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Effect of atomic oxygen irradiation on the structural and tribological characteristics of polytetrafluoroethylene and its composites
Author(s) -
Wang Xiangli,
Liu Baixing,
Zhang Guoheng,
Liu Liwei,
Chen Qiong,
Chen Wanjun,
Li Xiaoyong
Publication year - 2017
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6066
Subject(s) - polytetrafluoroethylene , tribology , tribometer , materials science , composite material , scanning electron microscope , irradiation , x ray photoelectron spectroscopy , oxygen , chemical engineering , chemistry , physics , organic chemistry , nuclear physics , engineering
Based on the ground‐based simulation facility, the effects of atomic oxygen (AO) irradiation on the structural and tribological properties of pure polytetrafluoroethylene (PTFE) and carbon fiber and MoS 2 ‐filled PTFE composites were studied by scanning electron microscopy, X‐ray photoelectron spectroscopy, and a ball‐on‐disc tribometer. The results shown that AO irradiation had significant effects on the structural and tribological properties of pure PTFE, in which the surface morphologies, mass loss, friction coefficient, and wear rate had been changed greatly after AO irradiation. However, it was noticeable that the addition of carbon fiber and MoS 2 filler to PTFE could improve the AO resist capacity and tribological properties of PTFE composites significantly. Copyright © 2016 John Wiley & Sons, Ltd.