MnxCo3-xO4 spinel coatings: Controlled synthesis and high temperature oxidation resistance behavior

doi:10.1016/j.ceramint.2019.11.032

CORC > 金属研究所 > 中国科学院金属研究所

	MnxCo3-xO4 spinel coatings: Controlled synthesis and high temperature oxidation resistance behavior
	Shen, Zhengjun 1; Rong, Ju 1,2; Yu, Xiaohua 1
刊名	CERAMICS INTERNATIONAL
	2020-04-01
卷号	46 期号:5 页码:5821-5827
关键词	Solid oxide fuel cell Interconnect Controllable phase composition MnxCo3-xO4 coating Oxidation resistance
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2019.11.032
通讯作者	Rong, Ju(JRong_kmust@163.com)
英文摘要	A controllable method for the synthesis of MnxCo3-xO4 (x = 0.4, 0.8, 1.0, 1.2) spinel coatings with unique microstructures and high-temperature oxidation resistances for solid oxide fuel cells is crucially desired. Herein, we report the synthesis and analysis of synthesized coatings with different phase compositions of ferritic stainless steel interconnects. The coatings are fabricated using a sol-gel dip-coating method. Multiple experimental results confirm that the Mn(x)Co(3-x)O(4 )coatings exhibit the advantages of having fine grains and uniform density. Furthermore, the as-prepared Mn1.2Co1.8O4 coating has a low coefficient of thermal expansion (11.98 x 10(-6) K-1), matching that of ferritic stainless steel, which effectively improves the anti-stripping property of the materials. In particular, oxidation tests illustrate that the oxidation weight gain of this coating decreased by 84.4% compared with bare ferritic stainless steel after 3600 h. The area-specific resistance (ASR) results indicate that the ASR value of the Mn1.2Co1.8O4-coated sample reduced by about 70% compared with those of the ferritic stainless steel samples, which demonstrates its desirable high-temperature oxidation resistance property. It is hoped that this work stimulates new research ideas for the development of spinel oxide coating.
资助项目	National Natural Science Foundation of China[51764029] ; National Natural Science Foundation of China[51665022] ; National Natural Science Foundation of China[51601081] ; National Natural Science Foundation of China[51801086] ; Yunnan Natural Science Foundation[2018FB087] ; China Postdoctoral Science Foundation[2018M643533]
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000515196800036
资助机构	National Natural Science Foundation of China ; Yunnan Natural Science Foundation ; China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/137470]
专题	金属研究所_中国科学院金属研究所
通讯作者	Rong, Ju
作者单位	1.Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Shen, Zhengjun,Rong, Ju,Yu, Xiaohua. MnxCo3-xO4 spinel coatings: Controlled synthesis and high temperature oxidation resistance behavior[J]. CERAMICS INTERNATIONAL,2020,46(5):5821-5827.
APA	Shen, Zhengjun,Rong, Ju,&Yu, Xiaohua.(2020).MnxCo3-xO4 spinel coatings: Controlled synthesis and high temperature oxidation resistance behavior.CERAMICS INTERNATIONAL,46(5),5821-5827.
MLA	Shen, Zhengjun,et al."MnxCo3-xO4 spinel coatings: Controlled synthesis and high temperature oxidation resistance behavior".CERAMICS INTERNATIONAL 46.5(2020):5821-5827.