Self-Lubrication Mechanism of Plasma-Sprayed Cr2O3-Ag Nanocomposite Coatings at Room to Moderate Temperatures

2021 ◽  
Author(s):  
Ehsan Sadri ◽  
Fakhreddin Ashrafizadeh
Keyword(s):  
Nanocomposite Coatings ◽  
Lubrication Mechanism ◽  
Plasma Sprayed

Preparation and Tribological Property of Plasma Sprayed Adaptive Ni-Mo-Al-Ag-BN Composite Coating

2017 ◽  
Vol 739 ◽  
pp. 30-35
Author(s):  
Jian Liang Li ◽  
Hang Li ◽  
Dang Sheng Xiong ◽  
Yu Juan Ji ◽  
Yong Kun Qin
Keyword(s):  
High Temperature ◽  
Composite Coating ◽  
Tribological Property ◽  
Lubrication Mechanism ◽  
Wear Rates ◽  
Mechanism Model ◽  
Wide Range ◽  
Plasma Sprayed ◽  
Scanning Electron ◽  
Lubrication Mechanisms

In this paper an adaptive Ni-Mo-Al-Ag-BN composite coating was deposited by plasmaspraying. Its tribological property from 20°C-600°C were evaluated by using high temperature tribometer. Scanning electron microscopy and Raman spectroscopy were used to characterize the coating and corresponding wear tracks to determine the lubrication mechanisms. The result shows that the friction coefficient of the Ni-Mo-Al–Ag-BN composite coating from 200°C to 400°C is about 0.4 and declines very slightly at 600°C . The wear rates of the coating is 2.0×10-4mm3/N*m at 600°C and the downward trend is obvious compared with 400°C. Silver provide lubrication below 400 °C. Ag2MoO4 were formed with the temperature raised, and acted as high-temperature lubricants above 400 °C. Ni-Mo-Al–Ag-BN composite coating established a new lubrication mechanism model at 600°C . It can be concluded that the plasma sprayed Ni-Mo-Al - Ag - BN composite coating can keep good tribological property at wide range of temperature.

A Study of Plasma-Sprayed Nanocomposite Coatings Based on Magnesium-Substituted Tricalcium Phosphate

2018 ◽  
Vol 54 (3) ◽  
pp. 389-392
Author(s):  
A. V. Lyasnikova ◽  
I. P. Grishina ◽  
O. A. Dudareva ◽  
O. A. Markelova ◽  
V. N. Lyasnikov
Keyword(s):  
Tricalcium Phosphate ◽  
Nanocomposite Coatings ◽  
Plasma Sprayed

Thermal shock properties and failure mechanism of plasma sprayed Al2O3/TiO2 nanocomposite coatings

2005 ◽  
Vol 31 (6) ◽  
pp. 817-824 ◽  
Author(s):  
Chang-sheng Zhai ◽  
Jun Wang ◽  
Fei Li ◽  
Jing-chao Tao ◽  
Yi Yang ◽  
...  
Keyword(s):  
Thermal Shock ◽  
Failure Mechanism ◽  
Nanocomposite Coatings ◽  
Plasma Sprayed

Abrasive Wear Analysis of Plasma-Sprayed LaCeYSZ Nanocomposite Coatings Using Experimental Design and ANN

2014 ◽  
Vol 57 (5) ◽  
pp. 919-927 ◽  
Author(s):  
S. Mantry ◽  
B. B. Jha ◽  
A. Mandal ◽  
M. Chakraborty ◽  
B. K. Mishra
Keyword(s):  
Experimental Design ◽  
Abrasive Wear ◽  
Nanocomposite Coatings ◽  
Wear Analysis ◽  
Plasma Sprayed
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