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Some physical properties of an Al2O3-SiC-TiC composite

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Abstract

Ceramic samples obtained by hot pressing from a mixture of Al2O3 with admixtures of 23 vol.% TiC powder and 30.9 vol.% SiC whisker crystals are investigated experimentally. The resistivity of the material is measured at temperatures of 4.2–300 K, the infrared reflection spectra are recorded in the region 400–4200 cm–1, and the temperature dependence of the Young’s modulus is investigated at temperatures up to 1300 K. As a result it is it is shown that the conductivity and optical reflection of the high-strength composite have a semimetallic character, which is due to the titanium carbide particles contained in it.

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Authors and Affiliations

  1. A. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg

    B. I. Smirnov, V. I. Nikolaev & Yu. A. Burenkov

  2. Argonne National Laboratory, Argonne, Illinois, 60439-4838, USA

    J. L. Routbort & K. C. Goretta

Authors
  1. B. I. Smirnov
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  2. V. I. Nikolaev
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  3. Yu. A. Burenkov
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  4. J. L. Routbort
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  5. K. C. Goretta
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Additional information

Pis’ma Zh. Tekh. Fiz. 23, 52–58 (December 12, 1997)

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Smirnov, B.I., Nikolaev, V.I., Burenkov, Y.A. et al. Some physical properties of an Al2O3-SiC-TiC composite. Tech. Phys. Lett. 23, 923–926 (1997). https://doi.org/10.1134/1.1261934

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  • DOI: https://doi.org/10.1134/1.1261934

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