Morphological and physical properties and friction/wear behavior of h-BN filled PEEK composite coatings
Journal article
Authors/Editors
Strategic Research Themes
No matching items found.
Publication Details
Author list: Tharajak J., Palathai T., Sombatsompop N.
Publisher: Elsevier
Publication year: 2015
Journal: Surface and Coatings Technology (0257-8972)
Volume number: 273
Issue number: 1
Start page: 20
End page: 29
Number of pages: 10
ISSN: 0257-8972
eISSN: 1879-3347
Languages: English-Great Britain (EN-GB)
View in Web of Science | View on publisher site | View citing articles in Web of Science
Abstract
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-BN 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. ฉ 2015 Elsevier B.V.
Keywords
Flame-spray coating technique, Polyether ether ketone (PEEK), Solid lubricant
Contact Information