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

文献类型：期刊论文

作者Zhang, Zerong1,2; Yin, Xiaohui3; Qian, Yuhai1; Xu, Jingjun1; Zuo, Jun1; Li, Meishuan1
刊名JOURNAL OF THE AMERICAN CERAMIC SOCIETY
出版日期2019-08-27
页码11
关键词activation energy decomposition interdiffusion coefficient MAX phase
ISSN号0002-7820
DOI10.1111/jace.16723
通讯作者Yin, Xiaohui(xhyin@ahut.edu.cn) ; Qian, Yuhai(yhqain@imr.ac.cn)
英文摘要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.
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
语种英语
WOS记录号WOS:000483976200001
出版者WILEY
资助机构National Natural Science Foundation of China
源URL[http://ir.imr.ac.cn/handle/321006/135120]  
专题金属研究所_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.

入库方式： OAI收割

来源：金属研究所

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