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›› 2005, Vol. 22 ›› Issue (4): 518-523.DOI: 10.7523/j.issn.2095-6134.2005.4.019

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Study on Plasma Sprayed Bioactive Wollastonite Coatings

LIU Xuan-Yong, DING Chuan-Xian   

  1. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:2004-09-17 Online:2005-07-15
  • Supported by:

    supported by Shangha iScienceand Technology R&Dfund (02QE14052,03JC14074),National Basic Research Fund(G19990 64701),National Natural Science Found ation of China (50102008)

Abstract:

A novel bioact ive ceramic, wollastonite, was deposited onto T-i 6A-l 4V substrate using plasma spraying technology for improving its bioact ivity and biocompatibility. The process, structures and properties of plasma sprayed wollastonite coat ing were examined using scanning electron microscopy, transmission electron microscopy, X-ray diffraction, infrared spectroscopy and etc. In order to upgrade the propert ies of wollastonite coating, the wollastonitePTiO2 and wollastonitePZrO2 composite coatings and dicalcium silicate coat ing are also prepared and examined. The results showed that wollastonite and its composite coatings with certain content of wollastonite possessed good bioactivity, biocompatibility as well as t ight bonding to T-i 6A-l 4V substrate, indicating they may be candidates for bone graft in human body.

Key words: plasma spraying, wollastonite coating, dicalcium silicate coating, bioactivity, biocompatibility

CLC Number: