The Korean Journal of Ceramics

The Korean Ceramic Society (한국세라믹학회)
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Preparation of Titanium Carbide Fiber-Reinforced Alumina Ceramic Matrix Composites by Self-Propagating High-Temperature Synthesis

  • Yun, Jondo (Department of Inorganic Materials Engineering and the Institute of Advanced Materials Kyungnam University) ;
  • Bang, Hwancheol (Department of Inorganic Materials Engineering and the Institute of Advanced Materials, Kyungnam University)
  • Published : 1998.09.01
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Abstract

$Al_2O_3$-TiC composites were prepared from aluminum, titanium oxide, and carbon fibers by self-propagating high-temperature synthesis(SHS). After the SHS reaction, the TiC phase in the sample was found either fibrous or non-fibrous shape. The fraction of the fibrous TiC phase varied with the amount of $Al_2O_3$ diluent addition. The optimum amount of diluent to make fibrous carbide was determined to be 30%. The fibers were hollow inside and made of multiple grains with a composition of titanium carbide. The hollow fiber formation mechanism was suggested and discussed. The synthesized powders were consolidated to dense composites by hot pressing at $1750^{\circ}C$ under 30 MPa.

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References

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