Rapid fabrication of ultra-smooth Y-TZP bioceramic surfaces by dual-axis wheel polishing : process development and tribological characterization

Lu, Ange and Shang, Zhentao and Luo, Xichun and Jin, Tan and Luo, Hu (2020) Rapid fabrication of ultra-smooth Y-TZP bioceramic surfaces by dual-axis wheel polishing : process development and tribological characterization. Journal of Manufacturing Processes, 55. pp. 276-287. ISSN 1526-6125

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    Abstract

    The existing artificial joint implants using bioceramic materials face problems of difficulty in manufacturing and premature failure due to wear. This paper investigated a rapid preparing process of ultra-smooth surfaces of yttria-stabilized tetragonal zirconia polycrystal bioceramics based on the dual-axis wheel polishing (DAWP) system. Friction and wear tests were conducted to prove that the prepared ultra-smooth surface can effectively reduce wear. The effects of process parameters on polishing performances were investigated. The XRD and SEM analysis and micro-hardness testing were used to characterize the prepared surface in material behaviors. Tribological tests were carried out on a ball-on-plate reciprocating tribometer to comparatively study the tribological behavior and wear mechanism of the prepared ultra-smooth surfaces and the conventional surface at sub-microscale. The used finishing technology can steadily achieve fast preparation of ultra-smooth bioceramic surfaces, and with a high material removal rate (the highest value was 1.14 mg/min). Besides, in contrast to the conventional surface (Ra 129 nm), the prepared ultra-smooth surface (Ra 0.38 nm) achieved a much smaller friction coefficient, and much less wear volume, indicating that the wear resistance of the ultra-smooth surface was significantly improved.

    Creators(s): Lu, Ange, Shang, Zhentao, Luo, Xichun ORCID logoORCID: https://orcid.org/0000-0002-5024-7058, Jin, Tan and Luo, Hu;
    Item type:Article
    ID code:72279
    Keywords:Y-TZP bioceramics, ultra-smooth surface, polishing, friction and wear behavior, Manufactures, Strategy and Management, Management Science and Operations Research, Industrial and Manufacturing Engineering
    Subjects:Technology > Manufactures
    Department:Faculty of Engineering > Design, Manufacture and Engineering Management
    Depositing user: Pure Administrator
    Date deposited:06 May 2020 10:07
    Last modified:11 Feb 2021 10:34
    URI:https://strathprints.strath.ac.uk/id/eprint/72279
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