NSUF - Nuclear Science User Facilities

Gabriel Meric

Profile Information
Name
Dr Gabriel Meric
Institution
Kairos Power LLC
Affiliation
Kairos Power LLC
h-Index
8
ORCID
0000-0003-3302-1142
Biography

Dr. Meric de Bellefon is a Nuclear Materials Engineer in charge of irradiation testing, tribology testing, fuel characterization and quality control at Kairos Power. Previously he was an Assistant Scientist working in the Materials Science and Engineering Department in collaboration with the Grainger Institute for Engineering and Dr. Dan Thoma. He is interested in the use of metal additive manufacturing to fabricate functionally-graded materials for energy applications, and in the development of in situ monitoring techniques to better control microstructure development during metal additive manufacturing. Dr. Meric de Bellefon obtained a PhD in Nuclear Engineering from the University of Wisconsin – Madison in 2018, during which he focused on the development of nano-structured stainless steels for nuclear power applications. He was awarded the Department of Energy NEUP Graduate Fellowship in 2015. Dr. Meric de Bellefon graduated with an M.S. in Nuclear Engineering from University of California – Berkeley in 2009, and a B.S. in Physics from Ecole Polytechnique, France in 2008. 

Expertise
Additive Manufacturing, Electron Backscatter Diffraction, Graphite, Helium Embrittlement, IASCC, Molten Salt, Molten Salt Reactor (MSR), Neutron Diffraction, Nuclear Graphite, Pyrolitic Carbon (PyC), Silicon Carbide (SiC), Stainless Steel, Thermal Creep, Tribology, TRi-structural ISOtropic (TRISO) Particle Fuel, Void Swelling
Publications:
"Examining the influence of stacking fault width on deformation twinning in an austenitic stainless steel" Gabriel Meric, Maxim Gussev, Kumar Sridharan, Scripta Materialia Vol. 157 2018 162-166 Link
"Influence of Deformation Twins on the Radiation Response of 316 Austenitic Stainless!Steel" Gabriel Meric, Thesis Dissertation Vol. 2018 Link
"Radiation-resistant nanotwinned austenitic stainless steel" Gabriel Meric, I.M. Robertson, Todd Allen, Jean-Claude van Duysen, Kumar Sridharan, Scripta Materialia Vol. 159 2019 123-127 Link
A key strategy to increase the radiation resistance of materials has been to introduce a high density of interfaces that can act as sinks for radiation-induced defects. Twin boundaries are a type of interface that can be introduced through deformation but are usually considered to be ineffective sinks. Using heavy ion irradiation and transmission electron microscopy, this study investigates the influence of a high area per unit volume of twin boundaries on the radiation-induced swelling response of an austenitic stainless steel. The study shows that swelling can be suppressed in regions containing a high density of closely-spaced deformation twin boundaries.
Presentations:
"Ion irradiation for nuclear materials research at University of Wisconsin-Madison" Li He, Gabriel Meric, Kim Kriewaldt, Kumar Sridharan, Adrien Couet, Todd Allen, The 51st Symposium of the North Eastern Accelerator Personnel September 23-27, (2018)
"Void swelling suppression by deformation twins in austenitic stainless steels" Gabriel Meric, TMS 2018 March 11-15, (2018)
NSUF Articles:
U.S. DOE Nuclear Science User Facilities Awards 30 Rapid Turnaround Experiment Research Proposals - Awards total nearly $1.2 million The U.S. Department of Energy (DOE) Nuclear Science User Facilities (NSUF) has selected 30 new Rapid Turnaround Experiment (RTE) projects, totaling up to approximately $1.2 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, April 26, 2017 - Calls and Awards
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
From the Users Group: Vote for Your New Executive Committee - Election closes 10/31 The goal of the Users Group is to provide a formal and clear channel from the NSUF users to the NSUF program office as well as advocate for the experimental activities at NSUF, and the Executive Committee helps facilitate this. Wednesday, October 9, 2019 - Users Group, Newsletter
New Users Organization Executive Committee Members Announced - Their term will begin in January 2020 The Users Organization Executive Committee will work to advance NSUF user concerns and priorities. Tuesday, November 26, 2019 - Newsletter, Users Group
Four Consolidated Innovative Nuclear Research Proposals Awarded - Awards total approximately $2.2M Monday, June 20, 2022 - Calls and Awards

About Us

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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