한국분말재료학회지 (Journal of Powder Materials)

  • 제29권5호
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  • Pages.424-431
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  • 2022
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  • 2799-8525(pISSN)
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  • 2799-8681(eISSN)
한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
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3Y-TZP/WC 복합체의 소결 방식에 따른 특성비교

Comparison of Properties with Different Sintering Process of 3Y-TZP/WC Composites

  • 남민수 (한국세라믹기술원 이천분원 엔지니어링소재센터) ;
  • 최재형 (한국세라믹기술원 이천분원 엔지니어링소재센터) ;
  • 남산 (고려대학교 신소재공학과) ;
  • 김성원 (한국세라믹기술원 이천분원 엔지니어링소재센터)
  • Nam, Min-Soo (Engineering Materials Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Choi, Jae-Hyung (Engineering Materials Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Nahm, Sahn (Department of Materials Science and Engineering, Korea University) ;
  • Kim, Seongwon (Engineering Materials Center, Korea Institute of Ceramic Engineering and Technology)
  • 투고 : 2022.10.14
  • 심사 : 2022.10.24
  • 발행 : 2022.10.28
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초록

3Y-TZP ceramics obtained by doping 3 mol.% of Y2O3 to ZrO2 to stabilize the phase transition are widely used in the engineering ceramic industry due to their excellent mechanical properties such as high strength, fracture toughness, and wear resistance. An additional increase in mechanical properties is possible by manufacturing a composite in which a high-hardness material such as oxide or carbide is added to the 3Y-TZP matrix. In this study, composite powder was prepared by dispersing a designated percentage of WC in the 3Y-TZP matrix, and the results were compared after manufacturing the composite using the different processes of spark plasma sintering and HP. The difference between the densification behavior and porosity with the process mechanism was investigated. The correlation between the process conditions and phase formation was examined based on the crystalline phase formation behavior. Changes to the microstructure according to the process conditions were compared using field-emission scanning electron microscopy. The toughness-strengthening mechanism of the composite with densification and phase formation was also investigated.

키워드

과제정보

본 연구는 산업통상자원부의 소재부품기술개발사업의 30 ㎛급 비드밀용 고인성 세라믹 부품 개발(과제번호: 20011007)의 연구비 지원으로 수행되었으며 이에 감사드립니다.

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