Calcium Titanate Film-Coating on Titanium with Hydrothermal Treatments


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Film-coating on the surface of titanium was investigated by hydrothermal treatments with a maximal pressure of 6.3 MPa (280°C) in CaO solution and water to improve bioactivity and biocompatibility. As a result, calcium titanate (CaTiO3) film was formed on the titanium surface. The surface-coated titanium was immersed in a simulated body fluid (SBF) to estimate its bioactivity. Apatite precipitation was observed on all hydrothermal-treated titanium surfaces after immersion in SBF for 4 weeks. In particular, the apatite precipitation of titanium treated with 6.3 MPa in CaO solution was clearer and larger in amount than those of all other hydrothermal-treated specimens. The results suggest that surface modification of titanium with high-pressure hydrothermal treatments can be expected to improve bioactivity and biocompatibility.



Key Engineering Materials (Volumes 330-332)

Main Theme:

Edited by:

Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu






M. Kon et al., "Calcium Titanate Film-Coating on Titanium with Hydrothermal Treatments", Key Engineering Materials, Vols. 330-332, pp. 737-740, 2007

Online since:

February 2007




[1] T. Hanawa, M. Kon, H. Ukai, K. Murakami, Y. Miyamoto, K. Asaoka: Surface modification of titanium in calcium-ion-containing solutions. J Biomed Mater Res vol. 34 (1997), p.273.

DOI: 10.1002/(sici)1097-4636(19970305)34:3<273::aid-jbm1>;2-h

[2] K. Hamada, M. Kon, T. Hanawa, K. Yokoyama, Y. Miyamoto, K. Asaoka: Hydrothermal modification of titanium surface in calcium solutions. Biomater vol. 23 (2002), p.2265.

DOI: 10.1016/s0142-9612(01)00361-1

[3] T. Hanawa, M. Kon, H. Doi, H. Ukai, K. Murakami, H. Hamanaka, K. Asaoka: Amount of hydroxyl group on calcium-ion-implantated titanium and point of zero charge of constituent oxide of the surface-modified layer. J Mater Sci: Mater in Med vol. 9 (1998).

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