Kyocera Corporation

Teppei Kayama

Masahito Nakanishi

Takehiro Oda

Nobuyuki Horiuchi

A boron carbide sintered body having a plurality of pores, comprises a boron carbide as a main component and a plurality of graphite particles dispersed in the sinter. The graphite particles is exposed to the pores or is in the vicinity of the pores.

Boron carbide sintered body and method of manufacturing the same and protective body

The compressive strength of a boron carbide sintered compact is improved by controlling crystals of the boron carbide to a polycrystalline structure having a grain size distribution in which coarse crystals with a grain size of 20 &#x3bc;m or more and fine crystals with a grain size of 10 &#x3bc;m or less are mixed in an appropriate ratio. Furthermore, a protective member having an improved compressive strength can be provided using the boron carbide sintered compact having a polycrystalline structure in which coarse crystals and fine crystals are mixed in an appropriate ratio or a boron carbide sintered compact containing graphite and silicon carbide.

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Kagoshima, Japan

Teppei Kayama