In-situ reaction synthesis and mechanical properties of quaternary MAX phase (Cr2/3Ti1/3)(3)AlC2

doi:10.1016/j.ceramint.2020.06.055

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	In-situ reaction synthesis and mechanical properties of quaternary MAX phase (Cr2/3Ti1/3)(3)AlC2
	Liu, Zhimou 1; Yang, Jia 2; Qian, Yuhai 1; Xu, Jingjun 1; Zuo, Jun 1; Li, Meishuan 1
刊名	CERAMICS INTERNATIONAL
	2020-10-01
卷号	46 期号:14 页码:22854-22860
关键词	Quaternary MAX Phase (Cr2/3Ti1/3)(3)AlC2 Reaction route Mechanical property
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2020.06.055
通讯作者	Qian, Yuhai(yhqian@imr.ac.cn) ; Li, Meishuan(mshli@imr.ac.cn)
英文摘要	Bulk quaternary MAX phase (Cr2/3Ti1/3)(3)AlC2 was synthesized by in-situ reaction/hot pressing method using Cr, Ti, Al, and C powders as starting materials. The involved reaction routes during hot-pressing were determined according to XRD and SEM/EDS analysis results. The possible chemical reactions involved during hot pressing process were proposed. It was revealed that the desired (Cr2/3Ti1/3)(3)AlC2 was formed via the reaction between intermediate products of ternary MAX Cr2AlC and carbide TiC, providing another path for the preparation of high order MAX phase. Tests of mechanical properties suggested that the Vickers hardness of (Cr2/3Ti1/3)(3)AlC2 was 5.6 GPa, higher than that of the ternary MAX phase Ti3AlC2. Its flexural and compressive strength were determined to be 493 MPa and 1407 MPa at room temperature, respectively. Flexural strength maintained a relatively high level of 424 MPa up to 1000 degrees C, about 90% of that at room temperature. The dependence of elastic modulus on increasing temperatures exhibited similar tendency to that of flexural strength. The as-synthesized (Cr2/3Ti1/3)(3)AlC2, a unique quaternary layered nano-laminated carbide, was a promising high temperature structural material with its attractively comprehensive properties.
资助项目	National Natural Science Foundation of China, China[51271191] ; National Natural Science Foundation of China, China[51571205]
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000558707400110
资助机构	National Natural Science Foundation of China, China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/140252]
专题	金属研究所_中国科学院金属研究所
通讯作者	Qian, Yuhai; Li, Meishuan
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Hunan Univ Technol, Sch Mech Engn, Zhuzhou 412007, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zhimou,Yang, Jia,Qian, Yuhai,et al. In-situ reaction synthesis and mechanical properties of quaternary MAX phase (Cr2/3Ti1/3)(3)AlC2[J]. CERAMICS INTERNATIONAL,2020,46(14):22854-22860.
APA	Liu, Zhimou,Yang, Jia,Qian, Yuhai,Xu, Jingjun,Zuo, Jun,&Li, Meishuan.(2020).In-situ reaction synthesis and mechanical properties of quaternary MAX phase (Cr2/3Ti1/3)(3)AlC2.CERAMICS INTERNATIONAL,46(14),22854-22860.
MLA	Liu, Zhimou,et al."In-situ reaction synthesis and mechanical properties of quaternary MAX phase (Cr2/3Ti1/3)(3)AlC2".CERAMICS INTERNATIONAL 46.14(2020):22854-22860.