Fabrication of Titanium Carbide Ceramics by High-Pressure Self-Combustion Sintering of Titanium Powder and Carbon Fiber

Titanium carbide ceramics have been fabricated from the reactants titanium powder and carbon fiber by the highpressure self‐combustion sintering method (HPCS) under two pressure conditions (65 MPa and 3 GPa). Porous TiC with a density of about 50% of theoretical was obtained under a pressure of 65 M...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 1989-05, Vol.72 (5), p.805-809
Main Authors: Adachi, Seiji, Wada, Takahiro, Mihara, Toshihiro, Miyamoto, Yoshinari, Koizumi, Mitsue, Yamada, Osamu
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Chemical industry and chemicals
Exact sciences and technology
fibers
powders
pressure
Refractory products
Special refractories
synthesis
titanium carbide
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Summary:Titanium carbide ceramics have been fabricated from the reactants titanium powder and carbon fiber by the highpressure self‐combustion sintering method (HPCS) under two pressure conditions (65 MPa and 3 GPa). Porous TiC with a density of about 50% of theoretical was obtained under a pressure of 65 MPa. A possible model accounting for the formation mechanism of TiC is proposed on the basis of observation of the microstructure of the products formed from the incomplete reaction. On the other hand, dense TiC (>95% of theoretical) was fabricated under 3 GPa. The mean grain size varied, depending on the mixing molar ratio of the reactants. The influence of differences in the carbon (powder and fiber forms) on the structure of TiC compacts is discussed.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1989.tb06221.x