Title

TEM/EELS characterization of a sintered polycrystalline silicon carbide fiber

Authors

Authors

H. Tenailleau; X. Bourrat; R. Naslain; R. E. Tressler;L. A. Giannuzzi

Comments

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Abbreviated Journal Title

J. Am. Ceram. Soc.

Keywords

REACTION-MECHANISMS; CERAMIC FIBERS; HEAT-TREATMENT; SIC FIBERS; NICALON; RADIATION; Materials Science, Ceramics

Abstract

A sintered, polycrystalline SiC fiber has been characterized by TEM and EELS. The fibers consist primarily of alpha-SiC (6H-polytype) with a mean grain size on the order of approximately 1 mu m. Poorly organized turbostratic carbon is located within porous regions between some grain boundaries and triple junctions of the SiC. In addition, 100 nm spherical boron carbide precipitates are observed intra-granularly within the SiC grains. These precipitates have a rhombohedral crystal structure with an approximate stoichiometry of B4C.

Journal Title

Journal of the American Ceramic Society

Volume

81

Issue/Number

8

Publication Date

1-1-1998

Document Type

Article

Language

English

First Page

2037

Last Page

2044

WOS Identifier

WOS:000075368600006

ISSN

0002-7820

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