NSUF - Nuclear Science User Facilities

Matt Schneider

Profile Information
Name
Mr Matt Schneider
Institution
Los Alamos National Laboratory
Position
Research Technologist
h-Index
ORCID
0000-0002-7425-7736
Publications:
"Solid state welding of the nanostructured ferritic alloy 14YWT using a capacitive discharge resistance welding technique" Calvin Lear, Jonathan Gigax , Matt Schneider, Todd Steckley, Thomas Lienert, Stuart Maloy, Ben Eftink, Metals Vol. 12 2021 23 Link
Joining nanostructured ferritic alloys (NFAs) has proved challenging, as the nano-oxides that provide superior strength, creep resistance, and radiation tolerance at high temperatures tend to agglomerate, redistribute, and coarsen during conventional fusion welding. In this study, capacitive discharge resistance welding (CDRW)—a solid-state variant of resistance welding—was used to join end caps and thin-walled cladding tubes of the NFA 14YWT. The resulting solid-state joints were found to be hermetically sealed and were characterized across the weld region using electron microscopy (macroscopic, microscopic, and nanometer scales) and nanoindentation. Microstructural evolution near the weld line was limited to narrow (~50–200 μm) thermo-mechanically affected zones (TMAZs) and to a reduction in pre-existing component textures. Dispersoid populations (i.e., nano-oxides and larger oxide particles) appeared unchanged by all but the highest energy and power CDRW condition, with this extreme producing only minor nano-oxide coarsening (~2 nm → ~5 nm Ø). Despite a minimal microstructural change, the TMAZs were found to be ~10% softer than the surrounding base material. These findings are considered in terms of past solid-state welding (SSW) efforts—cladding applications and NFA-like materials in particular—and in terms of strengthening mechanisms in NFAs and the potential impacts of localized temperature–strain conditions during SSW.
Presentations:
"Capacitive Discharge Resistance Welding of 14YWT and Other Alloys" Calvin Lear, Ben Eftink, Lindsey Lindamood, Todd Steckley, Matt Schneider, Jerry Gould, Thomas Lienert, Stuart Maloy, TMS 2020 Annual Meeting & Exhibition February 23-27, (2020)
"Impact of Capacitive Discharge Resistance Welding on the Radiation Tolerance of 14YWT Cladding" Calvin Lear, Hyosim Kim, Matt Schneider, Todd Steckley, Yongqiang Wang, Thomas Lienert, Stuart Maloy, Ben Eftink, Structural Materials for Innovative Nuclear Systems (SMINS-6) September 12-15, (2022)
Additional Publications:
"Effect of applied stress on radiation-induced loop and raft formation in molybdenum" M.M. Schneider, W.Y. Chen, A.A. Kohnert, H.T. Vo, [2025] Scripta Materialia · DOI: 10.1016/j.scriptamat.2025.116757
"Combinatorial Printing of Iron and Cobalt Reactive Inks to Produce Magnetic Amorphous and Nanocrystalline Metals" Joshua Edwards, Chris Matsumura, Matthew Michael Schneider, Serena Eley, Suveen N. Mathaudhu, Owen J. Hildreth, Collin E. Miller, [2024] ACS Applied Nano Materials · DOI: 10.1021/acsanm.4c05047
"Elastic shielding mediated by deformation twin facets in hexagonal close-packed metals" D. Bamney, R.J. McCabe, M.M. Schneider, K. Dang, M. Pettes, C.N. Tomé, L. Capolungo, H.T. Vo, [2024] Applied Materials Today · DOI: 10.1016/j.apmt.2024.102265
"Automated characterization and classification of 3D microstructures: an application to 3D deformation twin networks in titanium" P. Pinney, M.M. Schneider, M. Arul Kumar, R.J. McCabe, C.N. Tomé, L. Capolungo, H.T. Vo, [2023] Materials Today Advances · DOI: 10.1016/j.mtadv.2023.100425
"Near Infrared Plasmonic Properties in Spinel Metal Oxide Nanocrystals [Poster]" Ekaterina Dolgopolova, Paul Bourdin, Andrew West, Siyuan Zhang, Matthew Schneider, Sergei Ivanov, Maiken Mikkelsen, Jennifer Hollingsworth, Victoria Nisoli, [2023] · DOI: 10.2172/1993209
"Evidence of a Uranium‐Paddlewheel Node in a Catecholate‐Based Metal–Organic Framework" Xijun Wang, Andrew S. Rosen, Xingjie Wang, Xinyi Gong, Matthew Schneider, Tatyana Elkin, Kent O. Kirlikovali, Melissa Fairley, Matthew D. Krzyaniak, Michael R. Wasielewski, Nathan C. Gianneschi, Randall Q. Snurr, Omar K. Farha, Julia G. Knapp, [2023] Angewandte Chemie International Edition · DOI: 10.1002/anie.202305526
Abstract

The interactions between uranium and non‐innocent organic species are an essential component of fundamental uranium redox chemistry. However, they have seldom been explored in the context of multidimensional, porous materials. Uranium‐based metal–organic frameworks (MOFs) offer a new angle to study these interactions, as these self‐assembled species stabilize uranium species through immobilization by organic linkers within a crystalline framework, while potentially providing a method for adjusting metal oxidation state through coordination of non‐innocent linkers. We report the synthesis of the MOF NU‐1700, assembled from U4+‐paddlewheel nodes and catecholate‐based linkers. We propose this highly unusual structure, which contains two U4+ ions in a paddlewheel built from four linkers—a first among uranium materials—as a result of extensive characterization via powder X‐ray diffraction (PXRD), sorption, transmission electron microscopy (TEM), and thermogravimetric analysis (TGA), in addition to density functional theory (DFT) calculations.
"Induced Ferromagnetism in Epitaxial Uranium Dioxide Thin Films" Binod Paudel, Amanda Huon, Matthew M. Schneider, Pinku Roy, Zachary Corey, Rico Schönemann, Andrew C. Jones, Marcelo Jaime, Dmitry A. Yarotski, Timothy Charlton, Michael R. Fitzsimmons, Quanxi Jia, Michael T. Pettes, Ping Yang, Aiping Chen, Yogesh Sharma, [2022] Advanced Science · DOI: 10.1002/advs.202203473
Abstract

Actinide materials have various applications that range from nuclear energy to quantum computing. Most current efforts have focused on bulk actinide materials. Tuning functional properties by using strain engineering in epitaxial thin films is largely lacking. Using uranium dioxide (UO2) as a model system, in this work, the authors explore strain engineering in actinide epitaxial thin films and investigate the origin of induced ferromagnetism in an antiferromagnet UO2. It is found that UO2+x thin films are hypostoichiometric (x<0) with in‐plane tensile strain, while they are hyperstoichiometric (x>0) with in‐plane compressive strain. Different from strain engineering in non‐actinide oxide thin films, the epitaxial strain in UO2 is accommodated by point defects such as vacancies and interstitials due to the low formation energy. Both epitaxial strain and strain relaxation induced point defects such as oxygen/uranium vacancies and oxygen/uranium interstitials can distort magnetic structure and result in magnetic moments. This work reveals the correlation among strain, point defects and ferromagnetism in strain engineered UO2+x thin films and the results offer new opportunities to understand the influence of coupled order parameters on the emergent properties of many other actinide thin films.
"Tensile and failure behaviors of Cu/Nb nanolaminates: the effects of loading direction, layer thickness, and annealing" Jonathan G. Gigax, Thomas J. Nizolek, John S. Carpenter, Matthew M. Schneider, Nan Li, Laurent Capolungo, Rodney J. McCabe, Yifan Zhang, [2022] Acta Materialia · DOI: 10.1016/j.actamat.2022.118346
"Kink mechanism in Cu/Nb nanolaminates explored by in situ pillar compression" Nan Li, Matthew M. Schneider, Thomas J. Nizolek, Laurent Capolungo, Rodney J. McCabe, Yifan Zhang, [2022] Acta Materialia · DOI: 10.1016/j.actamat.2022.118150
"Microstructural dependence of defect formation in iron-oxide thin films" Sean Mills, Sahil Agarwal, James A. Valdez, J. Kevin Baldwin, Matthew M. Schneider, Andrew M. Minor, Blas P. Uberuaga, Farida Selim, Nan Li, Benjamin K. Derby, [2022] Applied Surface Science · DOI: 10.1016/j.apsusc.2022.152844
"IMS Rapid Response FY21 Summary Report for: Integrating Patterned Probes with Four-Dimensional Scanning Transmission Electron Microscopy for Unrivaled Crystallographic Structure Determination in Nanomaterials" Matthew Schneider, Matthew Janish, Alejandra Calderon, Michael Pettes, [2021] · DOI: 10.2172/1825383
"Deformation twinning versus slip in Ni-based alloys, containing Pt2Mo-structured, Ni2Cr-typed precipitates" K. Dang, F. Teng, M. Schneider, B.P. Eftink, S.A. Maloy, J.D. Tucker, L. Capolungo, P. Hosemann, H.T. Vo, [2021] Materials & Design · DOI: 10.1016/j.matdes.2021.109820
"Recent Advancements in Tools and Techniques for Materials Characterization in the EML [Slides]" Matthew Schneider, [2021] · DOI: 10.2172/1821329
"Enhanced mechanical properties of additive manufactured Grade 91 steel" B.P. Eftink, C.M. Cady, D.R. Coughlin, M.M. Schneider, S.A. Maloy, O. El-Atwani, [2021] Scripta Materialia · DOI: 10.1016/j.scriptamat.2021.113888
"Aging & Lifetimes - Microscopy of Uranium Hydride in FY2020 [Slides]" Eric Tegtmeier, Matthew Janish, Andrew Richards, Matthew Schneider, [2020] · DOI: 10.2172/1688721
"In-situ re-crystallization of heavily-irradiated Gd2Ti2O7" Matthew M. Schneider, James A. Valdez, Kenneth J. McClellan, Darrin D. Byler, Yongqiang Wang, Di Chen, Terry G. Holesinger, Blas P. Uberuaga, Matthew T. Janish, [2020] Acta Materialia · DOI: 10.1016/j.actamat.2020.04.026
"Transmission Electron Microscopy and Electron Energy-Loss Spectroscopy Studies of Hole-Selective Molybdenum Oxide Contacts in Silicon Solar Cells" Céline Maynau, Luc Lajaunie, Geoffrey Gregory, Lijun Wu, John Patrick Looney, Yimei Zhu, Matthew Schneider, Winston V. Schoenfeld, Kristopher O. Davis, Haider Ali, [2019] ACS Applied Materials & Interfaces · DOI: 10.1021/acsami.9b12703 · ISSN: 1944-8244
"Carbon Nanotube Coated Conductors" Raymond Depaula, Pallas Papin, John Rowley, Matthew M. Schneider, Pouria Khanbolouki, Mehran Tehrani, Terry G. Holesinger, [2019] ACS Applied Electronic Materials · DOI: 10.1021/acsaelm.9b00356 · ISSN: 2637-6113
"Mapping Cation Disorder in Irradiated Gd2Ti2O7 Pyrochlore by 4D-STEM" Matthew M. Schneider, Colin Ophus, Jim Ciston, James A. Valdez, Kenneth J. McClellan, Darrin D. Byler, Di Chen, Yongqiang Wang, Terry G. Holesinger, Blas P. Uberuaga, Matthew T. Janish, [2019] Microscopy and Microanalysis · DOI: 10.1017/s1431927619008535 · ISSN: 1431-9276
"Response of 14YWT alloys under neutron irradiation: A complementary study on microstructure and mechanical properties" J.S. Weaver, U. Carvajal-Nunez, M.M. Schneider, J.G. Gigax, D.L. Krumwiede, P. Hosemann, T.A. Saleh, N.A. Mara, D.T. Hoelzer, B. Hilton, S.A. Maloy, E. Aydogan, [2019] Acta Materialia · DOI: 10.1016/j.actamat.2019.01.041
"Response of 14YWT alloys under neutron irradiation A complementary study on microstructure and mechanical properties" J.S. Weaver, U. Carvajal-Nunez, M.M. Schneider, J.G. Gigax, D.L. Krumwiede, P. Hosemann, T.A. Saleh, N.A. Mara, D.T. Hoelzer, B. Hilton, S.A. Maloy, E. Aydogan, [2019] Acta Materialia · DOI: 10.1016/j.actamat.2019.01.041
"Outstanding radiation resistance of tungsten-based high-entropy alloys" N. Li, M. Li, A. Devaraj, J. K. S. Baldwin, M. M. Schneider, D. Sobieraj, J. S. Wróbel, D. Nguyen-Manh, S. A. Maloy, E. Martinez, O. El-Atwani, [2019] Science Advances · DOI: 10.1126/sciadv.aav2002

Are high-entropy alloys the solution to radiation damage?
"Radiation Response and Recovery of Gd2Ti2Q7 Pyrochlore" Matthew M. Schneider, Cortney Kreller, James A. Valdez, Kenneth J. McClellan, Darrin D. Byler, Di Chen, Yongqiang Wang, Ming Tang, Terry G. Holesinger, Blas P. Uberuaga, Matthew T. Janish, [2018] Microscopy and Microanalysis · DOI: 10.1017/s1431927618010267 · ISSN: 1431-9276
"Transmission Electron Microscopy Studies of Transition Metal Oxides Employed as Carrier Selective Contacts in Silicon Solar Cells" James Bullock, Geoffrey Gregory, Xinbo Yang, Matthew Schneider, Klaus Weber, Ali Javey, Kristopher O. Davis, Haider Ali, [2018] 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC) · DOI: 10.1109/pvsc.2018.8547689
"Observation of interface dynamics and Cu island formation at a crystalline Si/liquid Al-alloy interface" James M. Howe, Matthew M. Schneider, [2017] Acta Materialia · DOI: 10.1016/j.actamat.2017.05.023 · ISSN: 1359-6454
"Atomistic study on the interaction of nitrogen and Mg lattice and the nitride formation in nanocrystalline Mg alloys synthesized using cryomilling process" Anit Giri, Clara Hofmeister, Kyu Cho, Matthew M. Schneider, Le Zhou, Yongho Sohn, Chang-Soo Kim, Marjan Nezafati, [2016] Acta Materialia · DOI: 10.1016/j.actamat.2016.06.012 · ISSN: 1359-6454
"Observation of a Metastable Cu Phase Formed at a Crystalline Si / Liquid Al-Alloy Interface in an Al-Cu-Mg-Si Alloy" Matthew M. Schneider, James M. Howe, [2016] Microscopy and Microanalysis · DOI: 10.1017/s1431927616007005 · ISSN: 1431-9276
"Study of Dynamic Solid-Liquid Interfacial Phenomena in Hypereutectic Al-Si Alloy Using in situ HRTEM" James M. Howe, Matthew M. Schneider, [2014] Microscopy and Microanalysis · DOI: 10.1017/s1431927614009921 · ISSN: 1431-9276
"Estimating the In-Plane Young's Modulus of Polycrystalline Films in MEMS" Hojin Kim, Matthew M. Schneider, Hao-Han Hsu, Dimitrios Peroulis, Eric A. Stach, Alejandro Strachan, Patrick R. Cantwell, [2012] Journal of Microelectromechanical Systems · DOI: 10.1109/jmems.2012.2191939 · ISSN: 1057-7157
"The Use of Polyethyleneimine to Control the Growth-Front Morphology of Electrochemically Deposited Gold Nanowires for Engineered Nanogap Electrodes" Matthew M. Schneider, Daniel S. Wood, Bong‐Joong Kim, Eric A. Stach, Timothy D. Sands, Manuel DaSilva, [2009] Small · DOI: 10.1002/smll.200900379 · ISSN: 1613-6810
Source: ORCID/CrossRef using DOI

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