S116025 Clarification of mechanism and Control techniques about droplets of the CNx coating by ion beam assisted deposition
Year: 2012
Type: article
Abstract: It has been reported that the carbon nitride (CNx) coating was the super-low friction in which friction was less than 0.01, and it attracts attention as a wear resistance and low friction material. When forming a CNx coating with Ion Beam Assisted Deposition (IBAD), it turns out that to obtain coating thickness higher than 1 mm, deposition time should be long, then surface roughness became large with several size droplets. So, in this research, to clarify the effect of electron beam power to generate droplets, we varied 5 different filament current to irradiate electron beam to carbon target. As a result, the droplet height decreased with reduction of filament current density. In the case of friction tests of CNx coating which were high amount of droplet one and low one were carried out in PAO lubrication condition, the average friction coefficient of high amount of droplet showed around 0.075, on the other hand, the average friction coefficient of low amount of droplet showed 0.059.
Authors: Yuji YAGI, Takayuki TOKOROYAMA, Hiroyuki KOUSAKA, Noritsugu UMEHARA, Yoshio FUWA, Kazuyoshi MANABE
Institution: Nagoya University
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2400533170