Effect of graphene on the microstructure, mechanical properties, and wear behavior of plasma-sprayed Al2O3-Cr2O3 coating

被引：2

作者：

Gou, Junfeng ^{[1
]}

Guo, Jinbao ^{[1
]}

Zhu, Jieyu ^{[1
]}

Yao, Jiawen ^{[1
]}

Li, Dongyang ^{[2
]}

Wang, You ^{[3
]}

Liu, Jiangwen ^{[4
,6
]}

Yang, Yang ^{[5
,7
]}

机构：

[1] Guangdong Univ Technol, Guangdong Prov Key Lab Adv Mfg Technol Marine Ener, Guangzhou, Peoples R China

[2] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB, Canada

[3] Harbin Inst Technol, Sch Mat Sci & Engn, Dept Mat Sci, Harbin, Peoples R China

[4] Guangdong Univ Technol, State Key Lab Precis Elect Mfg Technol & Equipment, Guangzhou, Peoples R China

[5] Anhui Univ Technol, Res Ctr Modern Surface & Interface Engn, Key Lab Green Fabricat & Surface Technol Adv Met M, Minist Educ, Maanshan, Peoples R China

[6] Guangdong Univ Technol, State Key Lab Precis Elect Mfg Technol & Equipment, Guangzhou 510006, Peoples R China

[7] Anhui Univ Technol, Res Ctr Modern Surface & Interface Engn, Key Lab Green Fabricat & Surface Technol Adv Met M, Minist Educ, Maanshan 243002, Peoples R China

来源：

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2024年 / 21卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Al2O3-Cr2O3; coating; graphene nanosheets; wear mechanism; wear resistance; THERMAL BARRIER COATINGS; ABRASIVE WEAR; ALUMINA; COMPOSITE; FRICTION; RESISTANCE; GRAPHITE;

D O I：

10.1111/ijac.14562

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 study, plasma-sprayed Al2O3-Cr2O3 coatings with different contents of graphene nanosheets were prepared for investigating effects of the graphene on microstructure, mechanical properties, and wear behavior of the coating. The experimental results showed that graphene increased the porosity and the microhardness of the coating. But excessive graphene decreased the microhardness remarkably. Besides, the anti-crack initiation and propagation abilities of the coatings with graphene improved significantly. The wear rate of the coatings decreased first, and then increased with increasing the graphene content. Impressively, the wear rates of the coating with 2.9% graphene decreased by 33.5% and 36.7%, compared with those of the coating without graphene under normal loads of 5 and 15 N, respectively. The main wear mechanisms of the coatings with and without graphene are brittle fracture and abrasive wear.

引用

页码：861 / 875

页数：15

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