Effect of carbon ion irradiation on Ag diffusion in SiC

doi:10.1016/j.jnucmat.2015.11.017

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	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
ISSN	0022-3115
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
DOI	10.1016/j.jnucmat.2015.11.017
收录类别	SCI
语种	英语
WOS记录号	WOS:000371795400030
引用统计
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.
推荐引用方式 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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