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Conversion Of Induction Heating Deposited Monetite Coating To Hydroxyapatite Coating Onht–C/Ccomposites By Hydrothermal Treatment In Koh Aqueous/Ammonia Solution

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  • DONG-MEI LI

    (School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China)

  • XIN-BO XIONG

    (Shen Zhen Key Laboratory of Special Functional Materials, Department of Materials Science and Engineering, Shen Zhen University, Shen Zhen 518060, China)

  • XIE-RONG ZENG

    (Shen Zhen Key Laboratory of Special Functional Materials, Department of Materials Science and Engineering, Shen Zhen University, Shen Zhen 518060, China)

  • CHUN-LI ZOU

    (Shen Zhen Key Laboratory of Special Functional Materials, Department of Materials Science and Engineering, Shen Zhen University, Shen Zhen 518060, China)

  • JI-ZHAO ZOU

    (Shen Zhen Key Laboratory of Special Functional Materials, Department of Materials Science and Engineering, Shen Zhen University, Shen Zhen 518060, China)

Abstract

Carbon/carbon composites with hydroxyapatite coatings are one of the attractive materials in the dental and orthopedic fields. In this study, hydrothermal treatment, in KOH aqueous and ammonia solutions, was used to convert an induction-heating-deposited monetite coating to an adherent HA coating onH2O2treatedC/Ccomposites. The structure, morphology and chemical composition of the as-received HA coatings were characterized by XRD, FTIR, SEM and EDS. A scratch test was conducted to measure the adhesion of HA coatings toHT–C/Csubstrate. The results show that well-crystallized carbonate hydroxyapatite coatings could be achieved under the two reaction mediums. However, the as-obtained HA coatings after KOH hydrothermal treatment have higher crystallinity andCa/Pratio than those after ammonia hydrothermal treatment, and reveal an average critical load of 29 N which is more than two times as high as that for HA coatings after ammonia hydrothermal treatment.

Suggested Citation

  • Dong-Mei Li & Xin-Bo Xiong & Xie-Rong Zeng & Chun-Li Zou & Ji-Zhao Zou, 2009. "Conversion Of Induction Heating Deposited Monetite Coating To Hydroxyapatite Coating Onht–C/Ccomposites By Hydrothermal Treatment In Koh Aqueous/Ammonia Solution," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 16(05), pages 675-681.
    • Handle: RePEc:wsi:srlxxx:v:16:y:2009:i:05:n:s0218625x09013153
    DOI: 10.1142/S0218625X09013153
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