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A Surface Coating for Silicon Carbide Whiskers

Published online by Cambridge University Press:  01 February 2011

Heng. Zhang ,
T. D. Xiao ,
D. E. Reisner  and
P. Santiago
Heng. Zhang
Affiliation:
Inframat Corporation, 74 Batterson Park Road, Farmington, CT 06032, U.S.A.
T. D. Xiao
Affiliation:
Inframat Corporation, 74 Batterson Park Road, Farmington, CT 06032, U.S.A.
D. E. Reisner
Affiliation:
Inframat Corporation, 74 Batterson Park Road, Farmington, CT 06032, U.S.A.
P. Santiago
Affiliation:
Central Microscopy Research Facilities, Physics Institute, UNAM A.P. 20–364, C.P. 01000 04510, Mexico D.F., Mexico
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Abstract

A mullite coating process has been conducted to form an electrically insulating layer on the surface of the silicon carbide whiskers for whisker reinforcement application by a chemical deposition and hydrolysis. The phase, structure, morphology and electrically insulating property of the coated silicon carbide whiskers have been investigated by using x-ray diffraction, scanning electron microscopy, transmission electron microscopy and electrical measurement. The study indicates that a crystalline mullite coating layer is formed after heat-treating the precursor coating at elevated temperature. The formed mullite coating significantly increases the electrical resistance of the silicon carbide whiskers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 843: Symposium T – Surface Engineering-Fundamentals and Applications , 2004 , T3.32
Copyright
Copyright © Materials Research Society 2005

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References

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