Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31471
Title: In situ synthesis and fabrication of tricalcium phosphate bioceramic coating on commercially pure titanium by laser rapid forming
Authors: Hu, J
Wang, Z
Guan, T
Gao, Y
Lv, X
Lin, X
Tang, CY 
Gao, B
Keywords: Bioceramic coating
Laser
Pure titanium
Tricalcium phosphate
Issue Date: 2010
Publisher: Elsevier
Source: Surface and coatings technology, 2010, v. 204, no. 23, p. 3833-3837 How to cite?
Journal: Surface and coatings technology 
Abstract: Titanium possesses good mechanical property, but a lack of bioactivity. Bioceramic is usually used to coat the surface of a titanium implant to enhance its bioactivity. Therefore, it is important for the coating to have a high bonding strength to the titanium substrate and contain bioactive phases. In this work, CaCO3 and CaHPO42H2O powders were used to fabricate a bioceramic coating on commercially pure titanium (cp-Ti) by the laser rapid forming (LRF) technique. The phase composition of the coating contained 95 wt.% of Β-TCP and 5 wt.% of Β-TCP. Three layers were found in the coating: a ceramic layer, a transitional layer, and the substrate layer. In the transitional layer, interpenetration of phases was observed. The bonding strength between the coating and the cp-Ti substrate was in excess of 40.17MPa. In addition, the elastic modulus and the micro-hardness of the coating were 117.61GPa and 431.2 HV0.1, respectively. Furthermore, the static immersion test has confirmed that the coating not only prevented the corrosion of cp-Ti, but also induced the redeposition of Β-TCP in synthetic saliva.
URI: http://hdl.handle.net/10397/31471
ISSN: 0257-8972
EISSN: 1879-3347
DOI: 10.1016/j.surfcoat.2010.04.062
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