This research presents a preparation method of dental components by metal injection molding process (MIM process) using titanium scrap. About 20 μm sized spherical titanium powders for MIM process were successfully prepared by a novel dehydrogenation and spheroidization method using in-situ radio frequency thermal plasma treatment. The effects of MIM process parameters on the mechanical and biological properties of dental components were investigated and the optimum condition was obtained. After sintering at 1250oC for 1 hour in vacuum, the hardness and the tensile strength of MIMed titanium components were 289 Hv and 584 MPa, respectively. Prepared titanium dental components were not cytotoxic and they showed a good cell proliferation property.

• 곽지나(한국기계연구원 부설 재료연구소 분말기술연구그룹, 부산대학교 재료공학과) | Ji-Na Gwak
• 양상선(한국기계연구원 부설 재료연구소 분말기술연구그룹) | Sangsun Yang Corresponding Author
• 윤중열(한국기계연구원 부설 재료연구소 분말기술연구그룹) | Jung-Yeul Yun
• 김주용((주)기노리 기술연구소) | Ju-Yong Kim
• 박성진(포항공대 기계공학과) | Seongjin Park
• 김현승((주)메가젠임플란트) | Hyun-Seung Kim
• 김용진(한국기계연구원 부설 재료연구소 분말기술연구그룹) | Yong-Jin Kim
• 박용호(부산대학교 재료공학과) | Yong-Ho Park