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MnxCo3-xO4 spinel coatings: Controlled synthesis and high temperature oxidation resistance behavior
Shen, Zhengjun1; Rong, Ju1,2; Yu, Xiaohua1
Corresponding AuthorRong, Ju(JRong_kmust@163.com)
2020-04-01
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume46Issue:5Pages:5821-5827
AbstractA 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.
KeywordSolid oxide fuel cell Interconnect Controllable phase composition MnxCo3-xO4 coating Oxidation resistance
Funding OrganizationNational Natural Science Foundation of China ; Yunnan Natural Science Foundation ; China Postdoctoral Science Foundation
DOI10.1016/j.ceramint.2019.11.032
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000515196800036
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/137474
Collection中国科学院金属研究所
Corresponding AuthorRong, Ju
Affiliation1.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
Recommended Citation
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.
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