Utilizing the autocatalysis of Co to prepare low-cost WC-Co powder for high-performance atmospheric plasma spraying

doi:10.1111/jace.17192

	Utilizing the autocatalysis of Co to prepare low-cost WC-Co powder for high-performance atmospheric plasma spraying
	Zhang Lei 1,2; Yue Fen 2; Li Shaofu 2; Yang Yafeng 1,2
刊名	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
	2020-05-18
页码	10
关键词	ceramic-metal systems chemical vapor deposition coatings composites core-shell structures
ISSN号	0002-7820
DOI	10.1111/jace.17192
英文摘要	A 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.
资助项目	National Key Research and Development Program of China[2018YFB1105100] ; National Natural Science Foundation of China[51874271] ; Chinese Academy of Sciences[YJKYYQ20190011]
WOS关键词	TRIBOLOGICAL PROPERTIES ; COMPOSITE POWDERS ; COATINGS ; MICROSTRUCTURE ; BEHAVIOR
WOS研究方向	Materials Science
语种	英语
出版者	WILEY
WOS记录号	WOS:000533414000001
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/40447]
专题	中国科学院过程工程研究所
通讯作者	Yang Yafeng
作者单位	1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China
推荐引用方式 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.