Effect of carbon ion irradiation on Ag diffusion in SiC
Leng, B; Ko, H; Gerczak, TJ; Deng, J; Giordani, AJ; Hunter, JL; Morgan, D; Szlufarska, I; Sridharan, K; Sridharan, K (reprint author), Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA.; Szlufarska, I (reprint author), Univ Wisconsin, Mat Sci & Engn Dept, Madison, WI 53706 USA.
2016
发表期刊JOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
卷号471期号:-页码:220—232
文章类型期刊文献
摘要Transport of Ag fission product through the silicon-carbide (SiC) diffusion barrier layer in TRISO fuel particles is of considerable interest given the application of this fuel type in high temperature gas-cooled reactor (HTGR) and other future reactor concepts. The reactor experiments indicate that radiation may play an important role in release of Ag; however so far the isolated effect of radiation on Ag diffusion has not been investigated in controlled laboratory experiments. In this study, we investigate the diffusion couples of Ag and polycrystalline 3C-SiC, as well as Ag and single crystalline 4H-SiC samples before and after irradiation with C2+ ions. The diffusion couple samples were exposed to temperatures of 1500 degrees C, 1535 degrees C, and 1569 degrees C, and the ensuing diffusion profiles were analyzed by secondary ion mass spectrometry (SIMS). Diffusion coefficients calculated from these measurements indicate that Ag diffusion was greatly enhanced by carbon irradiation due to a combined effect of radiation damage on diffusion and the presence of grain boundaries in polycrystalline SiC samples. (C) 2015 Elsevier B.V. All rights reserved.
关键词Radiation-enhanced Diffusion Cubic Silicon-carbide Amorphous Metallic Alloys Total-energy Calculations Grain-boundary Diffusion Triso Coated Particles Augmented-wave Method Fuel-particles Molecular-dynamics Ultrasoft Pseudopotentials
DOI10.1016/j.jnucmat.2015.11.017
收录类别SCI
语种英语
WOS记录号WOS:000371795400030
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/25694
专题中科院上海应用物理研究所2011-2018年
通讯作者Sridharan, K (reprint author), Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA.; Szlufarska, I (reprint author), Univ Wisconsin, Mat Sci & Engn Dept, Madison, WI 53706 USA.
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GB/T 7714
Leng, B,Ko, H,Gerczak, TJ,et al. Effect of carbon ion irradiation on Ag diffusion in SiC[J]. JOURNAL OF NUCLEAR MATERIALS,2016,471(-):220—232.
APA Leng, B.,Ko, H.,Gerczak, TJ.,Deng, J.,Giordani, AJ.,...&Szlufarska, I .(2016).Effect of carbon ion irradiation on Ag diffusion in SiC.JOURNAL OF NUCLEAR MATERIALS,471(-),220—232.
MLA Leng, B,et al."Effect of carbon ion irradiation on Ag diffusion in SiC".JOURNAL OF NUCLEAR MATERIALS 471.-(2016):220—232.
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