High temperature properties of amorphous borosilicon carbonitride

Eiji Kato; Kazuhiro Shioya; Yoshio Hasegawa; Yoshiki Morino

doi:10.14853/pcersj.2002F.0.170.0

15th Fall Meeting of The Ceramic Society of Japan

DOI https://doi.org/10.14853/pcersj.2002F.0.170.0

Conference information

Host: The Ceramic Society of Japan

High temperature properties of amorphous borosilicon carbonitride

Eiji Kato, Kazuhiro Shioya, Yoshio Hasegawa, Yoshiki Morino

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Keywords: Borosilicon carbonitride, Amorphous, Polyorganoborosilazane, Thermal resistance, Oxidation-resistance, Aerospace materials

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 170

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Abstract

Borosilicon carbonitrides were prepared by pylorysis of polyorganoborosilazanes synthesized by co-ammonolysis of various organochlorosilanes and borontrichloride. Amorphous borosilicon carbonitride stable at 1880°C was prepared by pyrolysis of SiMe₂Cl₂-based or SiHC₂H₅Cl₂-based polyorganoborosilazane. These prepared ceramics were not only thermally stable, but the oxidation resistance is also excellent at 1700°C in dry air and at 1500°C under reduced pressure.

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