Thickness-dependent phase evolution and bonding strength of SiC ceramics joints with active Ti interlayer

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2017专题

	Thickness-dependent phase evolution and bonding strength of SiC ceramics joints with active Ti interlayer
	Zhou, Xiaobing; Yang, Hui; Shi, Wen; Wang, Ji; Li, Peng; Chen, Fanyan; Deng, Qihuang; Lee, Jaehyung; Han, Young-Hwan; Huang, Feng
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2017
卷号	37 期号:4 页码:1233-1241
ISSN号	0955-2219
英文摘要	A robust solid state diffusion joining technique for SiC ceramics was designed with a thickness-controlled Ti interlayer formed by physical vapor deposition and joined by electric field-assisted sintering technology. The interface reaction and phase revolution process were investigated in terms of the equilibrium phase diagram and the concentration-dependent potential diagram of the Ti-Si-C ternary system. Interestingly, under the same joining conditions (fixed temperature and annealing duration), the thickness of the Ti interlayer determined the concentration and distribution of the Si and C reactants in the resulting joint layer, and the respective diffusion distance of Si and C into the Ti interlayer differentiated dramatically during the short joining process (only 5 min). In the case of a 100 nm Ti coating as an interlayer, the C concentration in the joint layer was saturated quickly, which benefited the formation of a TiC phase and subsequent Ti3SiC2 phase. The SiC ceramics were successfully joined at a low temperature of 1000 degrees C with a flexural strength of 168.2 MPa, which satisfies applications in corrosive environments. When the Ti thickness was increased to 1 mu m, Si atoms diffused easily through the diluted Ti-C alloy (a dense TiC phase was not formed), and the Ti5Si3 brittle phase formed preferentially. These findings highlight the importance of the diffusion kinetics of the reactants on the final composition in the solid state reaction, particularly in the joining technique for covalent SiC ceramics. (C) 2016 Elsevier Ltd. All rights reserved.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13908]
专题	2017专题
推荐引用方式 GB/T 7714	Zhou, Xiaobing,Yang, Hui,Shi, Wen,et al. Thickness-dependent phase evolution and bonding strength of SiC ceramics joints with active Ti interlayer[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2017,37(4):1233-1241.
APA	Zhou, Xiaobing.,Yang, Hui.,Shi, Wen.,Wang, Ji.,Li, Peng.,...&Huang, Qing.(2017).Thickness-dependent phase evolution and bonding strength of SiC ceramics joints with active Ti interlayer.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,37(4),1233-1241.
MLA	Zhou, Xiaobing,et al."Thickness-dependent phase evolution and bonding strength of SiC ceramics joints with active Ti interlayer".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 37.4(2017):1233-1241.