Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Characteristics of Pure Mg Powder Compacts Prepared by Spark Plasma Sintering Process

방전플라즈마 소결법으로 제작된 순 마그네슘 분말 소결체의 특성평가

  • Hong, Ji-Min (Korea Institute of Industrial Technology (KITECH), Gwangju Research center) ;
  • Son, Hyeon-Taek (Korea Institute of Industrial Technology (KITECH), Gwangju Research center) ;
  • Chang, Se-Hun (Korea Institute of Industrial Technology (KITECH), Gwangju Research center) ;
  • Lee, Jae-Seoul (Korea Institute of Industrial Technology (KITECH), Gwangju Research center) ;
  • Cha, Yong-Hun (Chosun University) ;
  • Oh, Ik-Hyun (Korea Institute of Industrial Technology (KITECH), Gwangju Research center)
  • 홍지민 (한국생산기술연구원 광주연구센터) ;
  • 손현택 (한국생산기술연구원 광주연구센터) ;
  • 장세훈 (한국생산기술연구원 광주연구센터) ;
  • 이재설 (한국생산기술연구원 광주연구센터) ;
  • 차용훈 (조선대학교 기계공학부) ;
  • 오익현 (한국생산기술연구원 광주연구센터)
  • Published : 2007.06.27
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Abstract

The pure Mg powder compacts were successfully fabricated using SPS process. The machined chip powder showed flake shaped morphology with coarse surfaces, while gas atomized powders were spherical in morphology with smooth surfaces. In this study, SPS process was used to consolidate the pure Mg powder because this process allows high density consolidation in a short time. The results showed that increased sintering temperature from $350^{\circ}C$ to $500^{\circ}C$ with pressure of 30MPa, the maximum values of the density was increased from 98.1% to 99.8% of theoretical density, respectively. However, density of the sintered chip powders was higher than that of gas-atomized powder due to larger contact areas between particles.

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References

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