한국분말재료학회지 (Journal of Powder Materials)

  • 제21권2호
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  • Pages.102-107
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  • 2014
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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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In-situ 고온 딜라토미터를 이용한 탄화붕소의 소결거동 연구

A Study of the Sintering Behavior of Boron Carbide using In-situ High Temperature Dilatometer

  • 이혁재 (안동대학교 신소재공학부 친환경 신소재 산업지원센터) ;
  • 김범섭 (원익 QnC 기술연구소) ;
  • 정태주 (안동대학교 신소재공학부 친환경 신소재 산업지원센터)
  • Lee, Hyukjae (School of Materials Science and Engineering, Industrial Technology Center for Environment-friendly Materials, Andong National University) ;
  • Kim, Bum-Sup (R&D Center, Wonik QnC) ;
  • Chung, Tai-Joo (School of Materials Science and Engineering, Industrial Technology Center for Environment-friendly Materials, Andong National University)
  • 투고 : 2014.02.07
  • 심사 : 2014.04.01
  • 발행 : 2014.04.28
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초록

A high temperature dilatometer attached to a graphite furnace is built and used to study the sintering behavior of $B_4C$. Pristine and carbon doped $B_4C$ compacts are sintered at various soaking temperatures and their shrinkage profiles are detected simultaneously using the dilatometer. Carbon additions enhance the sinterability of $B_4C$ with sintering to more than 97% of the theoretical density, while pristine $B_4C$ compacts could not be sintered above 91% due to particle coarsening. The shrinkage profiles of $B_4C$ reveal that the effect of carbon on the sinterability of $B_4C$ can be seen mostly below $1950^{\circ}C$. The high temperature dilatometer delivers very useful information which is impossible to obtain with conventional furnaces.

키워드

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피인용 문헌

  1. Application of rate-controlled sintering into the study of sintering behavior of boron carbide vol.25, pp.1, 2015, https://doi.org/10.6111/JKCGCT.2015.25.1.006