Electroless Ni-P Plating on Mullite Powders and Study of the Mechanical Properties of Its Plasma-Sprayed Coating

doi:10.3390/coatings12010018

	Electroless Ni-P Plating on Mullite Powders and Study of the Mechanical Properties of Its Plasma-Sprayed Coating
	Chen, Kaiwang 1,2; Zhang, Penglin 1,2; Sun, Pengfei 1,2; Niu, Xianming 2; Hu, Chunlian 2
刊名	COATINGS
	2022
卷号	12 期号:1
关键词	electroless plating plasma spraying mullite thermal cycle resistance
DOI	10.3390/coatings12010018
英文摘要	To effectively improve the properties of a mullite coating and its interfacial bonding with the substrate, a Ni-P layer is deposited on the surface of mullite powders by electroless plating. The original mullite powders and coated mullite powders are then deposited onto stainless-steel substrates by plasma spraying. The growth mechanism of the Ni-P layer during the plating, the microstructures of the coated powders and mullite coating and the properties of the mullite coatings are characterized and analyzed. The results indicate that the Ni-P layer on the surface of the mullite powder has cell structures with a dense uniform distribution and grows in layers on the surface of the mullite powder. The crystallization behavior of Ni-P amorphous layer is induced by heat treatment. Compared to the original mullite coating, the coating prepared by the coated mullite powders has better manufacturability, stronger adhesion to the substrate, lower porosity (7.40%, 65% of that of the original coating), higher hardness (500.1 HV, 1.2 times that of the original coating), and better thermal cycle resistance (two times that of the original coating). The method of preparation of high-temperature thermal barrier coatings with coated mullite powders has a high application value.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000746140900001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154896]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Chen, Kaiwang,Zhang, Penglin,Sun, Pengfei,et al. Electroless Ni-P Plating on Mullite Powders and Study of the Mechanical Properties of Its Plasma-Sprayed Coating[J]. COATINGS,2022,12(1).
APA	Chen, Kaiwang,Zhang, Penglin,Sun, Pengfei,Niu, Xianming,&Hu, Chunlian.(2022).Electroless Ni-P Plating on Mullite Powders and Study of the Mechanical Properties of Its Plasma-Sprayed Coating.COATINGS,12(1).
MLA	Chen, Kaiwang,et al."Electroless Ni-P Plating on Mullite Powders and Study of the Mechanical Properties of Its Plasma-Sprayed Coating".COATINGS 12.1(2022).