Diffusion of Ag, Au and Cs implants in MAX phase Ti3SiC2

doi:10.1016/j.jnucmat.2015.04.002

	Diffusion of Ag, Au and Cs implants in MAX phase Ti3SiC2
	Jiang, Weilin 2; Hanager, Charles H., Jr.2; Varga, Tamas 2; Jung, Hee Joon 2; Overman, Nicole R.2; Zhang, Chonghong1 ; Gou, Jie1
刊名	JOURNAL OF NUCLEAR MATERIALS
	2015-07-01
卷号	462 期号:462 页码:310-320
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2015.04.002
英文摘要	MAX phases (M: early transition metal; A: elements in group 13 or 14; X: C or N), such as titanium silicon carbide (Ti3SiC2), have a unique combination of both metallic and ceramic properties, which make them attractive for potential nuclear applications. Ti3SiC2 has been considered as a possible fuel cladding material. This study reports on the diffusivities of fission product surrogates (Ag and Cs) and a noble metal Au (with diffusion behavior similar to Ag) in this ternary compound at elevated temperatures, as well as in dual-phase nanocomposite of Ti3SiC2/3C-SiC and polycrystalline CVD 3C-SiC for behavior comparisons. Samples were implanted with Ag, Au or Cs ions and characterized with various methods, including X-ray diffraction, electron backscatter diffraction, energy dispersive X-ray spectroscopy, Rutherford backscattering spectrometry, helium ion microscopy, and transmission electron microscopy. The results show that in contrast to immobile Ag in 3C-SiC, there is a significant outward diffusion of Ag in Ti3SiC2 within the dual-phase nanocomposite during Ag ion implantation at 873 K. Similar behavior of Au in polycrystalline Ti3SiC2 was also observed. Cs out-diffusion and release from Ti3SiC2 occurred during post-implantation thermal annealing at 973 K. This study suggests caution and further studies in consideration of Ti3SiC2 as a fuel cladding material for advanced nuclear reactors operating at very high temperatures. (C) 2015 Elsevier B.V. All rights reserved.
资助项目	NEET program from Office of Nuclear Energy, U.S. Department of Energy (DOE)[DE-AC05-76RL01830] ; DOE's Office of Biological and Environmental Research
WOS关键词	GAS-COOLED REACTORS ; SILICON-CARBIDE ; FUEL-PARTICLES ; TEMPERATURE-RANGE ; BEHAVIOR ; MECHANISMS ; OXIDATION ; SILVER ; AIR ; IRRADIATION
WOS研究方向	Materials Science ; Nuclear Science & Technology ; Mining & Mineral Processing
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000357545900036
资助机构	NEET program from Office of Nuclear Energy, U.S. Department of Energy (DOE) ; DOE's Office of Biological and Environmental Research
内容类型	期刊论文
源URL	[http://ir.impcas.ac.cn/handle/113462/14976]
专题	近代物理研究所_材料研究中心近代物理研究所_能源材料研究组
通讯作者	Jiang, Weilin
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou, Peoples R China 2.Pacific NW Natl Lab, Richland, WA 99352 USA
推荐引用方式 GB/T 7714	Jiang, Weilin,Hanager, Charles H., Jr.,Varga, Tamas,et al. Diffusion of Ag, Au and Cs implants in MAX phase Ti3SiC2[J]. JOURNAL OF NUCLEAR MATERIALS,2015,462(462):310-320.
APA	Jiang, Weilin.,Hanager, Charles H., Jr..,Varga, Tamas.,Jung, Hee Joon.,Overman, Nicole R..,...&Gou, Jie.(2015).Diffusion of Ag, Au and Cs implants in MAX phase Ti3SiC2.JOURNAL OF NUCLEAR MATERIALS,462(462),310-320.
MLA	Jiang, Weilin,et al."Diffusion of Ag, Au and Cs implants in MAX phase Ti3SiC2".JOURNAL OF NUCLEAR MATERIALS 462.462(2015):310-320.