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방전플라즈마 소결법으로 제작된 순 마그네슘 분말 소결체의 특성평가
홍지민,손현택,장세훈,이재설,차용훈,오익현,Hong, Ji-Min,Son, Hyeon-Taek,Chang, Se-Hun,Lee, Jae-Seoul,Cha, Yong-Hun,Oh, Ik-Hyun 한국재료학회 2007 한국재료학회지 Vol.17 No.6
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.