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Utilizing the autocatalysis of Co to prepare low-cost WC-Co powder for high-performance atmospheric plasma spraying
Zhang Lei1,2; Yue Fen1; Li Shaofu1; Yang Yafeng1,2
2020-05-18
Source PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
Pages10
AbstractA novel method of incorporating fluidized bed chemical vapor deposition (FBCVD) with electroless plating was developed to effectively prepare the core-shell structured WC-Co composite powders. The Co nanoparticles decorated on the surface of WC particles by FBCVD acted as active catalysts for the subsequent electroless plating process. The particle size and quantity of the decorated Co particles determined the electroless plating rate but the particle size played more important role. For the conditions tested, the maximum electroless plating rate of 2.34 mg/g/min was obtained by using an optimal FBCVD pretreatment at 750 degrees C for 3 minutes. WC-12Co composite powders with a commercial composition widely used for atmospheric plasma spraying (APS) were efficiently prepared. The composite powders exhibited excellent suitability for APS by forming a homogenous Co-W-C ternary liquid stream. The APS coating is not only well-bonded with the substrate but also consisted of hard nonequilibrium Co3W3C and W2C phases with a uniform distribution. Both remarkably improved the hardness and tribological properties of the APS coating.
Keywordceramic-metal systems chemical vapor deposition coatings composites core-shell structures
DOI10.1111/jace.17192
Language英语
WOS KeywordTRIBOLOGICAL PROPERTIES ; COMPOSITE POWDERS ; COATINGS ; MICROSTRUCTURE ; BEHAVIOR
Funding ProjectNational Key Research and Development Program of China[2018YFB1105100] ; National Natural Science Foundation of China[51874271] ; Chinese Academy of Sciences[YJKYYQ20190011]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences
WOS IDWOS:000533414000001
PublisherWILEY
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/40448
Collection中国科学院过程工程研究所
Corresponding AuthorYang Yafeng
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Zhang Lei,Yue Fen,Li Shaofu,et al. Utilizing the autocatalysis of Co to prepare low-cost WC-Co powder for high-performance atmospheric plasma spraying[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2020:10.
APA Zhang Lei,Yue Fen,Li Shaofu,&Yang Yafeng.(2020).Utilizing the autocatalysis of Co to prepare low-cost WC-Co powder for high-performance atmospheric plasma spraying.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,10.
MLA Zhang Lei,et al."Utilizing the autocatalysis of Co to prepare low-cost WC-Co powder for high-performance atmospheric plasma spraying".JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2020):10.
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