한국산업융합학회 논문집 (Journal of the Korean Society of Industry Convergence)

한국산업융합학회 (The Korean Society of Industry Convergence)
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액상소결 탄화규소 세라믹스의 제조 및 고온기계적 특성

Fabrication and High-temerature Mechanical Property of Liquid-Phase-Sintered SiC

  • 이문희 (동의과학대학교 기계계열) ;
  • 김성원 (동의과학대학교 기계계열) ;
  • 이종호 (동의과학대학교 자동차계열) ;
  • 황승국 (한국폴리텍대학 창원캠퍼스 기계시스템과) ;
  • 곽재환 (동의대학교 기계공학과) ;
  • 이진경 (동의대학교 기계공학과) ;
  • 이상필 (동의대학교 기계공학과)
  • Lee, Moonhee (Division of Mechanical Engineering, Dong-Eui Institute of Technology) ;
  • Kim, Sungwon (Division of Mechanical Engineering, Dong-Eui Institute of Technology) ;
  • Lee, Jongho (Division of Automotive Engineering, Dong-Eui Institute of Technology) ;
  • Hwang, SeungKuk (Dept. of mechanical system, Changwon Campus Korea Polytechnics) ;
  • Gwak, Jaehwan (Dept. of Mechanical Engineering, Dong-Eui university) ;
  • Lee, Jinkyung (Dept. of Mechanical Engineering, Dong-Eui university) ;
  • Lee, Sangpill (Dept. of Mechanical Engineering, Dong-Eui university)
  • 투고 : 2020.06.23
  • 심사 : 2020.07.17
  • 발행 : 2020.08.31
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초록

Liquid-phase-sintered (LPS) SiC materials were briefly examined with their microstructure and mechanical property. Especially, effect of high-temperature exposure on the tendency of fracture toughness of LPS-SiC were introduced. The LPS-SiC was fabricated in hot-press by sintering powder mixture of sub-micron SiC and sintering additives of Al2O3-Y2O3. LPS-SiC represented dense morphology and SiC grain-growth with some amount of micro-pores and clustered additives as pore-filling. The strength of LPS-SiC might affected by distribution of micro-pores. LPS-SiC tended to decrease fracture toughness depending on increasing exposure temperature and time.

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참고문헌

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