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Hot pressing of SiC-TiC composites

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Abstract

Sintering behaviour during hot pressing of SiC-TiC composite ceramics has been investigated with special emphasis on the effect of various processing parameters on the density and mechanical properties of the sintered body. At hot pressing temperatures greater than 2000° C, significant densification occurred in SiC-50 wt%TiC (−0.5 wt%B-1 wt%C) composites. The room temperature flexural strength of the sintered body increased with the hot pressing temperature up to 2000° C and reached a highest value of 710 MPa in accordance to the variation of density with temperature. In sintering of composites without additives, densification was enhanced with the addition of up to 25 wt%TiC, with relative densities higher than 98% observed when hot pressing at 2150° C for 2h.

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Authors and Affiliations

  1. R&D Laboratories-I, Nippon Steel Corporation, 1618 Ida, Nakahara-ku, 211, Kawasaki, Japan

    H. Endo, M. Ueki & H. Kubo

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  1. H. Endo
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  2. M. Ueki
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  3. H. Kubo
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Endo, H., Ueki, M. & Kubo, H. Hot pressing of SiC-TiC composites. J Mater Sci 25, 2503–2506 (1990). https://doi.org/10.1007/BF00638050

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  • DOI: https://doi.org/10.1007/BF00638050

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