Staff Detail: Masahiko SUZUKI
- Masahiko SUZUKI
- Orthopaedic surgery, Artifi cial joint, Biomaterials, Biomechanics, Motion analysis, Utrasonic microscopy, Finite element method
In orthopadic fields, joint arthroplasty is the major treatment for the patients with osteoarthritis and rheumatoid arthritis. We are doing researches focusing on biomaterials and biomechanics of cartilage, menisci, and bone. Finite element method also has been used for researches. Recently, carbon nanotube (CNT) reinforced titanium alloys and carbon-doped titanium oxide (Fresh Green) process of titanium alloys have been developed to achieve better mechanical property. The tribological behavior of them was examined in the study. Pin on disc tests were carried out to assess the tribological response of ultra-high molecular weight polyethylene to SP700, CNT SP700, Ti6Al4V, CNT Ti6AL4V, carbon-doped titanium oxide Ti6Al4V, and CoCrMo. The wear volume of the Ti6Al4V was totally equal to that of the CoCrMo. The wear volumes of CNT SP700 and CNT Ti6Al4V decreased to three fourths of that of the Ti6Al4V and the CoCrMo. The wear volume of the fresh green-Ti6Al4V decreased to one half of that of the Ti6Al4V and the CoCrMo . Hence, Fresh Green-Ti6Al4V might be a good candidate for sliding surface material.