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PREPARATION AND MECHANISM OF CONTROLLABLE MICROPORES ON BIOCERAMICTiO2COATINGS BY PLASMA ELECTROLYTIC OXIDATION

Author

Listed:
  • HONG-YUAN WANG

    (Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Ji'nan 250061, China;
    School of Materials Science and Engineering, Shandong University, Ji'nan 250061, China;
    Jinan Vocational College, Ji'nan 250103, China)

  • RUI-FU ZHU

    (Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Ji'nan 250061, China;
    School of Materials Science and Engineering, Shandong University, Ji'nan 250061, China)

  • YU-PENG LU

    (Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Ji'nan 250061, China;
    School of Materials Science and Engineering, Shandong University, Ji'nan 250061, China)

  • GUI-YONG XIAO

    (Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Ji'nan 250061, China;
    School of Materials Science and Engineering, Shandong University, Ji'nan 250061, China)

  • JIE MA

    (New Material Institute, Shandong Academy of Sciences, Ji'nan 250014, China)

  • Y. F. YUAN

    (Department of Materials Science and Engineering, Michigan Technological University, Houghton MI 49931, USA)

Abstract

Porous titania coatings withCaandPelements were synthesized by plasma electrolytic oxidation (PEO). The treatment was carried out in an electrolyte containing calcium acetate monohydrate and disodium phosphate dodecahydrate(Ca/P= 5), and 4–20 μm micropores were prepared on the coatings by applied pulse frequencies of 200–1000 Hz. The surface structure, chemical composition of theTiO2coatings, and time-dependent variation of electric currents were studied. The result revealed that the coating micropores, which could be controlled in size, increased with higher frequency, and the coatings mainly consisted of anatase and rutile phases with varying fractions. Based on our experiment, the formation mechanism of micropores and phases of the PEO coatings was further discussed in details.

Suggested Citation

  • Hong-Yuan Wang & Rui-Fu Zhu & Yu-Peng Lu & Gui-Yong Xiao & Jie Ma & Y. F. Yuan, 2013. "PREPARATION AND MECHANISM OF CONTROLLABLE MICROPORES ON BIOCERAMICTiO2COATINGS BY PLASMA ELECTROLYTIC OXIDATION," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 20(05), pages 1-7.
    • Handle: RePEc:wsi:srlxxx:v:20:y:2013:i:05:n:s0218625x13500510
    DOI: 10.1142/S0218625X13500510
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