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The Production of Porous Si3N4 Ceramics with 100% β Phase

Published online by Cambridge University Press:  15 February 2011

Naruki Saito ,
K. Ishizaki  and
A. Kuzjukevics
Naruki Saito
Affiliation:
Nagaoka University of Technology, Department of Mechanical Engineering, Nagaoka, 940-21 Japan
K. Ishizaki
Affiliation:
Nagaoka University of Technology, Department of Mechanical Engineering, Nagaoka, 940-21 Japan
A. Kuzjukevics
Affiliation:
Institute of Inorganic Chemistry of the Latvian Academy of Sciences, Salaspils, Latvia
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Abstract

Porous silicon nitride ceramics with open porosity fraction of about 0.25 were obtained by capsule-free hot isostatic pressing from as-received and aqueous Soxlet washed powders. Particle surface modification by aqueous washing increases green density of cold isostatically pressed bodies and leads to a decrease in open pore fraction. At the same time, the α–β transition rate of the treated powder decreases.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 251: Symposium S – Pressure Effects on Materials Processing and Design , 1991 , 149
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCES

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