논문 해외 국제전문학술지(SCI급) Surface characteristics of porous titanium implants fabricated by environmental electro-discharge sintering of spherical Ti powders in a vacuum atmosphere
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2005-10
- 저자명 Y.B. An a , N.H. Oh a , Y.W. Chun a , Y.H. Kim a , J.S. Park b , K.O. Choi c , T.G. Eom c , T.H. Byun c , J.Y. Kim d , C.Y. Hyun e , D.K. Kim f , C.S. Byun f , J.-H. Sok g , J.J. Kwon h , W.H. Lee a,*
- 학술지명 Scripta Materialia
- 발행처명 ELSEVIER
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 15
홈페이지
논문 초록 (Abstract)
A single pulse of 1.5 kJ, from a 300 μF capacitor, was applied to 0.7 g of atomized spherical Ti powders to produce a porous-surfaced implant compact by environmental electro-discharge sintering (EEDS) in a low vacuum atmosphere. A solid core was formed by a discharge in the middle of the compact which is surrounded by a porous layer. Ti, C and O were the main constituents, with a smaller amount of N. The EEDS implant surface was lightly oxidized and was primarily in the form of TiO2. The lightly etched sample showed the surface form of metallic Ti, indicating that the EEDS breaks down the oxide film of the as-received Ti powder during the discharge process. However, a small amount of N in the form of nitride, which was also found in the as-received Ti powder, was not changed in its chemical state by EEDS.