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Textures in AiN-SiC Composite Ceramics

Published online by Cambridge University Press:  22 February 2011

Michael S. Sandlin  and
Keith J. Bowman
Michael S. Sandlin
Affiliation:
School of Materials Engineering, Purdue University, West Lafayette, IN 47907
Keith J. Bowman
Affiliation:
School of Materials Engineering, Purdue University, West Lafayette, IN 47907
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Abstract

Historically, texture analysis has been useful in explaining processing-induced property anisotropy in metals and deformation history in geological materials. Texture analysis, however, has not been fully utilized in explaining similar phenomena in ceramic systems. The scarcity of texture analysis in ceramic systems could conceivably stem from the classical conception that textures rarely develop in ceramic materials because of their lack of plasticity. While it is true that slip-based textures occur in only a limited number of ceramic systems, textures occur in a multitude of ceramic systems in which dislocation plasticity is not observed. The most prominent non-slip-based texture development mechanism in ceramic systems is grain rotation during processing. Other possible mechanisms for texture development in ceramics are seeded solid solution formation and oriented grain growth. These non-slip-based texture development mechanisms and other phenomena related to the measurement of textures in covalent ceramics are discussed in the context of the A1N-SiC system.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 327: Symposium N – Covalent Ceramics II: Non-Oxides , 1993 , 263
Copyright
Copyright © Materials Research Society 1994

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