"A novel approach to determine the local burnup in irradiated fuels using Atom Probe Tomography (APT)" Mukesh Bachhav, Jian Gan, Dennis Keiser, Jeffrey Giglio, Daniel Jadernas, Ann Leenaers, Sven Van den Berghe, Journal of Nuclear Materials Vol. 528 2020 Link | ||
"Clustering and Radiation Induced Segregation in Neutron Irradiated Fe-(3-18)Cr Alloys"
Mukesh Bachhav, Emmanuelle Marquis, G. Robert Odette,
Microsc. Microanal. 21
Vol. 21
2015
581-582
Link
High chromium ferritic-martensitic (F-M) steels are one of the promising structural material classes for future nuclear power plants. These steels are designed to combine corrosion resistance, conferred by chromium, with low swelling, high resistance to irradiation damage as well as to retain adequate toughness and elevated-temperature strength during service [1]. However, the long-term use of these steels in intense neutron irradiation environments requires reliable predictions of the evolution of their microstructures and mechanical properties. Binary Fe-Cr alloys constitute a model system for high Cr ferritic/martensitic steels and have therefore generated lot of interest by allowing the systematic study on irradiation induced microstructural changes. In the present study, microstructural changes in neutron irradiated Fe-Cr binary alloys are investigated using atom probe tomography (APT). A series of six Fe-Cr alloys of nominal compositions 3, 6, 9, 12, 15, and 18 at.%Cr were irradiated at a neutron fluence (E>1 MeV) of 1.1 x 1021 n/cm2 at 563 ± 15K and to a damage level of 1.82 displacements per atom (dpa). Solute distributions revealed a' precipitation for alloys containing more than 9at.%Cr (Figure 1). Both the Cr concentration dependence of a' precipitation and the measured matrix compositions are in agreement with the recently published Fe-Cr phase diagrams [2]. An irradiation-accelerated precipitation process is strongly suggested for a' precipitation. Along with homogenously distributed Cr-enriched clusters of the a' phase, few clusters involving Si, P, Ni, and Cr, are observed in the matrix [3]. For Fe-6, 9, 12 at.%Cr, Si and Cr are found segregated to dislocation loops and information pertaining to number density, size, and habit plane were analyzed for Fe-6at.%Cr alloy[4]. Grain boundary chemistry for Fe-Cr alloys are quantitatively compared between the as-received and the neutron irradiated alloys. Zones depleted of a' clusters and Si are found at the interfaces of carbide and nitride precipitates and along grain boundaries in the vicinity of these precipitates. To study stability of clusters and observed features in irradiated samples, annealing is carried out at high temperatures. The results are discussed in the context of equilibrium segregation, radiation-enhanced diffusion, and/or radiation induced segregation. |
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"Effect of proton pre-irradiation on corrosion of Zr-0.5Nb model alloys with different Nb distributions"
Zefeng Yu, Taeho Kim, Mukesh Bachhav, Xiang Liu, Adrien Couet, Lingfeng He,
Corrosion Science Volume 173
Vol. 173
2020
108790
Link
The effect of proton irradiation on corrosion rate of α-annealed and β-quenched Zr-0.5Nb alloys is investigated. The major focuses of this study are to understand i) if the nucleation of irradiation-induced platelets (IIPs)/nanoclusters requires dissolution of Nb-rich native precipitates, ii) if the irradiated native precipitates and interlaths are stable in the oxide, and iii) how much Nb content in the solid solution is suitable to lower the corrosion rate for Zr-Nb alloys. To answer these questions, the major characterization techniques used in this study are APT and (S)TEM/EDS to study the microstructure and microchemistry evolution following irradiation and oxidation. |
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"Elimination of remnant phases in low-temperature growth of wurtzite ScAlN by molecular-beam epitaxy" Janelle Wharry, Amrita Sen, Mukesh Bachhav, Brandon Dzuba, T. Nguyen, Rosa Diaz, Megha Dubey, Michael Manfra, Oana Malis, Journal of Applied Physics Vol. 132 2022 175701 Link | ||
"Interpreting the Presence of an Additional Oxide Layer in Analysis of Metal Oxides−Metal Interfaces in Atom Probe Tomography" Mukesh Bachhav, Gorakh Pawar, Yan Dong, Emmanuelle Marquis, Journal of Physical Chemistry Vol. 123 2018 1313-1319 Link | ||
"Irradiation-Induced Nb redistribution of ZrNb alloy: an APT study"
Zefeng Yu, Adrien Couet, Mukesh Bachhav,
Journal of Nuclear Materials
Vol. 516
2019
Link
We have investigated proton irradiation induced Nb redistribution in Zr-xNb alloy (x = 0.4, 0.5, 1.0) by using scanning transmission electron microscopy (STEM) and atom probe tomography (APT). We have found by STEM that 2MeV proton irradiation at 350°C induces precipitation of Nb-rich needle-like particles in the Zr matrix. Initially without irradiation effect, the Zr matrix only contains βNb and Laves phase native precipitates. After irradiation, in addition to the needle-like particles, we have also found by APT that Fe- and Nb-rich nanoclusters (less than 20 nm diamter) are present in the Zr matrix for Zr-0.5Nb, 1000°C annealed Zr-0.5Nb and Zr-1.0Nb. Despite different irradiation dose level, the total Nb content in the entire APT tip for all the samples ranges from 0.24 – 0.40 at. %, which is below the maximum solubility limit of 0.6 at. % Nb in Zr solid solution. After cluster removal from the Zr matrix of the irradiated samples, Nb concentration in the Zr solid solution is shown to significantly decrease with irradiation dose, which is suspected to be responsible for the improved corrosion resistance of ZrNb alloy in the reactor environment at high burnup. |
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"Local chemical ordering of a neutron-irradiated CrFeMnNi compositionally complex alloy"
Nathan Curtis, Sohail Shah, Mukesh Bachhav, Kaustubh Bawane, Fei Teng, Calvin Parkin, Tiankai Yao, Haiming Wen, Adrien Couet,
Acta Materialia
Vol. 286
2025
Link
While ion-irradiation studies are a critical first step in studying compositionally complex alloys (CCAs) for nuclear applications, they do not capture all the microstructural changes occurring under the low irradiation dose rates and different particles’ scattering patterns experienced in a nuclear reactor setting. To explore these phenomena in reactor-relevant conditions for the first time in CCA, the single-phase solid-solution Cr10Fe30Mn30Ni30 was neutron irradiated up to 6.61 displacements per atom at 395 and 579 °C. Irradiation-enhanced local chemical ordering (LCO) well beyond the range of short range ordering was observed, and is predicted to be the precursor to the precipitation of a coherent Ni-Mn L10 phase and a Cr-rich α’ phase, though TEM analysis did not indicate the presence of either in any irradiation condition. The line density of faulted dislocation loops decreased from 6.47 to 1.69 ∙ 1015 m−2 from 3.43 to 6.61 dpa at 579 °C despite no appreciable faulted loop content in the unirradiated material. LCO is expected to increase the complexity of the energy landscape within this alloy, restricting interstitial point defect mobility and creating local regions of greater stacking fault energy. These contribute to the negative correlation between irradiation dose and faulted dislocation loop density in this study, as well as the lack of void swelling observed. |
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"Measurement of grain boundary strength of Inconel X-750 superalloy using in-situ micro-tensile testing techniques in FIB/SEM system" Yachun Wang, Xiang Liu, Daniel Murray, Fei Teng, Wen Jiang, Mukesh Bachhav, Laura Hawkins, Emmanuel Perez, Cheng Sun, Xianming Bai, Jie Lian, Colin Judge, John Jackson, Robert Carter, Lingfeng He, Materials Science & Engineering Vol. 849 2022 Link | ||
"Microstructural changes and their effect on hardening in neutron irradiated Fe-Cr alloys" Dhriti Bhattacharyya, Takuya Yamamoto, Peter Wells, Emmanuelle Marquis, Mukesh Bachhav, Yuan Wu , Joel Davis, Alan Xu, G. Robert Odette, Journal of Nuclear Materials Vol. 519 2019 274-286 Link | ||
"Microstructural changes in a neutron-irradiated Fe–15 at.%Cr alloy"
Mukesh Bachhav, Emmanuelle Marquis, G. Robert Odette,
Journal of Nuclear Materials
Vol. 454
2014
381-386
Link
Microstructural changes in a Fe–15 at.%Cr model alloy neutron irradiated to 1.82 dpa at 290 °C were characterized by atom probe tomography. Homogenously distributed a' precipitates as well as fewer clusters containing Si, P, Ni, and Cr, were observed in the matrix. Grain boundary analyses before and after irradiation revealed segregation of Cr, with W-shape concentration profiles developing in the vicinity of grain boundary carbide and nitride particles. After irradiation, impurities such as C, Si and P were segregated to the grain boundaries. Zones depleted of a' clusters, and Si were found at the interfaces of carbide and nitride precipitates and along grain boundaries in the vicinity of these precipitates. |
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"Microstructural changes in a neutron-irradiated Fe–6 at.%Cr alloy"
Mukesh Bachhav, Emmanuelle Marquis, G. Robert Odette, Lan Yao,
Journal of Nuclear Materials
Vol. 453
2014
334-339
Link
The microstructural and chemical changes in a Fe–6 at.%Cr binary model alloy neutron irradiated to 1.82 dpa at 290 °C were investigated using atom probe tomography. After irradiation, Si and Cr are found segregated to dislocation loops, which were analyzed in terms of number density, size, and habit plane. Grain boundary chemistry was quantitatively compared between the as-received and the neutron irradiated alloys. The results are discussed in the context of equilibrium segregation, radiation-enhanced diffusion, and/or radiation induced segregation. |
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"Microstructure and Fission Product Distribution Examination in the UCO kernel of TRISO Fuel Particles" Isabella van Rooyen, Yong Yang, Terry Holesinger, Mukesh Bachhav, OSTI.gov, Conf Proceedings Vol. 2018 Link | ||
"Nanocluster Evolution in D9 Austenitic Steel under Neutron and Proton Irradiation"
Janelle Wharry, Mukesh Bachhav, Cheng Sun, Amrita Sen, Suraj Venkateshwaran Mullurkara, Akshara Bejawada,
Materials
Vol. 16
2023
4852
Link
Austenitic stainless steel D9 is a candidate for Generation IV nuclear reactor structural materials due to its enhanced irradiation tolerance and high-temperature creep strength compared to conventional 300-series stainless steels. But, like other austenitic steels, D9 is susceptible to irradiation- induced clustering of Ni and Si, the mechanism for which is not well understood. This study utilizes atom probe tomography (APT) to characterize the chemistry and morphology of Ni–Si nanoclusters in D9 following neutron or proton irradiation to doses ranging from 5–9 displacements per atom (dpa) and temperatures ranging from 430–683 ºC. Nanoclusters form only after neutron irradiation and exhibit classical coarsening with increasing dose and temperature. The nanoclusters have Ni3Si stoichiometry in a Ni core–Si shell structure. This core–shell structure provides insight into a potentially unique nucleation and growth mechanism—nanocluster cores may nucleate through local, spinodal-like compositional fluctuations in Ni, with subsequent growth driven by rapid Si diffusion. This study underscores how APT can shed light on an unusual irradiation-induced nanocluster nucleation mechanism active in the ubiquitous class of austenitic stainless steels. |
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"On a' precipitate composition in thermally annealed and neutron-irradiated Fe- 9-18Cr alloys"
Mukesh Bachhav, Emmanuelle Marquis, G. Robert Odette, Peter Wells, Takuya Yamamoto, Elaina Reese,
Journal of Nuclear Materials
Vol. 500
2018
192-198
Link
Ferritic-martensitic steels are leading candidates for many nuclear energy applications. However, formation of nanoscale a' precipitates during thermal aging at temperatures above 450?°C, or during neutron irradiation at lower temperatures, makes these Fe-Cr steels susceptible to embrittlement. To complement the existing literature, a series of Fe-9 to 18 Cr alloys were neutron-irradiated at temperatures between 320 and 455?°C up to doses of 20 dpa. In addition, post-irradiation annealing treatments at 500 and 600?°C were performed on a neutron-irradiated Fe-18 Cr alloy to validate the a-a' phase boundary. The microstructures were characterized using atom probe tomography and the results were analyzed in light of the existing literature. Under neutron irradiation and thermal annealing, the measured a' concentrations ranged from ~81 to 96?at.% Cr, as influenced by temperature, precipitate size, technique artifacts, and, possibly, cascade ballistic mixing. |
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"STEM-EDS/EELS and APT characterization of ZrN coatings on UMo fuel kernels" Lingfeng He, Mukesh Bachhav, Dennis Keiser, Emmanuel Perez, Brandon Miller, Jian Gan, Ann Leenaers, Sven Van den Berghe, Journal of Nuclear Materials Vol. 511 2018 174-182 Link | ||
"The effect of phosphorus on precipitation in irradiated reactor pressure vessel (RPV) steels"
Mukesh Bachhav, Nathan Almirall, Takuya Yamamoto, Emmanuelle Marquis, G. Robert Odette,
Journal of Nuclear Materials
Vol. 585
2023
Link
Embrittlement of light water reactor pressure vessel (RPV) steels by fast neutron irradiation may limit extended nuclear plant life. Embrittlement, which is manifested as increases in various indexes of a ductile to brittle transition temperatures (ΔT), is primarily due to hardening by nanoscale precipitates containing Cu, Ni, Mn, and Si, which form under irradiation. In addition to these elements, P has also been found to play a role in embrittlement. While only slightly enriched in the precipitates, hardening and embrittlement increase with trace P concentrations in low-Cu steels. Here, we characterize the individual and synergistic irradiation precipitation and hardening mechanisms in a series of RPV steels containing no to low-Cu and with systematic variations in Ni and P. The steels were irradiated to a fluence of ∼ 1.38×1020 n/cm2 at ∼ 292 °C in the UCSB ATR-2 experiment. In nominally Cu-free medium and high-Ni RPV steels, atom probe tomography shows that P and Ni promote precipitation of P-Mn-Si-Ni and Mn-Si-Ni precipitates, respectively. The precipitate microstructure correlates with the observed irradiation hardening. |
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"α' precipitation in neutron-irradiated Fe-Cr alloys"
Mukesh Bachhav, G. Robert Odette, Emmanuelle Marquis,
Scripta Materialia
Vol. 74
2014
48-51
Link
A series of model Fe–Cr alloys containing 3–18 at.% Cr was neutron irradiated at a nominal temperature of 563 K to 1.82 dpa. Solute distributions were analyzed by atom probe tomography, which revealed a' precipitation for alloys containing more than 9 at.% Cr. Both the Cr concentration dependence of a' precipitation and the measured matrix compositions are in agreement with the recently published Fe–Cr phase diagrams. An irradiation-accelerated precipitation process is strongly suggested. |
"Advanced Studies of Radiation Damage in Compositionally Complex Alloys" Haiming Wen, Dane Morgan, Adrien Couet, Nathan Curtis, Michael Moorehead, Mukesh Bachhav, Sohail Shah, Phalgun Nelaturu, Junliang Liu, Daniel Murray, Bao-Phong Nguyen, Dan Thoma, ” The Minerals, Metals, & Materials Society Conference March 3-7, (2024) | |
"Atom probe and transmission electron microscopy studies on neutron irradiated FeCrMnNi Compositionally Complex Alloy" Nathan Curtis, Calvin Parkin, Tiankai Yao, Mukesh Bachhav, Haiming Wen, Adrien Couet, Nuclear Science User Facilities’ Science Review Board Meeting August 1-1, (2023) | |
"Behavior of Fe-Cr Alloys under Ion or neutron Irradiation" Mukesh Bachhav, Emmanuelle Marquis, TMS 2014 February 16-20, (2014) | |
"Fission product distribution analysis in Zr lined U-Mo fuels using transmission electron microscopy and atom probe tomography" Nicole Rodriguez Perez, Sobhan Patnaik, shehab shousha, Mukesh Bachhav, Luca Capriotti, Benjamin Beeler, Geoffrey Beausoleil, Maria Okuniewski, TMS 2025 Annual Meeting March 23-27, (2025) | |
"High-Throughput Study of Ion Irradiation and Oxidation Responses in Multi-Principal Element Alloys" Nathan Curtis, Benoit Queylat, Michael Moorehead, Daniel Murray, Phalgun Nelaturu, Kim Kriewaldt, Bao-Phong Nguyen, Ryan Jacobs, Mukesh Bachhav, Dan Thoma, Dane Morgan, Adrien Couet, The Minerals, Metals, & Materials Society Conference March 19-23, (2023) | |
"Machine Learning on High-Throughput Databases of Irradiation Response and Corrosion Properties of Selected Compositionally Complex Alloys for Structural Nuclear Materials" Nathan Curtis, Benoit Queylat, Michael Moorehead, Daniel Murray, Phalgun Nelaturu, Kim Kriewaldt, Nate Eklof, Bao-Phong Nguyen, Ryan Jacobs, Mukesh Bachhav, Dan Thoma, Dan Thoma, Dane Morgan, Lianyi Chen, Adrien Couet, Advanced Materials and Manufacturing Technologies Program Review May 21-23, (2024) | |
"Neutron Irradiation Induced Local Chemical Ordering in CrFeMnNi and CrFeMnNiTiAl Compositionally Complex Alloys" Nathan Curtis, Sohail Shah, Kaustubh Bawane, Fei Teng, Tiankai Yao, Mukesh Bachhav, Haiming Wen, Adrien Couet, The Minerals, Metals, & Materials Society Conference March 23-27, (2025) | |
"Probing Irradiation Response in CrFeMnNi Compositionally Complex Alloys Using High-Throughput Methodology" Nathan Curtis, Michael Moorehead, Mukesh Bachhav, Benoit Queylat, Phalgun Nelaturu, Daniel Murray, Bao-Phong Nguyen, Nate Eklof, Zack Rielley, Dan Thoma, Dane Morgan, Adrien Couet, The Minerals, Metals, & Materials Society Conference March 23-27, (2025) | |
"Recent observations from the microstructural characterization of irradiated U-Mo fuels using advanced techniques" Dennis Keiser, Brandon Miller, Jian Gan, Lingfeng He, Daniel Jadernas, Mukesh Bachhav, NUMAT 2018 October 15-18, (2018) |
U.S. DOE Nuclear Science User Facilities Awards 35 Rapid Turnaround Experiment Research Proposals - Awards total approximately $1.3 million These projects will continue to advance the understanding of irradiation effects in nuclear fuels and materials in support of the mission of the DOE Office of Nuclear Energy. Wednesday, September 20, 2017 - Calls and Awards |
DOE awards 39 RTE Projects - Projects total approximately $1.3 million Thursday, February 1, 2018 - Calls and Awards |
DOE-NE Awards 19 RTE Projects - New projects total approximately $690K Thursday, February 6, 2020 - Announcement, Calls and Awards, Newsletter, News Release |
DOE Awards Eight CINR NSUF Projects - Projects include $3M in access grants and R&D funding Monday, July 6, 2020 - Calls and Awards |
Department of Energy Nuclear Science User Facilities Awards 29 Rapid Turnaround Experiment Proposals - Awarded projects total nearly $1.14M in access awards Tuesday, June 8, 2021 - News Release, Calls and Awards |
"The role of excess vacancies in stabilizing solute clusters in low-alloy steels" Anshul Kamboj, Mukesh Bachhav, Jia-Hong Ke, [2025] Scripta Materialia · DOI: 10.1016/j.scriptamat.2025.116797 | |
"Precision Local Burnup Assessment Through Dynamic Peak Fitting in Atom Probe Tomography for Depleted, Enriched, and Irradiated Metallic and Ceramic Fuels"
Sohail Shah, Joshua Kane, Jian Gan, William Hanson, Jefferey Giglio, Mukesh Bachhav, Anshul Kamboj,
[2025]
Microscopy and Microanalysis
· DOI: 10.1093/mam/ozaf066
Burnup estimation in nuclear fuels is vital for evaluating fuel performance, transportation, and safe fuel storage. Accurate assessments of burnup from service period and spent fuels involve tracking the consumption of fissile isotopes of uranium (U) offering a direct insight into energy changes within the fuels especially for thermal spectrum reactors. In current approach, mass spectroscopic technique in atom probe tomography (APT) is utilized for accurate quantification of U isotopes. Quantification of U peaks in mass spectrum is performed on asymmetric shapes due to delayed signals, known as thermal tails, particularly for poorly conducting samples analyzed in laser mode. In this study, we introduce a novel quantification tool for isotopic analysis from APT datasets by developing a fitting algorithm based on shapes of the peaks. A MATLAB-based dynamic peak fitting toolbox is developed and designed to adapt to various peak shapes, ensuring accurate quantification of U isotopes. The effectiveness of this approach is demonstrated in standard Ni-Cr sample, depleted and enriched U samples, and U-based fuels with different burnup levels. The viability of this approach for isotopic quantification is demonstrated on both metallic and ceramic fuels. |
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"Xenon–metal pair formation in UO2 investigated using DFT + U"
Shuxiang Zhou, Himani Mishra, Mukesh Bachhav, Jia Hong Ke, Chao Jiang, Lingfeng He, Sudipta Biswas, Linu Malakkal,
[2025]
Journal of Applied Physics
· DOI: 10.1063/5.0251289
A recent experimental study on a spent uranium dioxide (UO2) fuel sample from Belgium Reactor 3 identified a unique pair structure formed by the noble metal phase (NMP) and fission gas [xenon (Xe)] precipitate. However, the fundamental mechanism behind this structure remains unclear. The present study aims to provide an understanding of the interaction between five different metal precipitates [molybdenum (Mo), ruthenium (Ru), palladium (Pd), technetium (Tc), and rhodium (Rh)] and the Xe fission gas atoms in UO2, by using density functional theory (DFT) in combination with the Hubbard U correction to compute the formation energies involved. All DFT + U calculations were performed with occupation matrix control to ensure antiferromagnetic ordering of UO2. The calculated formation and binding energies of the Xe and solid fission products in the NMP reveal that these metal precipitates form stable pair structures with Xe. Notably, the formation energy of Xe–metal pairs is lower than that of the isolated single defects in all instances, with Pd and Mo showing the most favorable binding energy, likely accounting for the observed pair structure formation. |
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"Correlating microstructure and mechanical properties of harvested high dose Zorita light water reactor internals" Cameron Howard, Boopathy Kombaiah, Sriswaroop Dasari, Fei Teng, Yachun Wang, Jason Daniel, Mukesh Bachhav, Sohail Shah, [2024] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2024.155241 | |
"Advanced Characterization of Irradiated Silicon Carbide Claddings" , , Tiankai Yao, Mario Matos II, Fei Teng, Arnold Pradhan, Mukesh Bachhav, Sohail Shah, Peng Xu, Jason Schulthess, Daniel Murray, , Fei Xu, [2024] · DOI: 10.2172/2584189 | |
"Microstructural evolution in doped high entropy alloys NiCoFeCr-3X (X=Pd/Al/Cu) under irradiation" Boopathy Kombaiah, Jonathan D. Poplawsky, Mukesh Bachhav, Philip D. Edmondson, Hongbin Bei, Rahul Reddy Kancharla, Yanwen Zhang, Sriswaroop Dasari, [2024] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2024.155194 | |
"Atom probe tomography of segregation at grain boundaries and gas bubbles in neutron irradiated U-10 wt% Mo fuel" Andrew Hoffman, Mukesh Bachhav, Assel Aitkaliyeva, Yaqiao Wu, Brandon Miller, Dennis Keiser, Jian Gan, Haiming Wen, Maalavan Arivu, [2024] Materials Letters · DOI: 10.1016/j.matlet.2024.136414 · ISSN: 0167-577X | |
"Contributions to the mechanistic understanding of the microstructural evolution in irradiated U-Mo dispersion fuel" Charlyne A. Smith, Tsvetoslav R. Pavlov, William A. Hanson, Kaustubh K. Bawane, Mukesh N. Bachhav, Brandon D. Miller, Tammy L. Trowbridge, Jian Gan, Jeffrey J. Giglio, Alexander J. Winston, Jody L. Henley, Adam B. Robinson, Dennis D. Keiser, Irina Y. Glagolenko, B. Ye, Z.-G. Mei, Laura M. Jamison, Gerard L. Hofman, Abdellatif M. Yacout, Sven Van den Berghe, Ann Leenaers, Daniele Salvato, [2024] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2023.154789 · ISSN: 0022-3115 | |
"Evidence of Xe-incorporation in the bubble superlattice in irradiated U-Mo fuel" Mukesh Bachhav, Boopathy Kombaiah, Charlyne Smith, Assel Aitkaliyeva, Lingfeng He, Dennis Keiser, James Madden, Adam Robinson, Jian Gan, Brandon Miller, [2023] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2023.154743 | |
"Atom Probe characterization of neutron irradiated commercial ZIRLO® and AXIOM X2® alloys" Adrien Couet, Zefeng Yu, Mukesh Bachhav, [2023] · DOI: 10.2172/2462695 | |
"The effect of phosphorus on precipitation in irradiated reactor pressure vessel (RPV) steels" Mukesh N Bachhav, Megha Dubey, Nathan Almirall, Takuya Yamamoto, Emmanuelle A Marquis, G. Robert Odette, Anshul Kamboj, [2023] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2023.154614 · ISSN: 0022-3115 | |
"Impacts of irradiation-induced nanostructure on phonon linewidths and thermal conductivity in U-Zr alloy" Zilong Hua, Amrita Sen, Tiankai Yao, Matthew S. Bryan, Ahmet Alatas, Erika K. Nosal, Saqeeb Adnan, Enda Xiao, Aaron French, Mukesh Bachhav, Chris A. Marianetti, Marat Khafizov, Lin Shao, Lingfeng He, Janelle P. Wharry, David H. Hurley, Michael E. Manley, Hao Ma, [2023] Physical Review B · DOI: 10.1103/physrevb.108.104318 · ISSN: 2469-9950 | |
"Formation and Characterization of Hydride Rim Structures in Zircaloy-4 Nuclear Fuel Cladding Tubes" Mukesh Bachhav, Tiankai Yao, Xiaofei Pu, Jatuporn Burns, David Kamerman, [2023] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2023.154675 | |
"The role of UC inclusions in the development of fission gas bubble superlattice neutron-irradiated monolithic U-10Mo fuels" Kaustubh Bawane, Jian Gan, Dennis Keiser, Daniele Salvato, Mukesh Bachhav, Jan-Fong Jue, Charlyne Smith, [2023] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2023.154474 · ISSN: 0022-3115 | |
"Nanocluster Evolution in D9 Austenitic Steel under Neutron and Proton Irradiation"
Akshara Bejawada, Amrita Sen, Cheng Sun, Mukesh Bachhav, Janelle P. Wharry, Suraj Venkateshwaran Mullurkara,
[2023]
Materials
· DOI: 10.3390/ma16134852
· ISSN: 1996-1944
Austenitic stainless steel D9 is a candidate for Generation IV nuclear reactor structural materials due to its enhanced irradiation tolerance and high-temperature creep strength compared to conventional 300-series stainless steels. But, like other austenitic steels, D9 is susceptible to irradiation-induced clustering of Ni and Si, the mechanism for which is not well understood. This study utilizes atom probe tomography (APT) to characterize the chemistry and morphology of Ni–Si nanoclusters in D9 following neutron or proton irradiation to doses ranging from 5–9 displacements per atom (dpa) and temperatures ranging from 430–683 °C. Nanoclusters form only after neutron irradiation and exhibit classical coarsening with increasing dose and temperature. The nanoclusters have Ni3Si stoichiometry in a Ni core–Si shell structure. This core–shell structure provides insight into a potentially unique nucleation and growth mechanism—nanocluster cores may nucleate through local, spinodal-like compositional fluctuations in Ni, with subsequent growth driven by rapid Si diffusion. This study underscores how APT can shed light on an unusual irradiation-induced nanocluster nucleation mechanism active in the ubiquitous class of austenitic stainless steels. |
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"The advanced characterization, post-irradiation examination, and materials informatics for the development of ultra high-burnup annular U-10Zr metallic fuel"
Mukesh Bachhav, Fidelma G. Di Lemma, Fei Xu, Fei Teng, Daniel J. Murray, Michael T. Benson, Luca Capriotti, Tiankai Yao,
[2023]
Frontiers in Nuclear Engineering
· DOI: 10.3389/fnuen.2022.1050262
· ISSN: 2813-3412
U-Zr metallic fuel is a promising fuel candidate for Gen Ⅳ fast spectrum reactors. Previous experimental irradiation campaigns showed that the sodium thermal bonded U-10Zr fuel design can achieve a burnup of 10% fissions per initial heavy metal atom (FIMA). Advanced metallic fuel designs are pushing the burnup limit to 20% or even 30% FIMA. To achieve the higher burnup and eliminate the pyrophoric sodium, a prototypical annular fuel has been designed, fabricated, clad with HT-9 in the Materials and Fuels Complex, and irradiated in the Advanced Test Reactors of Idaho National Laboratory (INL) to a peak burnup of 3.3% FIMA. During irradiation, the mechanical contact between fuel and cladding acts as a thermal bond. The irradiation lasted for 132 days in the reactor. Recently, the archived fresh and irradiated fuel samples were characterized using advanced characterization capabilities in the Irradiated Materials Characterization Laboratory (IMCL) of INL. This article summarizes the results of advanced characterization and computer vision-based materials informatics to reveal the irradiation effects on U-Zr metallic fuel. Future work will focus on further implementation of advanced characterization and statistical data mining to improve the fidelity of fuel performance modeling and support U-Zr metallic fuel qualification for fast spectrum reactors. |
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"Diffusion Study of Uranium Mononitride/Zirconium Carbide Composite for Space Nuclear Propulsion" Nathan D. Jerred, Randall Scott, Mukesh Bachhav, Tiankai Yao, Victoria M. Miller, Sarah Hamilton, [2023] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2023.154535 | |
"Early self-organization of fission gas bubble superlattice formation in neutron-irradiated monolithic U-10Mo fuels" Kaustubh Bawane, Daniele Salvato, Mukesh Bachhav, Dennis Keiser, Brandon Miller, Jian Gan, Jan-Fong Jue, Dong Choe, Paul Gilbreath, William Hanson, Charlyne Smith, [2023] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2023.154358 · ISSN: 0022-3115 | |
"Ion irradiation induced amorphization of precipitates in Zircaloy" P. Wang, G.S. Was, M. Bachhav, A.T. Motta, J. Bowman, [2022] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2022.153988 · ISSN: 0022-3115 | |
"Elimination of remnant phases in low-temperature growth of wurtzite ScAlN by molecular-beam epitaxy"
Trang Nguyen, Amrita Sen, Rosa E. Diaz, Megha Dubey, Mukesh Bachhav, Janelle P. Wharry, Michael J. Manfra, Oana Malis, Brandon Dzuba,
[2022]
Journal of Applied Physics
· DOI: 10.1063/5.0118075
· ISSN: 0021-8979
Growth of wurtzite ScxAl1−xN (x < 0.23) by plasma-assisted molecular-beam epitaxy on c-plane GaN at high temperatures significantly alters the extracted lattice constants of the material due to defects likely associated with remnant phases. In contrast, ScAlN grown below a composition-dependent threshold temperature exhibits uniform alloy distribution, reduced defect density, and atomic-step surface morphology. The c-plane lattice constant of this low-temperature ScAlN varies with composition as expected from previous theoretical calculations and can be used to reliably estimate alloy composition. Moreover, lattice-matched Sc0.18Al0.82N/GaN multi-quantum wells grown under these conditions display strong and narrow near-infrared intersubband absorption lines that confirm advantageous optical and electronic properties. |
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"Advanced Characterization of Fuel Cladding Chemical Interaction between U-10Zr Fuel and HT9 Cladding Tested in Fast Flux Test Facility" Brandon D Miller, Jason M Harp, Mukesh N Bachhav, Luca Capriotti, Tiankai Yao, Yachun Wang, [2022] Microscopy and Microanalysis · DOI: 10.1017/s1431927622008145 · ISSN: 1435-8115 | |
"High Throughput Studies on Irradiated High Entropy Alloys" Benoit Queylat, Michael Moorehead, Daniel Murray, Calvin Parkin, Nathan Curtis, Phalgun Nelaturu, Dane Thoma, Dane Morgan, Adrien Couet, Mukesh Bachhav, [2022] Microscopy and Microanalysis · DOI: 10.1017/s1431927622008121 · ISSN: 1435-8115 | |
"Measurement of grain boundary strength of Inconel X-750 superalloy using in-situ micro-tensile testing techniques in FIB/SEM system" Xiang Liu, Daniel J. Murray, Fei Teng, Wen Jiang, Mukesh Bachhav, Laura Hawkins, Emmanuel Perez, Cheng Sun, Xianming Bai, Jie Lian, Colin D. Judge, John H. Jackson, Robert G. Carter, Lingfeng He, Yachun Wang, [2022] Materials Science and Engineering: A · DOI: 10.1016/j.msea.2022.143475 · ISSN: 0921-5093 | |
"Phase stability, mechanical properties, and ion irradiation effects in face-centered cubic CrFeMnNi compositionally complex solid-solution alloys at high temperatures" Michael Moorehead, Mohamed Elbakhshwan, Xuan Zhang, Pengyuan Xiu, Lingfeng He, Mukesh Bachhav, Kumar Sridharan, Adrien Couet, Calvin Parkin, [2022] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2022.153733 · ISSN: 0022-3115 | |
"Correlation between thickness dependent nanoscale structural chemistry and superconducting properties of ultrathin epitaxial NbN films" Jith Sarker, Mukesh Bachhav, Pinku Roy, Xiucheng Wei, Zihao Yang, Nag Patibandla, Hao Zeng, Mingwei Zhu, Quanxi Jia, Baishakhi Mazumder, Olivia G. Licata, [2022] Materials Chemistry and Physics · DOI: 10.1016/j.matchemphys.2022.125962 · ISSN: 0254-0584 | |
"Compositionally graded specimen made by laser additive manufacturing as a high-throughput method to study radiation damages and irradiation-assisted stress corrosion cracking" Laura Hawkins, Miao Song, Lingfeng He, Mukesh Bachhav, Qingyu Pan, Lin Shao, Daniel Schwen, Xiaoyuan Lou, Jingfan Yang, [2022] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2021.153493 · ISSN: 0022-3115 | |
"Chemical and elemental mapping of spent nuclear fuel sections by soft X-ray spectromicroscopy"
Danil E. Smiles, Daniel Lussier, Alison B. Altman, Mukesh Bachhav, Lingfeng He, Michael W. Mara, Claude Degueldre, Stefan G. Minasian, David K. Shuh, Alexander Scott Ditter,
[2022]
Journal of Synchrotron Radiation
· DOI: 10.1107/s1600577521012315
· ISSN: 1600-5775
Soft X-ray spectromicroscopy at the O |
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"Emulation of neutron damage with proton irradiation and its effects on microstructure and microchemistry of Zircaloy-4" Josh Bowman, Mukesh Bachhav, Bruce Kammenzind, Richard Smith, Jesse Carter, Arthur Motta, Evrard Lacroix, Gary Was, Peng Wang, [2021] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2021.153281 · ISSN: 0022-3115 | |
"Layer dissolution in accumulative roll bonded bulk Zr/Nb multilayers under heavy-ion irradiation" B. Kombaiah, M.N. Bachhav, T.J. Nizolek, Y.Q. Wang, M. Knezevic, N. Mara, O. Anderoglu, M. Radhakrishnan, [2021] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2021.153315 · ISSN: 0022-3115 | |
"Nanoscale redistribution of alloying elements in high-burnup AXIOM-2 (X2®) and their effects on in-reactor corrosion" Mukesh Bachhav, Fei Teng, Lingfeng He, Adrien Couet, Zefeng Yu, [2021] Corrosion Science · DOI: 10.1016/j.corsci.2021.109652 · ISSN: 0010-938X | |
"Application of Atom Probe Tomography as a Method to Investigate Localized Thermal Transport in Actinide-Bearing Oxides" Mukesh Bachhav, Janelle Wharry, Amrita Sen, [2021] Microscopy and Microanalysis · DOI: 10.1017/s1431927621010679 · ISSN: 1431-9276 | |
"Isotopic Analysis of Irradiated Ceramic Fuel for Burnup and Microchemical Assessment Using Atom Probe Tomography." Joshua Kane, Fei Teng, Fabiola Cappia, Lingfeng He, Mukesh Bachhav, [2021] Microscopy and Microanalysis · DOI: 10.1017/s1431927621002002 · ISSN: 1431-9276 | |
"Radiation-induced mixing and demixing behavior in metallic multilayers exhibiting limited solid miscibility" Thomas Nizolek, Nan Li, Yongqiang Wang, Mukesh Bachhav, Boopathy Kombaiah, Osman Anderoglu, Madhavan Radhakrishnan, [2021] Microscopy and Microanalysis · DOI: 10.1017/s1431927621010163 · ISSN: 1431-9276 | |
"Microstructural Changes and Chemical Analysis of Fission Products in Irradiated Uranium-7 wt.% Molybdenum Metallic Fuel Using Atom Probe Tomography"
Brandon Miller, Jian Gan, Dennis Keiser, Ann Leenaers, S. Van den Berghe, Mitchell K. Meyer, Mukesh Bachhav,
[2021]
Applied Sciences
· DOI: 10.3390/app11156905
· ISSN: 2076-3417
Understanding the microstructural and phase changes occurring during irradiation and their impact on metallic fuel behavior is integral to research and development of nuclear fuel programs. This paper reports systematic analysis of as-fabricated and irradiated low-enriched U-Mo (uranium-molybdenum metal alloy) fuel using atom probe tomography (APT). This study is carried out on U-7 wt.% Mo fuel particles coated with a ZrN layer contained within an Al matrix during irradiation. The dispersion fuel plates from which the fuel samples were extracted are irradiated at Belgian Nuclear Research Centre (SCK CEN) with burn-up of 52% and 66% in the framework of the SELENIUM (Surface Engineering of Low ENrIched Uranium-Molybdenum) project. The APT studies on U-Mo particles from as-fabricated fuel plates enriched to 19.8% revealed predominantly γ-phase U-Mo, along with a network of the cell boundary decorated with α-U, γ’-U2Mo, and UC precipitates along the grain boundaries. The corresponding APT characterization of irradiated fuel samples showed formation of fission gas bubbles enriched with solid fission products. The intermediate burnup sample showed a uniform distribution of the typical bubble superlattice with a radius of 2 nm arranged in a regular lattice, while the high burnup sample showed a non-uniform distribution of bubbles in grain-refined regions. There was no evidence of remnant α-U, γ’-U2Mo, and UC phases in the irradiated U-7 wt.% Mo samples. |
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"Fundamental Understanding of Nb Effect on Corrosion Mechanisms of Irradiated Zr-Nb Alloys"
Michael Moorehead, Léo Borrel, Jing Hu, Mukesh Bachhav, Adrien Couet, Zefeng Yu,
[2021]
· DOI: 10.1520/stp162220190021
Although zirconium-niobium (Zr-Nb) alloys are commonly used over Zircaloys as fuel claddings in light-water reactors, the fundamental understanding of Nb effects on oxidation and hydrogen pickup mechanisms, especially under irradiation, is still lacking. This study aims at filling this knowledge gap by coupling state-of-the-art experimental and modeling approaches on a set of Zr-xNb (x = 0.5/1.0) model alloys, with different heat treatments and irradiation dose levels to understand the effect of Nb redistribution on corrosion kinetics. To investigate the effect of irradiation on Nb distribution in a Zr-Nb metal substrate, Zr-Nb alloys have been irradiated by 2-MeV protons up to 1 dpa (flat region, about 1.3 × 1019 ions/cm2) at 350°C at the University of Wisconsin Ion Beam Laboratory. Nb redistribution after irradiation has been characterized by scanning transmission electron microscopy and atom probe tomography with a focus on radiation-induced platelets and solute concentrations. Results from atom probe tomography show that indeed solute concentration in solid solution decreases with irradiation dose, which may explain the enhanced corrosion resistance of irradiated Zr-Nb alloys via space-charge effects in the oxide. To understand the correlation between oxide space charge and corrosion kinetics, X-ray absorption near-edge spectroscopy was performed to measure the Nb oxidation states as a function of exposure time and oxide depth in two different annealed Zr-1.0Nb samples, corroded in high-temperature water up to 240 days. X-ray absorption near-edge spectroscopy results show that Zr-1.0Nb with lower, sub-parabolic, corrosion kinetics contains less Nb concentration in solid solution. Lastly, the observed corrosion kinetics are rationalized based on the coupled current charge compensation model in terms of Nb redistribution and its compensation effect on oxide space charges. The effect of irradiation on corrosion kinetics of Zr-Nb alloys is discussed in the light of experimental and modeling results. |
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"Helium-bubble-enhanced disordering of intermetallic phase under irradiation" Mukesh N. Bachhav, Yongqiang Wang, Meimei Li, Stuart A. Maloy, Cheng Sun, [2021] Materials Characterization · DOI: 10.1016/j.matchar.2021.111094 · ISSN: 1044-5803 | |
"Understanding spinodal and binodal phase transformations in U-50Zr" Amrita Sen, Adrian Wagner, Fei Teng, Mukesh Bachhav, Anter EI-Azab, Daniel Murray, Jian Gan, David H. Hurley, Janelle P. Wharry, Michael T. Benson, Lingfeng He, Tiankai Yao, [2021] Materialia · DOI: 10.1016/j.mtla.2021.101092 · ISSN: 2589-1529 | |
"Influence of field conditions on quantitative analysis of single crystal thorium dioxide by atom probe tomography" Mukesh Bachhav, Francois Vurpillot, J. Matthew Mann, Phyllis K. Morgan, Timothy A. Prusnick, Janelle P. Wharry, Amrita Sen, [2021] Ultramicroscopy · DOI: 10.1016/j.ultramic.2020.113167 · ISSN: 0304-3991 | |
"Atom Probe Tomography for Burnup and Fission Product Analysis for Nuclear Fuels" Lingfeng He, Joshua Kane, Xiang Liu, Jian Gan, Francois Vurpiliot, Mukesh Bachhav, [2020] Microscopy and Microanalysis · DOI: 10.1017/s1431927620023776 · ISSN: 1431-9276 | |
"A novel approach to determine the local burnup in irradiated fuels using Atom Probe Tomography (APT)" Jian Gan, Dennis Keiser, Jeffrey Giglio, Daniel Jädernäs, Ann Leenaers, Sven Van den Berghe, Mukesh Bachhav, [2020] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2019.151853 · ISSN: 0022-3115 | |
"A transmission electron microscopy study of EBR-II neutron-irradiated austenitic stainless steel 304 and nickel-base alloy X-750" Lingfeng He, Huan Yan, Mukesh Bachhav, James F. Stubbins, Xiang Liu, [2020] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2019.151851 · ISSN: 0022-3115 | |
"Microstructure and fission products in the UCO kernel of an AGR-1 TRISO fuel particle after post irradiation safety testing" Isabella J. van Rooyen, Mukesh Bachhav, Yong Yang, Zhenyu Fu, [2020] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2019.151884 · ISSN: 0022-3115 | |
"Using Atom Probe Tomography as a Forensic Tool to Determine Burnup from Nuclear Fuels" Jian Gan, Dennis Keiser, Jeffrey Giglio, Daniel Wachs, Mukesh Bachhav, [2019] Microscopy and Microanalysis · DOI: 10.1017/s143192761900850x · ISSN: 1431-9276 | |
"Microstructural changes and their effect on hardening in neutron irradiated Fe-Cr alloys" Takuya Yamamoto, Peter Wells, Emmanuelle Marquis, Mukesh Bachhav, Yuan Wu, Joel Davis, Alan Xu, G. Robert Odette, Dhriti Bhattacharyya, [2019] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2019.03.022 · ISSN: 0022-3115 | |
"Interpreting the Presence of an Additional Oxide Layer in Analysis of Metal Oxides–Metal Interfaces in Atom Probe Tomography" Gorakh Pawar, Francois Vurpillot, Raphaële Danoix, Frédéric Danoix, Beatrice Hannoyer, Yan Dong, Emmanuelle Marquis, Mukesh Bachhav, [2019] The Journal of Physical Chemistry C · DOI: 10.1021/acs.jpcc.8b10895 | |
"Role of structural hydroxyl groups in enhancing performance of electrochemically-synthesized bilayer V2O5" Justin G. Connell, Pietro P. Lopes, Mukesh Bachhav, Baris Key, Carlos Valero-Vidal, Ethan J. Crumlin, Vojislav R. Stamenkovic, Nenad M. Markovic, Sanja Tepavcevic, [2018] Nano Energy · DOI: 10.1016/j.nanoen.2018.09.005 · ISSN: 2211-2855 | |
"Role of structural hydroxyl groups in enhancing performance of electrochemically-synthesized bilayer V |
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"Microstructural characterization of as-fabricated and irradiated U-Mo fuel using SEM/EBSD" Jian Gan, Dennis Keiser, James Madden, Mukesh Bachhav, Jan-Fong Jue, Adam Robinson, Daniel Jadernas, [2018] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2018.06.007 · ISSN: 0022-3115 | |
"On α′ precipitate composition in thermally annealed and neutron-irradiated Fe- 9-18Cr alloys" Mukesh Bachhav, Peter Wells, Takuya Yamamoto, G. Robert Odette, Emmanuelle A. Marquis, Elaina R. Reese, [2018] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2017.12.036 · EID: 2-s2.0-85040005440 | |
"STEM-EDS/EELS and APT characterization of ZrN coatings on UMo fuel kernels" M. Bachhav, D.D. Keiser, J.W. Madden, E. Perez, B.D. Miller, J. Gan, W. Van Renterghem, A. Leenaers, S. Van den Berghe, L. He, [2018] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2018.09.004 · EID: 2-s2.0-85053800105 | |
"Field Evaporation Behavior of Metal Oxide/Metal Interfaces" Francois Vurpillot, Frederic Danoix, Raphaële Danoix, Beatrice Hannoyer, Emmanuelle A. Marquis, Mukesh Bachhav, [2016] Microscopy and Microanalysis · DOI: 10.1017/s1431927616004244 · ISSN: 1431-9276 | |
"On Growth and Chemistry of Electrodeposited Mg Layers with Electrolytes Having Varying Cl Content for Battery Application" Emily Nelson, Adam Crowe, Bart Bartlett, Nathan Hahn, Kevin Zavadil, Peng-Wei Chu, Emmanuelle A. Marquis, Mukesh Bachhav, [2016] Microscopy and Microanalysis · DOI: 10.1017/s1431927616007352 · ISSN: 1431-9276 | |
"Microstructure and Chemistry of Electrodeposited Mg Films" Nathan T. Hahn, Kevin R. Zavadil, Emily G. Nelson, Adam J. Crowe, Bart M. Bartlett, Peng-Wei Chu, Vicente J. Araullo-Peters, Emmanuelle A. Marquis, Mukesh N. Bachhav, [2016] Journal of The Electrochemical Society · DOI: 10.1149/2.0181613jes · ISSN: 0013-4651 | |
"Atomic Scale Investigation of Orthopyroxene and Olivine Grain Boundaries by Atom Probe Tomography" Yan Dong, Philip Skemer, Emmanuelle A. Marquis, Mukesh Bachhav, [2015] Microscopy and Microanalysis · DOI: 10.1017/s1431927615007369 · ISSN: 1431-9276 | |
"Clustering and Radiation Induced Segregation in Neutron Irradiated Fe-(3-18)Cr Alloys" G. Robert Odette, Emmanuelle A. Marquis, Mukesh Bachhav, [2015] Microscopy and Microanalysis · DOI: 10.1017/s1431927615003700 · ISSN: 1431-9276 | |
"Microscopic Characterization of Electrodeposited Mg Layers for Battery Application" Emily Nelson, Adam Crowe, Bart Bartlett, Nathan Hahn, Kevin Zavadil, Peng-Wei Chu, Emmanuelle A. Marquis, Mukesh Bachhav, [2015] Microscopy and Microanalysis · DOI: 10.1017/s1431927615002470 · ISSN: 1431-9276 | |
"Erratum: On the current role of atom probe tomography in materials characterization and materials science (Current Opinion in Solid State and Materials Science. (2014) 17:5 (217-223))" Mukesh Bachhav, Yimeng Chen, Yan Dong, Lyle M. Gordon, Derk Joester, Adam McFarland, Emmanuelle A. Marquis, [2015] Current Opinion in Solid State and Materials Science · DOI: 10.1016/j.cossms.2014.09.004 · EID: 2-s2.0-84924168759 | |
"α′ precipitation in neutron-irradiated Fe–Cr alloys" G. Robert Odette, Emmanuelle A. Marquis, Mukesh Bachhav, [2014] Scripta Materialia · DOI: 10.1016/j.scriptamat.2013.10.001 · ISSN: 1359-6462 | |
"α′ precipitation in neutron-irradiated Fe-Cr alloys" G. Robert Odette, Emmanuelle A. Marquis, Mukesh Bachhav, [2014] Scripta Materialia · DOI: 10.1016/j.scriptamat.2013.10.001 · EID: 2-s2.0-84890976014 | |
"Microstructural changes in a neutron-irradiated Fe-15 at.%Cr alloy" G. Robert Odette, Emmanuelle A. Marquis, Mukesh Bachhav, [2014] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2014.08.026 · EID: 2-s2.0-84908160630 | |
"Microstructural changes in a neutron-irradiated Fe-6 at.%Cr alloy" Lan Yao, G. Robert Odette, Emmanuelle A. Marquis, Mukesh Bachhav, [2014] Journal of Nuclear Materials · DOI: 10.1016/j.jnucmat.2014.06.050 · EID: 2-s2.0-84904275440 | |
"Atom Probe Tomography Study of In-Doped ZnO"
M.N. Bachhav, A.H. Hunter, E.A. Marquis, D.C. Bell, X. Liang, D.R. Clarke, M. Baram,
[2013]
Microscopy and Microanalysis
· DOI: 10.1017/s1431927613007149
· ISSN: 1431-9276
Extended abstract of a paper presented at Microscopy and Microanalysis 2013 in Indianapolis, Indiana, USA, August 4 – August 8, 2013. |
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"Investigation of O-18 enriched hematite (α-Fe |
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"On the current role of atom probe tomography in materials characterization and materials science" Mukesh Bachhav, Yimeng Chen, Yan Dong, Lyle M. Gordon, Adam McFarland, Emmanuelle A. Marquis, [2013] Current Opinion in Solid State and Materials Science · DOI: 10.1016/j.cossms.2013.09.003 · EID: 2-s2.0-84887018314 | |
"Evidence of lateral heat transfer during laser assisted atom probe tomography analysis of large band gap materials" R. Danoix, F. Vurpillot, B. Hannoyer, S. B. Ogale, F. Danoix, M. N. Bachhav, [2011] Applied Physics Letters · DOI: 10.1063/1.3622647 · EID: 2-s2.0-80052406427 | |
"Investigation of wustite (Fe |
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"Enhanced nonvolatile resistive switching in dilutely cobalt doped TiO Incorporation of dilute concentration of dopant having a valence state different than that of the host cation enables controlled incorporation proximity vacancy defects for local charge balance. Since nonvolatile resistive switching is a phenomenon tied to such defects, it can be expected to be influenced by dilute doping. In this work, we demonstrate that enhanced nonvolatile resistive switching is realized in dilutely cobalt doped TiO2 films grown at room temperature. We provide essential characterizations and analyses. We suggest that the oxygen vacancies in the proximity of immobile dopants provide well distributed anchors for the development of systematic filamentary tracks. |
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Source: ORCID/CrossRef using DOI |
The Nuclear Science User Facilities (NSUF) is the U.S. Department of Energy Office of Nuclear Energy's only designated nuclear energy user facility. Through peer-reviewed proposal processes, the NSUF provides researchers access to neutron, ion, and gamma irradiations, post-irradiation examination and beamline capabilities at Idaho National Laboratory and a diverse mix of university, national laboratory and industry partner institutions.
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