Superplasticity of liquid-phase-sintered β-SiC with Al2O3-Y2O3-AlN additions in an N2 atmosphere

Takayuki Nagano, Kenji Kaneko, Guo Dong Zhan, Mamoru Mitomo

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25 Citations (Scopus)


Compression and tension tests were performed on liquid-phase-sintered β-SiC fabricated by hot-pressing, using ultrafine powders, at 1973-2048 K in an N2 atmosphere. Amorphous phases were observed at the grain boundaries and at multigrain junctions in the as-sintered material. Strain hardening was observed under all experimental conditions. Stress exponents in the compression test were 1.7-2.1 in the temperature range 1973-2023 K. A maximum tensile elongation of 170% was achieved at the initial strain rate of 2×10-5 s-1 at 2048 K.

Original languageEnglish
Pages (from-to)2497-2502
Number of pages6
JournalJournal of the American Ceramic Society
Issue number10
Publication statusPublished - 2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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