期刊
SURFACE & COATINGS TECHNOLOGY
卷 273, 期 -, 页码 20-29出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2015.03.030
关键词
Flame-spray coating technique; Polyether ether ketone (PEEK); Hexagonal boron nitride; Solid lubricant; Tribology
资金
- Rajamangala University of Technology Phra Nakhon
- National Nanotechnology Center (NANOTEC) [NN-B-22-CT3-21-52-07]
- Thailand Research Fund [RTA5580009]
- Office of the Higher Education Commission under the National Research Universities Program
Hexagonal boron nitride (h-BN) powder with different particle sizes and contents was incorporated in polyether ether ketone (PEEK) under ultrasonic conditions and deposited using flame-spray coating technique. Specific wear rate and friction coefficient of the h-BN/PEEK composite coatings were determined using a ball-on-disk sliding wear tester under applied loads of 5-25 N. Microstructure, microhardness, degree of crystallinity and surface roughness of the h-BN/PEEK composite coatings were investigated. The results showed that the microhardness and degree of crystallinity could be improved with h-BN particles. At an applied load of 5 N, the addition of h-BN particles into PEEK gave a lower specific wear rate. A higher content of h-EN added to PEEK coating resulted in a decrease in the friction coefficient. At an applied load of 25 N, 8 wt.% h-BN/PEEK composite coatings provided good friction reduction while the composite coatings formed severe wear with grooves. (C) 2015 Elsevier B.V. All rights reserved.
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