Pressureless sintering of boron carbide ceramics

Takeshi KUMAZAWA; Toru HONDA; You ZHOU; Hiroyuki MIYAZAKI; Hideki HYUGA; Yu-ichi YOSHIZAWA

doi:10.2109/jcersj2.116.1319

Journal of the Ceramic Society of Japan

Online ISSN : 1348-6535
Print ISSN : 1882-0743
ISSN-L : 1348-6535

Express letters

Pressureless sintering of boron carbide ceramics

Takeshi KUMAZAWA, Toru HONDA, You ZHOU, Hiroyuki MIYAZAKI, Hideki HYUGA, Yu-ichi YOSHIZAWA

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Keywords: Boron carbide, Pressureless sintering, Bulk density, Compound gas, Secondary phase

JOURNAL FREE ACCESS

2008 Volume 116 Issue 1360 Pages 1319-1321

DOI https://doi.org/10.2109/jcersj2.116.1319

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Abstract

Densification of boron carbide (B₄C) was studied by pressureless sintering at temperatures ranging from 2108° to 2226°C with Al gas and Si compound gas derived from SiC. High purity boron carbide compacts attained a bulk density of a nearly full density (2.455 g/cm³) after being sintered at 2226°C.

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