整形外科インプラント材としてのTiN被覆ステンレス鋼材の性質

概要

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In this study, stainless steel(SUS316L) coated with titanium nitride ceramics(TiN) is proposed as an orthopedic implant. Effects of surface finishings of the stainless steel on bonding strength of the film are investigated. In order to decide optimum film thickness, the bonding strength test and the wear test are carried out. Then resistance to chemical agents and reactions of the surrounding tissues are studied. Results obtained are as follows; (1) The thinner the TiN film, the stronger the bonding strength. (2) After l0^7 loading repetitions, any cracks can not be observed on the TiN film. (3) Based on animal experiments, the biocompatibility of the TiN coated stainless steel appeared to be superior to un-coated material. (4) Stainless steel is etched with HC1 through pin holes on the TiN film.
社団法人精密工学会の論文
1989-11-05