Synthesis and Consolidation of Ternary Compound Ti3SiC2 from Green Compact of Mixed Powders

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  • Sun Zheng Ming
    National Institute of Advanced Industrial Science and Technology (AIST Tohoku)
  • Yang Songlan
    National Institute of Advanced Industrial Science and Technology (AIST Tohoku)
  • Hashimoto Hitoshi
    National Institute of Advanced Industrial Science and Technology (AIST Tohoku)
  • Tada Shuji
    National Institute of Advanced Industrial Science and Technology (AIST Tohoku)
  • Abe Toshihiko
    National Institute of Advanced Industrial Science and Technology (AIST Tohoku)

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タイトル別名
  • Synthesis and Consolidation of Ternary Compound Ti<SUB>3</SUB>SiC<SUB>2</SUB> from Green Compact of Mixed Powders

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Ternary compound Ti3SiC2 has been successfully synthesized and concurrently consolidated by sintering green compact of starting powder mixture. 3Ti/SiC/C powder mixture was compacted and heated in vacuum or in Ar atmosphere at temperatures from 1573 to 1773 K for a time period ranged from 2 to 6 hours. It has been found that either in vacuum or in Ar atmosphere the Ti3SiC2 content reached 100% in the surface layer. The growth of Ti3SiC2 in a layered manner on the surface of the sample was observed. It was also found that the sample sintered in Ar atmosphere is denser than those sintered in vacuum. After sintered in Ar atmosphere at 1773 K for 2 hours, the relative density of the compound reached 97%. Occurrence of liquid phase during sintering contributed to the densification of the compound.

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