Plasma sprayed aluminium nitride (AlN) coating: Microstructural, mechanical, tribological, and corrosion resistance performance

被引:5
作者
Indupuri, Satish [1 ]
Kumar, Rahul [1 ]
Prasad, Suraj [1 ]
Kumar, Krishnappagari Vijay [1 ]
Islam, Aminul [1 ]
Masoom, Sahil [1 ]
Pandey, Shailesh Mani [2 ]
Keshri, Anup Kumar [1 ]
机构
[1] Indian Inst Technol Patna, Plasma Spray Coating Lab, Met & Mat Engn, Bihta 801106, Bihar, India
[2] Natl Inst Technol Patna, Mech Engn, Patna 800005, Bihar, India
关键词
Aluminium nitride; Plasma spray coating; Mechanical properties; Tribological properties; Corrosion resistance; CARBON NANOTUBE; FABRICATION; POWDER;
D O I
10.1016/j.jeurceramsoc.2023.10.027
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In this work, oxide-free AlN coating was fabricated using single-step, large throughput nitrogen-shrouded plasma spraying. Initially, Al/AlN composite feedstock powder was prepared by a ball-milling at a 70:30 wt% ratio to deposit the AlN coating. Microstructural evaluation revealed the formation of dominant c-AlN phase along with minor h-AlN without presence of any oxides or impurities in the coating. Hardness and elastic modulus (E) were observed to be -7.2 GPa and -280 GPa respectively. Furthermore, an investigation of tribological performance showed the wear rate -0.18 x 10-3 mm3/Nm and coefficient of friction (COF) 0.45 +/- 0.02. In addition, the corrosion resistance behaviour of AlN coating in 3.5 wt% NaCl shows as low as 2.95 x 10-9 mm/s indicates the extended life of the coated components. Therefore, the fabricated plasma-sprayed AlN coating can be recommended for high-performing wear and anti-corrosive competitor for industrial applications.
引用
收藏
页码:1458 / 1469
页数:12
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