Abstract
Total hip joint replacement is the major achievement in orthopedic surgery; zirconia and alumina have been widely used in the medical field due to their biocompatibility, excellent corrosion resistance, low friction, high wear resistance, high strength, and low cost. Fracture toughness of alumina is enhanced with dispersion of nanometer sized particles of TiO 2, Al 2O 3/TiO 2 nanocomposite. Therefore, this can be a good material for the femoral head of total hip joint replacement. This study simulation of human body behavior and movement of hip joint was carried out in a ball-on-disc tribometer, using silicon nitride balls and distilled water at 37 °C for 100 h. Al 2O 3/TiO 2 nanocomposite disk were hot pressed at 1500 °C and 25 MPa, in an Ar atmosphere for 1 h.
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