Microstructure and wear performance of alumina/graphene coating on textured Al2O3/TiC substrate composites

被引：22
|
作者：
Liu, Changxia [1 ,2 ]
Sun, Junlong [1 ,2 ]
Venturi, Federico [2 ]
Romero, Acacio Rincon [2 ]
Hussain, Tanvir [2 ]
机构：
[1] Ludong Univ, Sch Transportat, Yantai 264025, Shandong, Peoples R China
[2] Univ Nottingham, Fac Engn, Nottingham NG7 2RD, England
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2021年 / 41卷 / 02期
基金：
英国工程与自然科学研究理事会; 中国国家自然科学基金;
关键词：
SHVOF; Graphene nanoplatelets; Al2O3/TiC substrate composites; Wear performance; Micro texture; LASER-INDUCED OXIDATION; TRIBOLOGICAL PROPERTIES; MECHANICAL-PROPERTIES; GRAPHENE; BEHAVIOR; TITANIUM; TIO2; TOOL; FRICTION; FABRICATION;
D O I：
10.1016/j.jeurceramsoc.2020.09.063
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：
The incorporation of graphene-based nanodispersoids in ceramic coatings is known to enhance the wear behavior of these materials. In this study, for the first time, alumina/graphene nanoplatelets (GNPs) coatings were deposited through Suspension High Velocity Oxy-Fuel (SHVOF) thermal spray on Al2O3/TiC substrate composites, which were laser microtextured with grid and line surface patterns. Dense coatings with around 8-10 mu m thickness were obtained by spraying alumina suspension containing 1 wt. % GNPs. The tribological performance of the alumina/GNPs coatings on the Al2O3/TiC substrate composites was evaluated using ball-on-disc sliding wear tests. The alumina/GNPs coated Al2O3/TiC substrate composites textured with grid pattern showed the best tribological performance reaching a steady coefficient of friction (CoF) at lower sliding distances and presenting the lowest wear rate of the Al2O3/TiC substrate composites and the counterbody.
引用
收藏
页码：1438 / 1451
页数：14
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