Preparation and Properties of Zrb2 Composite Coatings by CVD

2018 4th International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Zhou, Lijuan^1 ; Yin, Kaili^1 ; Wang, Tianqi^2 ; Liao, Shengjun^1 ; Zhao, Yunxia^1

School of Materials Science and Engineering, Shandong University of Technology, ZiBo

255200, China^1

Four Prospecting Team of Shandong Coal Geology Bureau, Weifang

261000, China^2

关键词: Chemical vapour deposition;    Deposition layers;    Electrical conductivity;    High melting point;    Lower density;    Preparation method;    Silicon carbide substrates;    Zirconium boride;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/252/2/022101/pdf
DOI  :  10.1088/1755-1315/252/2/022101

来源: IOP

【 摘 要 】

ZrB2 has been attracted much attention for structural materials applications due to their unique combination of relative lower density, high melting point, high hardness, strong corrosion resistance, excellent thermal conductivity, good electrical conductivity and so on. However, the preparation of zirconium boride coating is difficult to realize. In this paper, zirconium boride was coated on the surface of the silicon carbide substrate by chemical vapour deposition (CVD). When the molar ratio of ZrCl4 to NaBH4 was 1:8, zirconium boride deposition layer was the densest. And the preparation methods, composition and microstructure of coating were investigated.