Journal of University of Chinese Academy of Sciences >
Study on Plasma Sprayed Bioactive Wollastonite Coatings
Received date: 2004-09-17
Online published: 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)
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.
LIU Xuan-Yong , DING Chuan-Xian . Study on Plasma Sprayed Bioactive Wollastonite Coatings[J]. Journal of University of Chinese Academy of Sciences, 2005 , 22(4) : 518 -523 . DOI: 10.7523/j.issn.2095-6134.2005.4.019
[1] Liu XY, Ding CX. Characterizat ion of plasma sprayed wollastonite powder and coating. Surface & Coatings Technology, 2002, 153(2-3) : 173~177
[2] Liu XY, Ding CX. Thermal properties and microstructure of a plasma sprayed wollastonite coat ing. J. Thermal Spray Technol. 2002, 11(3) : 375～379
[3] Liu XY, Ding CX. Phase compositions and microstructure of plasma sprayed wollastonite coat ing. Surface & Coatings Technology, 2001, 141(2-3) : 269～274
[4] Liu XY, Ding CX. Apatite formed on the surface of plasma sprayed wol lastonite coating immersed in simulated body fluid. Biomaterial s, 2001, 22(14) : 2007～2012
[5] Liu XY, Ding CX. Reactivity of plasma sprayed wollast onit e in simulated body fluid. J. Biomed. Mater. Res. 2002, 59(2) : 259～264.
[6] Liu XY, Ding CX, Chu Paul K. Mechanism of Apatite Format ion on Wollastonit e Coat ings in Simulated Body Fluids. Biomaterial s, 2004, 25(10) :1755～1761
[7] Liu XY, Ding CX. Morphology of apatite formed on surface of wollastonite coat ing soaked in simulat e body fluid. Materials Letters, 2002, 57(3) :652～655
[8] Liu XY, Ding CX. Bioactivity of plasma sprayedwollastonite coat ings in simulated body fluid. Materials Science Forum, 2003, 423- 425: 331～334
[9] Liu XY, Ding CX. Plasma sprayed wollastonitePTiO2 composit e coatings on titanium alloys. Biomaterials, 2002, 23(20) : 4065～4077
[10] Liu XY, Ding CX. Bioactivity of Plasma sprayed wollastonitePZrO2 composit e coat ing. Surface & Coatings Technology, 2003, 172: 270～278
[11] Liu XY, Tao SY, Ding CX. Bioact ivity of plasma sprayed dicalcium silicat e coating. Biomaterials, 2002, 23(3) : 963～968
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