Stable and super-low friction of amorphous carbon nitride coatings in nitrogen gas by using two-step ball-on-disk friction test

2014 ◽  
Vol 27 (3) ◽  
pp. 137-149 ◽  
Author(s):  
Pengfei Wang ◽  
Masakatsu Sugo ◽  
Koshi Adachi
Keyword(s):  
Amorphous Carbon ◽  
Carbon Nitride ◽  
Friction Test ◽  
Low Friction ◽  
Nitrogen Gas ◽  
Nitride Coatings ◽  
Disk Friction ◽  
Amorphous Carbon Nitride

Structural, mechanical and tribological behavior of fullerene-like and amorphous carbon nitride coatings

2004 ◽  
Vol 13 (10) ◽  
pp. 1882-1888 ◽  
Author(s):  
J. Neidhardt ◽  
L. Hultman ◽  
E. Broitman ◽  
T.W. Scharf ◽  
I.L. Singer
Keyword(s):  
Amorphous Carbon ◽  
Carbon Nitride ◽  
Tribological Behavior ◽  
Nitride Coatings ◽  
Amorphous Carbon Nitride

Effect of Humidity on Friction of Carbon Nitride Coatings Under N2 Gas Lubrication

2005 ◽  
Author(s):  
Koshi Adachi ◽  
Naoya Sodeyama ◽  
Koji Kato
Keyword(s):  
Friction Coefficient ◽  
Relative Humidity ◽  
Carbon Nitride ◽  
Frictional Pair ◽  
Low Friction ◽  
Nitrogen Gas ◽  
N2 Atmosphere ◽  
Gas Atmosphere ◽  
O2 Concentration ◽  
Nitride Coatings

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.

Composition, structure and tribological properties of amorphous carbon nitride coatings

1994 ◽  
Vol 68-69 ◽  
pp. 611-615 ◽  
Author(s):  
Dong Li ◽  
Eric Cutiongco ◽  
Yip-Wah Chung ◽  
Ming-Show Wong ◽  
William D. Sproul
Keyword(s):  
Amorphous Carbon ◽  
Tribological Properties ◽  
Carbon Nitride ◽  
Nitride Coatings ◽  
Amorphous Carbon Nitride ◽  
Composition Structure

SYNTHESIS AND MECHANICAL PROPERTIES OF CRYSTALLINE CARBON NITRIDE SUPERHARD COATINGS

1996 ◽  
Vol 03 (04) ◽  
pp. 1597-1602 ◽  
Author(s):  
YIP-WAH CHUNG
Keyword(s):  
Mechanical Properties ◽  
Amorphous Carbon ◽  
Carbon Nitride ◽  
Composite Coatings ◽  
Processing Conditions ◽  
Nitride Coatings ◽  
Amorphous Carbon Nitride ◽  
Deposition Techniques ◽  
Superhard Coatings ◽  
Made In

Crystalline β- C 3 N 4 was predicted to have mechanical properties similar to those of diamond. Until recently, only amorphous carbon nitride coatings were made in spite of numerous attempts. This lack of success in making crystalline coatings suggests that β- C 3 N 4 is metastable. Using TiN as seeding layers and under proper processing conditions, we were able to synthesize fully crystalline carbon nitride composite coatings with hardness in the 45–55 GPa range, which is at the low end of diamond. Suggestions for further improvements and implementation with other deposition techniques will be made.

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