Journal of Inorganic Materials

• Research Paper • Previous Articles     Next Articles

Plasma Spray Boron Carbide Coating

ZENG Yi; ZHANG Ye-Fang; HUANG Jing-Qi; XIA Ji-Yu; DING Chuan-Xian   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1998-02-16 Revised:1998-04-20 Published:1998-12-20 Online:1998-12-20

Abstract: The phase composition and microstructure of boron carbide coatings by plasma spray wereinvestigated through X-Rad, XPS and SEM. The porosity and microhardness of the coatings werealso measured. The results showed that The plasma spray boron carbide coatings by using theimproved F4-MB plasma gun under atmospheric pressure had the lower porosity 3%~4% and theclosed microhardness Hv>28GPa compared with the coatings obtained under up to 2kpa argonpressure.

Key words: plasma spray, boron carbide coating, porosity, microhardness

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