Excellent oxidation resistance of rapidly crystallizing Cr2AlC coatings at high temperatures: Effect of microstructure

doi:10.1016/j.jeurceramsoc.2024.04.027

IMR OpenIR

	Excellent oxidation resistance of rapidly crystallizing Cr2AlC coatings at high temperatures: Effect of microstructure
	Li, Yang 1,2; Zhang, Yi 1,2; Yang, Zhibin 1,2; Ma, Ke 2; Xu, Jingjun 1,2; Li, Jingjing 3; Li, Yueming 4; Zuo, Jun 2; Li, Meishuan 1,2
通讯作者	Xu, Jingjun(jjxu@imr.ac.cn) ; Li, Jingjing(jjli@alum.imr.ac.cn)
	2024-09-01
发表期刊	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN	0955-2219
卷号	44 期号:11 页码:6343-6355
摘要	Two kinds of Cr2AlC coatings with different microstructures were prepared by direct crystallization during oxidation at 1000 degrees C and conventional crystallization at 700 degrees C for 1 h for amorphous Cr-Al-C coatings prepared by magnetron sputtering, respectively. The effect of microstructure on the oxidation behavior of the coatings at 1000 degrees C was investigated. The grain boundary density and dislocation density of the Cr2AlC coatings crystallized directly during oxidation were much higher, which provided much more sites for heterogeneous nucleation of alpha-Al2O3 and fast diffusion paths for Al. Therefore, the coating formed complete pure alpha-Al2O3 scales earlier with better antioxidant properties. More importantly, the present work demonstrates feasibility and advantages of directly applying amorphous Cr-Al-C coatings at high temperatures without additional crystallization treatments, which simplifies preparation process of Cr2AlC coatings, facilitates their industrial applications, and provides a new method for rapid preparation of MAX-phase coatings.
关键词	Cr2AlC Microstructure High-temperature oxidation MAX phase Crystallization
资助者	National Natural Science Foundation of China ; Science and Technology on Advanced Functional Composites Laboratory
DOI	10.1016/j.jeurceramsoc.2024.04.027
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52071318] ; National Natural Science Foundation of China[52001011] ; Science and Technology on Advanced Functional Composites Laboratory[6142906210305]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:001240019000001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：1[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/321006/187000
专题	中国科学院金属研究所
通讯作者	Xu, Jingjun; Li, Jingjing
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Shenyang Ligong Univ, Sch Mat Sci & Engn, Shenyang 110159, Peoples R China 4.Dongguan Univ Technol, Dongguan 523808, Peoples R China
推荐引用方式 GB/T 7714	Li, Yang,Zhang, Yi,Yang, Zhibin,et al. Excellent oxidation resistance of rapidly crystallizing Cr2AlC coatings at high temperatures: Effect of microstructure[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2024,44(11):6343-6355.
APA	Li, Yang.,Zhang, Yi.,Yang, Zhibin.,Ma, Ke.,Xu, Jingjun.,...&Li, Meishuan.(2024).Excellent oxidation resistance of rapidly crystallizing Cr2AlC coatings at high temperatures: Effect of microstructure.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,44(11),6343-6355.
MLA	Li, Yang,et al."Excellent oxidation resistance of rapidly crystallizing Cr2AlC coatings at high temperatures: Effect of microstructure".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 44.11(2024):6343-6355.