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Influence of different coating structures on the oxidation resistance of MoSi2 coatings
Liu, L.1,2; Zhang, H. Q.1,2; Lei, H.1; Li, H. Q.3; Gong, J.1; Sun, C.1
Corresponding AuthorSun, C.(Csun@imr.ac.cn)
2020-04-01
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume46Issue:5Pages:5993-5997
AbstractTwo different structures of MoSi2 coatings were prepared on Niobium based alloys by using a two step process. The as-deposited type(a) MoSi2 coating structure consists of a MoSi2 layer on the surface and a NbSi2 layer underneath, while the type(b) MoSi2 coating consists of an outer MoSi2 layer and an inner unsiliconized Mo layer. The oxidation behaviors of the two different types MoSi2 coatings were examined at 1200 degrees C for 100 h in air, and the mass gains of type(a) and type(b) MoSi2 coated specimens were 0.64 mg/cm(2) and 0.59 mg/cm(2) respectively. The excellent oxidation resistance of both type(a) and type(b) MoSi2 coated samples at 1200 degrees C was due to the formation of a dense and continuous SiO2 scale during oxidation. As the CTE mismatch between the outer MoSi2 coating and the inner layer, cracks distributed within both type(a) and type(b) MoSi2 coating structures.
KeywordNiobium-based alloy Intermetallics Pack cementation Coating Oxidation resistance
DOI10.1016/j.ceramint.2019.11.055
Indexed BySCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000515196800056
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/137391
Collection中国科学院金属研究所
Corresponding AuthorSun, C.
Affiliation1.Chinese Acad Sci, Inst Met Res, 72Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 96 Jinzhai Rd, Hefei 230026, Peoples R China
3.China Acad Launch Vehicle Technol, Aerosp Res Inst Mat & Proc Technol, Beijing 100076, Peoples R China
Recommended Citation
GB/T 7714
Liu, L.,Zhang, H. Q.,Lei, H.,et al. Influence of different coating structures on the oxidation resistance of MoSi2 coatings[J]. CERAMICS INTERNATIONAL,2020,46(5):5993-5997.
APA Liu, L.,Zhang, H. Q.,Lei, H.,Li, H. Q.,Gong, J.,&Sun, C..(2020).Influence of different coating structures on the oxidation resistance of MoSi2 coatings.CERAMICS INTERNATIONAL,46(5),5993-5997.
MLA Liu, L.,et al."Influence of different coating structures on the oxidation resistance of MoSi2 coatings".CERAMICS INTERNATIONAL 46.5(2020):5993-5997.
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