Oxidation of SiC f /SiC‐HfB 2  Composites under Laser Heating | Zendy

Carney Carmen | Zendy; Leslie Clifford | Zendy; Jones Eric | Zendy

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Oxidation of SiC f /SiC‐HfB 2 Composites under Laser Heating

Author(s) -

Carney Carmen,

Leslie Clifford,

Jones Eric

Publication year - 2015

Publication title -

international journal of applied ceramic technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.4

H-Index - 57

eISSN - 1744-7402

pISSN - 1546-542X

DOI - 10.1111/ijac.12453

Subject(s) - materials science , composite material , ceramic , ceramic matrix composite , slurry , fiber , silicon carbide , laser , physics , optics

Ceramic matrix composites with Sylramic TM and CG Nicalon TM SiC fibers and SiC‐HfB 2 matrices derived from a combination of polymer‐derived SiC ceramic and HfB 2 particulate slurries were prepared. The composites were tested for oxidation resistance by laser heating at 2 MW/m 2 to achieve temperatures near 1600°C. The oxidation resistance was compared between uncoated CG Nicalon TM and BN ‐coated Sylramic TM fiber‐based composites. Oxidation resulted in precipitated nano‐sized HfO 2 independent of the fibers and fiber coatings.

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