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典型文献
In-situ synthesis,microstructure,and properties of NbB2-NbC-Al2O3 composite coatings by plasma spraying
文献摘要：
The high melting point and strong chemical bonding of NbB2 pose a great challenge to the preparation of high-density nanostructured NbB2 composite coating.Herein,we report a novel,simple,and efficient method to fabricate in-situ NbB2-NbC-Al2O3 composite coating by plasma spraying Nb2O5-B4C-Al composite powder,aiming at realizing the higher densification and ultra-fine microstructure of NbB2 composite coating.The microstructure and properties of in-situ NbB2-NbC-Al2O3 composite coating were studied comparatively with ex-situ NbB2-NbC-Al2O3 composite coating(plasma spraying NbB2-NbC-A12O3 composite powder).The reaction mechanism of Nb2O5-B4C-Al composite powder in plasma jet was analyzed in detail.The results showed that the in-situ nanostructured NbB2-NbC-A12O3 composite coating presented a lower porosity and superior performance including higher microhardness,toughness and wear resistance compared to the plasma sprayed ex-situ NbB2-NbC-A12O3 coating and other boride composite coatings.Densification of the in-situ NbB2-NbC-Al2O3 coating was attributed to the low melting point of Nb2O5-B4C-Al composite powder and the exothermic effect of in-situ reaction.The superior performance was ascribed to the density improvement and the strengthening and toughening effect of the nanosized phases.The in-situ reaction path could be expressed as:Nb2O5+Al → Nb+Al2O3,and Nb+B4C → NbB2+NbC.
文献关键词：
中图分类号：
[1] 医药、卫生（R） / 基础医学（R3） / 病理学（R36） / 病理过程（R364）
[2] 医药、卫生（R） / 药学（R9） / 药理学（R96） / 实验药理学（R965）
[3] 数理科学和化学（O） / 力学（O3） / 振动理论（O32） / 非线性振动（O322）
作者姓名：
Xiaolong WANG;Yong YANG;Shitong JIA;Yanwei WANG;Yuduo MA;Yuhang CUI;Xingyu WANG;Wenwei SUN;Liang WANG
作者机构：
Key Lab.for New Type of Functional Materials in Hebei Province,School of Materials Science and Engineering,State Key Laboratory of Reliability and Intelligence of Electrical Equipment,Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology,Hebei University of Technology,Tianjin 300401,China;Integrated Computational Materials Research Centre,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China
文献出处：
先进陶瓷（英文版）
引用格式：
[1]Xiaolong WANG;Yong YANG;Shitong JIA;Yanwei WANG;Yuduo MA;Yuhang CUI;Xingyu WANG;Wenwei SUN;Liang WANG-.In-situ synthesis,microstructure,and properties of NbB2-NbC-Al2O3 composite coatings by plasma spraying)[J].先进陶瓷（英文版）,2022(08):1263-1278
A类：
NbB2,Densification,Nb2O5+Al,Nb+Al2O3,Nb+B4C,NbB2+NbC
B类：
In,situ,synthesis,microstructure,properties,composite,coatings,by,plasma,spraying,melting,point,strong,chemical,bonding,pose,great,challenge,preparation,density,nanostructured,Herein,report,novel,simple,efficient,method,fabricate,powder,aiming,realizing,higher,densification,ultra,fine,were,studied,comparatively,A12O3,reaction,mechanism,jet,was,analyzed,detail,results,showed,that,presented,lower,porosity,superior,performance,including,microhardness,toughness,wear,resistance,compared,sprayed,boride,attributed,exothermic,effect,ascribed,improvement,strengthening,toughening,nanosized,phases,path,could,expressed
AB值：
0.346524
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