Determination of interdiffusion coefficients of Si and Al in Ti3SiC2-Ti3AlC2 diffusion couple at 1373-1673 K

doi:10.1111/jace.16723

IMR OpenIR

	Determination of interdiffusion coefficients of Si and Al in Ti3SiC2-Ti3AlC2 diffusion couple at 1373-1673 K
	Zhang, Zerong 1,2; Yin, Xiaohui 3; Qian, Yuhai 1; Xu, Jingjun 1; Zuo, Jun 1; Li, Meishuan 1
通讯作者	Yin, Xiaohui(xhyin@ahut.edu.cn) ; Qian, Yuhai(yhqain@imr.ac.cn)
	2019-08-27
发表期刊	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN	0002-7820
页码	11
摘要	In the diffusion couple of Ti3SiC2 and Ti3AlC2, only interdiffusion of Si and Al occurred during diffusion treatment process. Based on the concentration profiles of Si and Al measured by electron probe microanalysis (EPMA), the interdiffusion coefficients of Si and Al at 1373-1673 K in Ti3SiC2-Ti3AlC2 diffusion couple were determined by both the Boltzmann-Matano (B-M) method and the Saucer-Freise (S-F) method. At the position of Matano plane with the composition of Ti3Al0.5Si0.5C2, the interdiffusion coefficient could be expressed as D-int (m(2)/s) = 5.6 x 10(-4).exp [-246 +/- 14 (kJ/mol)/RT]. Based on the two methods, the calculated interdiffusion coefficients increased with increasing temperature, and the magnitudes of their absolute values were on the order of 10(-13)-10(-11) m(2)/s at 1373-1673 K. At 1373-1573 K, the calculated interdiffusion coefficients decreased monotonously with the increase of Si concentration, that is, x(Si)/(x(Al) + x(Si)). But at 1673 K, the variation trend of interdiffusion coefficients with x(Si)/(x(Al) + x(Si)) was no longer monotonous, probably due to the presence of Ti5Si3 phase and voids on Ti3AlC2 side.
关键词	activation energy decomposition interdiffusion coefficient MAX phase
资助者	National Natural Science Foundation of China
DOI	10.1111/jace.16723
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51375015] ; National Natural Science Foundation of China[51571203] ; National Natural Science Foundation of China[51571205]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000483976200001
出版者	WILEY
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/135121
专题	中国科学院金属研究所
通讯作者	Yin, Xiaohui; Qian, Yuhai
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei, Anhui, Peoples R China 3.Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan 243002, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zerong,Yin, Xiaohui,Qian, Yuhai,et al. Determination of interdiffusion coefficients of Si and Al in Ti3SiC2-Ti3AlC2 diffusion couple at 1373-1673 K[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2019:11.
APA	Zhang, Zerong,Yin, Xiaohui,Qian, Yuhai,Xu, Jingjun,Zuo, Jun,&Li, Meishuan.(2019).Determination of interdiffusion coefficients of Si and Al in Ti3SiC2-Ti3AlC2 diffusion couple at 1373-1673 K.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,11.
MLA	Zhang, Zerong,et al."Determination of interdiffusion coefficients of Si and Al in Ti3SiC2-Ti3AlC2 diffusion couple at 1373-1673 K".JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2019):11.