한국분말재료학회지 (Journal of Powder Materials)

  • 제28권6호
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  • Pages.502-508
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  • 2021
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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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SiAlON계 절삭공구 소재의 특성 비교

A Comparative Study on Characteristics of Cutting Tool Materials Based on SiAlON Ceramics

  • 김성원 (한국세라믹기술원 이천분원 엔지니어링세라믹센터) ;
  • 최재형 (한국세라믹기술원 이천분원 엔지니어링세라믹센터)
  • Kim, Seongwon (Engineering Ceramics Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Choi, Jae-Hyung (Engineering Ceramics Center, Korea Institute of Ceramic Engineering and Technology)
  • 투고 : 2021.11.10
  • 심사 : 2021.12.20
  • 발행 : 2021.12.28
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초록

SiAlON-based ceramics are a type of oxynitride ceramics, which can be used as cutting tools for heat-resistant super alloys (HRSAs). These ceramics are derived from Si3N4 ceramics. SiAlON can be densified using gas-pressure reactive sintering from mixtures of oxides and nitrides. In this study, we prepare an α-/β-SiAlON ceramic composite with a composition of Yb0.03Y0.10Si10.6Al1.4O1.0N15.0. The structure and mechanical/thermal properties of the densified SiAlON specimen are characterized and compared with those of a commercial SiAlON cutting tool. By observing the crystallographic structures and microstructures, the constituent phases of each SiAlON ceramic, such as α-SiAlON, β-SiAlON, and intergranular phases, are identified. By evaluating the mechanical and thermal properties, the contribution of the constituent phases to these properties is discussed as well.

키워드

과제정보

본 연구는 산업통상자원부의 미래성장동력 기술개발사업의 첨단공구고도화(과제번호 10067065)의 연구비 지원으로 수행되었으며 이에 감사드립니다.

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