Protection of graphite from salt and gas permeation in molten salt reactors

JJ Lee, JD Arregui-Mena, CI Contescu… - Journal of Nuclear …, 2020 - Elsevier
The reactor core, moderator and reflectors of a thermal spectrum advanced molten salt
reactor will constitute multi-tons of graphite. Porous reactor-grade graphite, if unprotected …

A review of research progress of graphite oxidation in high temperature gas-cooled reactors

X Zhang, F Sun, G Xiong, W Xu, M Ding - Nuclear Engineering and Design, 2024 - Elsevier
Abstract (Very) High temperature gas-cooled reactors (HTGRs) are one of the 4th-
generation nuclear reactors with high inherent safety. They use graphite materials as …

Effect of microstructure and temperature on nuclear graphite oxidation using the 3D Random Pore Model

RM Paul, JD Arregui-Mena, CI Contescu, NC Gallego - Carbon, 2022 - Elsevier
This work compared the 3D Random Pore Model (3D-RPM) with experimental and
characterization data to systematically study the effect of nuclear graphite microstructure and …

Infiltration of molten fluoride salts in graphite: Phenomenology and engineering considerations for reactor operations and waste disposal

L Vergari, M Nelson, A Droster, C Contescu… - Journal of Nuclear …, 2022 - Elsevier
The possibility and consequences of salt-infiltration in graphite must be evaluated for
graphite used in molten salt reactors (MSRs) and fluoride-salt-cooled high-temperature …

The US Department of Energy's high temperature reactor research and development program–Progress as of 2019

HD Gougar, DA Petti, PA Demkowicz… - … Engineering and Design, 2020 - Elsevier
The modular high temperature reactor is a leading candidate for near-term deployment of an
advanced reactor concept. The US Department of Energy supports the development of high …

Determining the acute oxidation behavior of several nuclear graphite grades

RE Smith, JJ Kane, WE Windes - Journal of Nuclear Materials, 2021 - Elsevier
The acute oxidation behaviors for a number of nuclear graphite grades pertinent to gas-
cooled high-temperature reactor (HTR) designs are compared using established American …

On the thermal oxidation of nuclear graphite relevant to high-temperature gas cooled reactors

RM Paul, CI Contescu, NC Gallego, R Smith… - Journal of Nuclear …, 2023 - Elsevier
Thermal oxidation of nuclear graphite components is highly undesirable because it can
cause structural and property degradation that negatively affect a reactor's intended …

Determination of oxidation rates and volatile oxidation products for HTGR graphite matrix material exposed to steam atmospheres

BA Brigham, KI Montoya, TJ Gerczak… - Journal of Nuclear …, 2021 - Elsevier
High-temperature gas-cooled reactors (HTGRs) in operation use tristructural isotropic
(TRISO) particles embedded in graphite and carbonized resin matrix to form the fuel …

Oxidation behaviors of matrix-grade graphite during water vapor ingress accidents for high temperature gas-cooled reactors

YJ Cho, D Garcia, ZY Hang, Z Deng, L Li, K Lu - Carbon, 2021 - Elsevier
Water ingress into cores of high temperature gas-cooled reactors (HTGRs) can cause
serious safety problems in graphitic components, especially for matrix graphite, which is …

The advanced reactor technologies (art) graphite R&D program

WE Windes, TD Burchell, M Davenport - Nuclear Engineering and Design, 2020 - Elsevier
Abstract The USA DOE Advanced Reactor Technologies (ART) graphite R&D program
supporting HTR design is one of the longest running nuclear graphite R&D programs …