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The Effect of Glass Chemistry on the Microstructub and Properties of Self Reinforced Silicon Nitride

Published online by Cambridge University Press:  25 February 2011

Aleksander J. Pyzik ,
Daniel F. Carroll  and
C. James Hwang
Aleksander J. Pyzik
Affiliation:
The Dow Chemical Company, Central Research & Development, Advanced Ceramics Laboratory, Midland, MI 48674
Daniel F. Carroll
Affiliation:
The Dow Chemical Company, Central Research & Development, Advanced Ceramics Laboratory, Midland, MI 48674
C. James Hwang
Affiliation:
The Dow Chemical Company, Central Research & Development, Advanced Ceramics Laboratory, Midland, MI 48674
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Abstract

The advantage of self-reinforced silicon nitride is the in-situ control of the microstructure. This control is provided in large degree by the chemistry of glassy phase which can be adjusted to tailor the morphology of silicon nitride grains as well as the matrix - reinforcement interface. The presence of high aspect ratio silicon nitride grains is necessary but not sufficient condition to produce materials with optimum properties. For maximum flexure strength and fracture toughness an optimized glass matrix is required.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 287: Symposium K – Silicon Nitride Ceramics–Scientific and Technological Advances , 1992 , 411
Copyright
Copyright © Materials Research Society 1993

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References

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