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컴퓨터 시뮬레이션에 의한 SPS의 몰드크기에 따른 SiC-ZrB2 복합체의 소결특성 연구

A Study on Sintering Properties of a SiC-ZrB2 Composite According to Mold Size of SPS Through Computer Simulation

  • 신용덕 (원광대학교 전기.정보통신공학부, 부설 공업기술개발연구소) ;
  • 이정훈 (원광대학교 대학원 전기공학과) ;
  • 진범수 (원광대학교 대학원 전기공학과) ;
  • 강명균 (원광대학교 대학원 전기공학과)
  • 투고 : 2012.03.06
  • 심사 : 2012.06.26
  • 발행 : 2012.07.01

초록

The computer simulation was performed to confirm distribution of current and power density according to inner diameter of graphite mold of SPS(Spark Plasma Sintering). When the inner diameters of a graphite mold are varied $10mm{\Phi}$, $20mm{\Phi}$, $30mm{\Phi}$ and $40mm{\Phi}$, the more the inner diameter of graphite mold is decreased, the more the current density of punch section is increased. Because the electrical resistivity of the SiC-$ZrB_2$ specimen section($7.77{\times}10^{-4}{\Omega}{\cdot}cm$) was lower than the electrical resistivity($6.00{\times}10^{-3}{\Omega}{\cdot}cm$) of graphite section, the current density and power density of specimen section was higher than those of graphite section. It is considered that a SiC-$ZrB_2$ composite is sintered by more Joule heat of specimen section than that of mold and punch section. The current and power density distribution of a SiC-$ZrB_2$ composite can be predicted through computer simulation when SPS is conducted, and an electrical resistivity of the SiC-$ZrB_2$ composite is main element of SPS.

키워드

참고문헌

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