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Microstructures and bond strengths of the calcium phosphate coatings formed on titanium from different simulated body fluids

Chen, Xiaobo, Li, Yuncang, Hodgson, Peter D. and Wen, Cui`e 2009, Microstructures and bond strengths of the calcium phosphate coatings formed on titanium from different simulated body fluids, Materials science and engineering C : materials for biological applications, vol. 29, no. 1, pp. 165-171, doi: 10.1016/j.msec.2008.06.004.

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Title Microstructures and bond strengths of the calcium phosphate coatings formed on titanium from different simulated body fluids
Author(s) Chen, Xiaobo
Li, Yuncang
Hodgson, Peter D.
Wen, Cui`e
Journal name Materials science and engineering C : materials for biological applications
Volume number 29
Issue number 1
Start page 165
End page 171
Total pages 7
Publisher Elsevier SA
Place of publication Lausanne, Switzerland
Publication date 2009-01
ISSN 0928-4931
1873-0191
Keyword(s) calcium phosphate (Ca-P)
titanium (Ti)
biomimetic
simulated body fluid (SBF)
bond strength
surface roughness
Summary Calcium phosphate (Ca-P) coatings were deposited on Ti substrates by a biomimetic method from m-SBF and 10× SBF, respectively. Comparative study of microstructures and bond strengths of the Ca-P coatings deposited from those different SBFs was carried out. Effect of the surface roughness of the substrates on the bond strength of the Ca-P coatings was also studied. Scanning electron microscopy (SEM), X-ray diffractometry (XRD), Fourier transformed infrared spectroscopy (FTIR), inductive coupled plasma spectrometry (ICP) and thermogravimetry (TG) were used to characterize the Ca-P coatings. The bond strengths between the coatings and Ti substrates were measured using an adhesive strength test. Results indicated that the ionic concentrations of the SBFs and the surface roughness of the substrate had a significant influence on the formation, morphology and bond strength of the Ca-P precipitates. The induction period of time to deposit a complete Ca-P layer from the m-SBF is much longer, but the Ca-P coating is denser and has higher bond strength than that formed from the 10× SBF. The Ti with a surface roughness of Ra 0.64 µm and Rz 2.81 µm favoures the formation of a compact Ca-P coating from the m-SBF with the highest bond strength of approximately 15.5 MPa.
Language eng
DOI 10.1016/j.msec.2008.06.004
Field of Research 090301 Biomaterials
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
HERDC collection year 2009
Copyright notice ©2008, Elsevier B.V
Persistent URL http://hdl.handle.net/10536/DRO/DU:30022582

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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