Hydroxyapatite/titania composite bioactivity coating processed by the sol-gel method

J. Y. Han; Z. T. Yu; L. Zhou

doi:10.1088/1748-6041/3/4/044109

Hydroxyapatite/titania composite bioactivity coating processed by the sol-gel method

J. Y. Han, Z. T. Yu, L. Zhou

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

A hydroxyapatite/titania composite material was coated onto a titanium (pure Ti) substrate by the sol-gel method. HA (hydroxyapatite) and TiO ₂ (titania) sols were made from precursors separately and mixed together. The mixed sol was coated onto the Ti substrate by a spin coating method. The coated samples were dried and heat-treated at certain temperature. The XRD data show that there is an improvement in crystallization and growth of the grain size as the temperature increases. The addition of TiO₂ delayed the crystallization of HA and accelerated its decomposition. The composite HA coating has a porous structure. The addition of TiO₂ also improved the corrosion resistance of the coating.

Original language	English
Article number	044109
Journal	Biomedical Materials
Volume	3
Issue number	4
DOIs	https://doi.org/10.1088/1748-6041/3/4/044109
State	Published - 1 Dec 2008
Externally published	Yes

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abstract = "A hydroxyapatite/titania composite material was coated onto a titanium (pure Ti) substrate by the sol-gel method. HA (hydroxyapatite) and TiO 2 (titania) sols were made from precursors separately and mixed together. The mixed sol was coated onto the Ti substrate by a spin coating method. The coated samples were dried and heat-treated at certain temperature. The XRD data show that there is an improvement in crystallization and growth of the grain size as the temperature increases. The addition of TiO2 delayed the crystallization of HA and accelerated its decomposition. The composite HA coating has a porous structure. The addition of TiO2 also improved the corrosion resistance of the coating.",

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AU - Yu, Z. T.

AU - Zhou, L.

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N2 - A hydroxyapatite/titania composite material was coated onto a titanium (pure Ti) substrate by the sol-gel method. HA (hydroxyapatite) and TiO 2 (titania) sols were made from precursors separately and mixed together. The mixed sol was coated onto the Ti substrate by a spin coating method. The coated samples were dried and heat-treated at certain temperature. The XRD data show that there is an improvement in crystallization and growth of the grain size as the temperature increases. The addition of TiO2 delayed the crystallization of HA and accelerated its decomposition. The composite HA coating has a porous structure. The addition of TiO2 also improved the corrosion resistance of the coating.

AB - A hydroxyapatite/titania composite material was coated onto a titanium (pure Ti) substrate by the sol-gel method. HA (hydroxyapatite) and TiO 2 (titania) sols were made from precursors separately and mixed together. The mixed sol was coated onto the Ti substrate by a spin coating method. The coated samples were dried and heat-treated at certain temperature. The XRD data show that there is an improvement in crystallization and growth of the grain size as the temperature increases. The addition of TiO2 delayed the crystallization of HA and accelerated its decomposition. The composite HA coating has a porous structure. The addition of TiO2 also improved the corrosion resistance of the coating.

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ER -

Hydroxyapatite/titania composite bioactivity coating processed by the sol-gel method

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