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High-strength porous silicon nitride fabricated by the sinter-forging technique

Published online by Cambridge University Press:  31 January 2011

Naoki Kondo ,
Yoshikazu Suzuki  and
Tatsuki Ohji
Naoki Kondo*
Affiliation:
National Industrial Research Institute of Nagoya, Shimo-shidami 2268-1, Moriyama-ku, Nagoya, 463-8687, Japan
Yoshikazu Suzuki
Affiliation:
National Industrial Research Institute of Nagoya, Shimo-shidami 2268-1, Moriyama-ku, Nagoya, 463-8687, Japan
Tatsuki Ohji
Affiliation:
National Industrial Research Institute of Nagoya, Shimo-shidami 2268-1, Moriyama-ku, Nagoya, 463-8687, Japan
*
a)Address all correspondence to this author. e-mail: nkondo@nirin.go.jp
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Abstract

Porous silicon nitride with aligned fibrous grains was fabricated by sinter-forging technique, where uniaxial pressure was applied to achieve a specific density after soaking at elevated temperatures. Fibrous silicon nitride grains were formed during the soaking, and the grains were aligned by the subsequent forging. As the result, a specimen with strongly aligned fibrous silicon nitride grains was successfully fabricated. The specimen with a relative density of 76% exhibited high bending strength of 778 MPa.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 1 , January 2001 , pp. 32 - 34
Copyright
Copyright © Materials Research Society 2001

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References

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