Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Sintering Behavior of Zirconium Diboride wth Addition of Titanium Boride

붕화 티탄 첨가에 의한 붕화지르코늄의 소결거동

  • 우상국 (한국에너지기술연구소 에너지재료연구팀) ;
  • 한인섭 (한국에너지기술연구소 에너지재료연구팀) ;
  • 홍기석 (한국에너지기술연구소 에너지재료연구팀) ;
  • 장병구 (한국에너지기술연구소 에너지재료연구팀) ;
  • 양준환 (한국에너지기술연구소 에너지재료연구팀) ;
  • 김종희 (한국과학기술원 재료공학과)
  • Published : 1997.11.01
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Abstract

In the present study, the effect of TiB2 addition on the sintering behavior of ZrB2 ceramics was studied with hot pressing under Ar atmosphere. Hot pressing experiments were carried out in graphite dies at the 1$700^{\circ}C$, 180$0^{\circ}C$ under Ar atmosphere. The sintering density increased with increasing TiB2 contents. With the addition of 10wt% TiB2 almost theoretical density could be achieved by hot-pressing at 180$0^{\circ}C$. Zr-Ti-Fe-B compound in liquid phase was observed from the EDS and WDS analysis. It was considered that sinterability was enhanced due to the mass transfer through liquid phase formed at the sintering temperature. In addition of TiB2, transition metal of groups IV, substitutional solid solution could be formed.

Keywords

References

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