Tribochemistry of contact interfaces of nanocrystalline molybdenum carbide films
作者： D. Dinesh Kumar , N. Kumar , Kalpataru Panda , A.M. Kamalan Kirubaharan , P. Kuppusami
DOI: 10.1016/J.APSUSC.2018.04.042
关键词:
摘要: Abstract Transition metal carbides (TMC) are known for their improved tribological properties and sensitive to the tribo-atmospheric environment. Nanocrystalline molybdenum carbide (MoC) thin films were deposited by DC magnetron sputtering technique using reactive CH4 gas. The friction wear resistance of MoC significantly in humid-atmospheric condition as compared high-vacuum tribo-condition. A comprehensive chemical analysis deformed contact interfaces was carried out X-ray photoelectron spectroscopy (XPS), energy dispersive (EDX) Raman spectroscopy. XPS showed formation stable molybdenum-oxide (MoO), amorphous carbon (a-C) tribo-phases. Moreover, during sliding condition, these phases extensively on steel ball counter body which protected against undesirable wear.
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