Tribological analysis of alumina nanocomposites for orthopedics applications

Carlos Morillo, Yoshinori Sawae, Teruo Murakami

    研究成果: Chapter in Book/Report/Conference proceedingConference contribution

    1 被引用数 (Scopus)

    抄録

    In this study the tribological analysis of Al 2O 3 nanocomposites/Al 2O 3 pair; proposed as a candidate material to fabricate hip prostheses was carried out. Nanopowders of Al 2O 3 (AKP 50, 300 nm), TiO 2 (PS-25, 50 nm) and Co metallic powder (Nilaco, 28 nm) were mixed and hot pressed. Wear test was carried out in a pin-on-plate tribometer, with a frequency of 1 Hz, a load of 49 N, for 4h; the counterface used was Al 2O 3. Mechanical properties as Vickers hardness, fracture toughness and Young's modulus were estimated using the indentation method. Distilled water and fetal bovine serum solution (FBSS) were used as environment. It was found that the specific wear rate of Al 2O 3 nanocomposites was about 10 -8 mm 3/N*m and the coefficients of friction were around 0.3-0.5 for FBSS. Worn surfaces were observed using SEM.

    本文言語英語
    ホスト出版物のタイトル2008 Proceedings of the STLE/ASME International Joint Tribology Conference, IJTC 2008
    ページ127-129
    ページ数3
    出版ステータス出版済み - 2009
    イベント2008 STLE/ASME International Joint Tribology Conference, IJTC 2008 - Miami, FL, 米国
    継続期間: 10 20 200810 22 2008

    その他

    その他2008 STLE/ASME International Joint Tribology Conference, IJTC 2008
    国/地域米国
    CityMiami, FL
    Period10/20/0810/22/08

    All Science Journal Classification (ASJC) codes

    • 流体および伝熱
    • プロセス化学およびプロセス工学
    • 機械工学

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