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Title: Irradiation-induced effects of proton irradiation on zirconium carbides with different stoichiometries

Abstract

Zirconium carbide (ZrC) is being considered for utilization in deep burn TRISO fuel particles for hightemperature, gas-cooled reactors. Zirconium carbide has a cubic B1 type crystal structure along with a very high melting point (3420 ?C), exceptional hardness and good thermal and electrical conductivities. Understanding the ZrC irradiation response is crucial for establishing ZrC as an alternative component in TRISO fuel. Until now, very few studies on irradiation effects on ZrC have been released and fundamental aspects of defect evolution and kinetics are not well understood although some atomistic simulations and phenomenological studies have been performed. This work was carried out to understand the damage evolution in float-zone refined ZrC with different stoichiometries. Proton irradiations at 800 ?C up to doses of 3 dpa were performed on ZrCx (where x ranges from 0.9 to 1.2) to investigate the damage evolution. The irradiation-induced defects, such as density of dislocation loops, at different stoichiometries and doses which were characterized by transmission electron microscopy (TEM) is presented and discussed.

Authors:
; ;
Publication Date:
Research Org.:
Idaho National Laboratory (INL)
Sponsoring Org.:
DOE - NE
OSTI Identifier:
1162221
Report Number(s):
INL/JOU-14-33533
Journal ID: ISSN 0029-5493
DOE Contract Number:  
DE-AC07-05ID14517
Resource Type:
Journal Article
Journal Name:
Nuclear Engineering and Design
Additional Journal Information:
Journal Volume: 227; Journal ID: ISSN 0029-5493
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; Zirconium Carbide

Citation Formats

Y. Huang, B.R. Maier, and T.R. Allen. Irradiation-induced effects of proton irradiation on zirconium carbides with different stoichiometries. United States: N. p., 2014. Web. doi:10.1016/j.nucengdes.2014.06.001.
Y. Huang, B.R. Maier, & T.R. Allen. Irradiation-induced effects of proton irradiation on zirconium carbides with different stoichiometries. United States. doi:10.1016/j.nucengdes.2014.06.001.
Y. Huang, B.R. Maier, and T.R. Allen. Wed . "Irradiation-induced effects of proton irradiation on zirconium carbides with different stoichiometries". United States. doi:10.1016/j.nucengdes.2014.06.001.
@article{osti_1162221,
title = {Irradiation-induced effects of proton irradiation on zirconium carbides with different stoichiometries},
author = {Y. Huang and B.R. Maier and T.R. Allen},
abstractNote = {Zirconium carbide (ZrC) is being considered for utilization in deep burn TRISO fuel particles for hightemperature, gas-cooled reactors. Zirconium carbide has a cubic B1 type crystal structure along with a very high melting point (3420 ?C), exceptional hardness and good thermal and electrical conductivities. Understanding the ZrC irradiation response is crucial for establishing ZrC as an alternative component in TRISO fuel. Until now, very few studies on irradiation effects on ZrC have been released and fundamental aspects of defect evolution and kinetics are not well understood although some atomistic simulations and phenomenological studies have been performed. This work was carried out to understand the damage evolution in float-zone refined ZrC with different stoichiometries. Proton irradiations at 800 ?C up to doses of 3 dpa were performed on ZrCx (where x ranges from 0.9 to 1.2) to investigate the damage evolution. The irradiation-induced defects, such as density of dislocation loops, at different stoichiometries and doses which were characterized by transmission electron microscopy (TEM) is presented and discussed.},
doi = {10.1016/j.nucengdes.2014.06.001},
journal = {Nuclear Engineering and Design},
issn = {0029-5493},
number = ,
volume = 227,
place = {United States},
year = {2014},
month = {10}
}