J111031 The basic study of Carbon Nitride coating to generate low friction under oil lubrication

2012 ◽  
Vol 2012 (0) ◽  
pp. _J111031-1-_J111031-4
Author(s):  
Kazuki SAKAKIBARA ◽  
Takayuki TOKOROYAMA ◽  
Kazuyoshi MANABE ◽  
Noritsugu UMEHARA ◽  
Yoshio FUWA
Author(s):  
Hiroshi Inoue ◽  
Takayuki Tokoroyama ◽  
Noritsugu Umehara ◽  
Shigeo Arai ◽  
Nobuo Tanaka

2017 ◽  
Vol 4 (24) ◽  
pp. 1700924 ◽  
Author(s):  
Špela Hajduk ◽  
Sean P. Berglund ◽  
Matejka Podlogar ◽  
Goran Dražić ◽  
Fatwa F. Abdi ◽  
...  

Author(s):  
Koshi Adachi ◽  
Naoya Sodeyama ◽  
Koji Kato

The effect of humidity on friction properties of carbon nitride (CNx) in nitrogen (N2) atmosphere were investigated by using a ball-on-disk tribo-tester in atmospheres with controlled humidity and oxygen concentration. It was concluded that friction coefficient in the combination of CNx/CNx and Si3N4/CNx in N2 gas atmosphere were reduced from the order of 0.1 to 0.01 by decreasing of humidity from 40% RH to 0% RH when the O2 concentration is kept below 100 ppm. Further, stability of low friction of CNx/CNx in N2 gas atmosphere was confirmed experimentally. The frictional pair of CNx/CNx provided low and a stable friction coefficient of 0.01 in 99.9% nitrogen gas condition under low relative humidity of 2% or less.


2019 ◽  
Vol 823 ◽  
pp. 9-14
Author(s):  
Yen Liang Su ◽  
Sun Hui Yao ◽  
Yu Chen Lai ◽  
Huang Ming Wu

This study aimed to understand the influence of small amount of Zr doping of amorphous carbonitride (a-CN) coatings on the structure, and mechanical and tribological behavior. The coatings were prepared using a four-target close-field unbalance magnetron sputtering system; two graphite, one Ti and one Zr targets were used. GDOS, SEM, XRD and XPS were used. A surface profilometer, a nanohardness tester, and a pin-on-disk wear tester were used. It was found the Zr doping resulting in the formation of ZrC and ZrN phases within the coating and the increase in the sp3 bonding fraction. The nanohardness was increased and the wear performance was largely improved.


Author(s):  
Tatsuya OKAMOTO ◽  
Hidenori NISHIMURA ◽  
Noritsugu UMEHARA ◽  
Motoyuki MURASHIMA ◽  
Takayuki TOKOROYAMA

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