TiB2/Al2O3 composite coating prepared by the axial plasma spraying - 文章详情页

作者：

Cheng, Hanchi (Cheng, Hanchi.) | Li, Zhuoxin (Li, Zhuoxin.) | Li, Qilian (Li, Qilian.) | Li, Shuqing (Li, Shuqing.) | Shi, Yaowu (Shi, Yaowu.)

收录：

EI Scopus PKU CSCD

摘要：

Sprayable　feedstocks　were　prepared　by　spray-drying　and　using　alumina-30%　titanium　diboride　composite　powder　mixed　with　10%　nanoscale　alumina　powder　with　a　particle　size　of　80-200　nm,　and　a　titanium　diboride-alumina　composite　coating　was　deposited　by　axial-III　plasma　spraying　system.　The　coating　constitution　and　microstructure　were　analyzed　by　X-ray　diffraction,　scanning　electron　microcopy.　Microhardness　and　Rockwell　Hardness　were　tested　on　the　surface　of　the　coating.　Results　show　that　the　coating　consists　of　α-alumina,　γ-alumina,　titanium　diboride　and　a　small　amount　of　titania;　titanium　diboride　is　mostly　presented　with　particles　in　the　coatings.　The　average　superficial　Rockwell　hardness　of　as-sprayed　coating　is　52.9,　microhardness　of　TiB2　is　16.68　GPa.

关键词：

Alumina Ceramic coatings Composite coatings Microhardness Microstructure Particle size Plasma spraying Scanning electron microscopy Spray drying Sprayed coatings X ray diffraction analysis

作者机构：

[ 1 ] [Cheng, Hanchi]College of Material Science and Engineering, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Li, Zhuoxin]College of Material Science and Engineering, Beijing University of Technology, Beijing 100022, China
[ 3 ] [Li, Qilian]Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China
[ 4 ] [Li, Shuqing]Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China
[ 5 ] [Shi, Yaowu]College of Material Science and Engineering, Beijing University of Technology, Beijing 100022, China

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电子邮件地址：

chc@emails.bjut.edu.cn

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