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Development of carbide coatings having biocompatibility and wear resistance for long-life artificial joints

Research Project

Project/Area Number 18K04722
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 26030:Composite materials and interfaces-related
Research InstitutionOkayama University

Principal Investigator

Shiota Tadashi  岡山大学, 自然科学研究科, 准教授 (40343165)

Co-Investigator(Kenkyū-buntansha) 生駒 俊之  東京工業大学, 物質理工学院, 教授 (20370306)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords炭化物薄膜コーティング / セラミック人工関節 / 低摩擦低摩耗 / 炭化ケイ素コーティング / 薄膜組成 / 低摩擦 / 人工関節 / 炭化物コーティング / 複合薄膜 / 低摩耗
Outline of Final Research Achievements

The purpose of this study was to develop a SiC thin-film coating having biocompatibility and low friction and wear for ceramic artificial joints. A silicon interlayer and amorphous SiC thin film were successively coated on ceramic substrate. Then, the coating life was greatly improved by suppression of peeling of the SiC thin film, and the coefficient of friction was reduced to about 1/5. The amorphous SiC thin film had low reactivity with blood proteins and was not toxic to osteoblasts, suggesting that it is effective as a coating with biocompatibility and low friction and wear.

Academic Significance and Societal Importance of the Research Achievements

近年の高齢化に伴って,機能を失った関節機構を人工関節で置換する外科的治療法(人工関節置換術)の急増が我が国を含むアジア圏全体で予測され,耐用年数15~20年とされる人工関節の長寿命化が急務となっている.本研究は,優れた水潤滑特性を示すことが知られていた炭化ケイ素セラミックスを用いた薄膜コーティングにより,最も低摩耗とされるセラミック人工関節の高摩擦という問題点を解決し,その長寿命化と普及に貢献すると考えられる.

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (6 results)

All 2020 2019

All Presentation (6 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Presentation] 生理食塩水中における炭化ケイ素コーティングの摩擦摩耗特性2020

    • Author(s)
      塩田忠,谷家大樹,竹中優加,大宮祐也,生駒俊之,藤井正浩
    • Organizer
      MRMフォーラム2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] 炭化ケイ素の水潤滑しゅう動における低摩擦状態の発現に及ぼす摩擦帯電の影響2020

    • Author(s)
      肖佳シン,塩田忠,大宮祐也,藤井正浩
    • Organizer
      日本機械学会中四国支部第58期総会・講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Tribological behavior of silicon carbide coating films for ceramic-on-ceramic artificial joints2019

    • Author(s)
      T. Shiota, M. Akiyama, D. Taniya, Y. Omiya, T. Ikoma, M. Fujii
    • Organizer
      The 8th International Conference on Manufacturing, Machine Design and Tribology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mechanical Properties of Amorphous SiC thin films on Al2O3 Ceramic Substrates2019

    • Author(s)
      T. Shiota, D. Taniya, M. Okiyama, Y. Takenaka, Y. Omiya, T. Ikoma, M. Fujii
    • Organizer
      The 13th Pacific Rim Conference of Ceramic Societies
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] アルミナ基板上へのSiC薄膜合成とその機械特性評価2019

    • Author(s)
      谷家大樹,秋山美穂,竹中優加,塩田忠,大宮祐也,藤井正浩
    • Organizer
      第26回ヤングセラミストミーティング in 中四国
    • Related Report
      2019 Research-status Report
  • [Presentation] PVD法による炭化物薄膜の合成と機械的応用2019

    • Author(s)
      塩田 忠
    • Organizer
      日本材料学会中国支部材料研究交流会
    • Related Report
      2018 Research-status Report
    • Invited

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Published: 2018-04-23   Modified: 2022-01-27  

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