Thermal Expansion and Thermal Expansion Anisotropy of SiC Polytypes
- 1 July 1987
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 70 (7) , 445-448
- https://doi.org/10.1111/j.1151-2916.1987.tb05673.x
Abstract
The principal axial coefficients of thermal expansion for the (3C), (4H), and (6H) polytypes of SiC are considered to identify the structural role of the stacking layer sequence as it affects the thermal expansion. A general equation based on the fractions of cubic and hexagonal layer stacking is developed that expresses the principal axial thermal expansion coefficients of all of the SiC polytypes. It is then applied to address the thermal expansion anisotropy of the noncubic SiC structures.Keywords
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