| Determination of interdiffusion coefficients of Si and Al in Ti3SiC2-Ti3AlC2 diffusion couple at 1373-1673 K | |
| Zhang, Zerong1,2; Yin, Xiaohui3; Qian, Yuhai1; Xu, Jingjun1; Zuo, Jun1; Li, Meishuan1 | |
| Corresponding Author | Yin, Xiaohui(xhyin@ahut.edu.cn) ; Qian, Yuhai(yhqain@imr.ac.cn) |
| 2019-08-27 | |
| Source Publication | JOURNAL OF THE AMERICAN CERAMIC SOCIETY
 |
| ISSN | 0002-7820 |
| Pages | 11 |
| Abstract | 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. |
| Keyword | activation energy decomposition interdiffusion coefficient MAX phase |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1111/jace.16723 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51375015] ; National Natural Science Foundation of China[51571203] ; National Natural Science Foundation of China[51571205] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Ceramics |
| WOS ID | WOS:000483976200001 |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/135121 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yin, Xiaohui; Qian, Yuhai |
| Affiliation | 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 |
| Recommended Citation 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. |
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