Formation and growth of calcium phosphate on the surface of oxidized Ti-29Nb-13Ta-4.6Zr alloy

S. J. Li; R. Yang; M. Niinomi; Y. L. Hao; Y. Y. Cui

doi:10.1016/j.biomaterials.2003.09.039

Formation and growth of calcium phosphate on the surface of oxidized Ti-29Nb-13Ta-4.6Zr alloy

S. J. Li, R. Yang, M. Niinomi, Y. L. Hao, Y. Y. Cui

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

70 Citations (Scopus)

Abstract

The bioconductivity of a new biomedical titanium alloy Ti-29Nb-13Ta-4.6Zr achieved by a combination of surface oxidation and alkali treatment is reported in this paper. Oxidation treatment at 400°C for 24h was found to result in the formation of a hard layer on the surface of the alloy. Immersion in a protein-free simulated body fluid and fast calcification solution led to the growth of calcium phosphate (Ca-P) phase on the oxidized and alkali-treated alloy, and the new bioconductive surface was still harder than the substrate. The surface processes during various treatment and immersion processes were investigated in detail, and the morphology of the calcium phosphate crystals was shown to be determined by the concentrations of Ca and P in the solution.

Original language	English
Pages (from-to)	2525-2532
Number of pages	8
Journal	Biomaterials
Volume	25
Issue number	13
DOIs	https://doi.org/10.1016/j.biomaterials.2003.09.039
Publication status	Published - 2004 Jun
Externally published	Yes

Keywords

Calcium phosphate coating
Crystal growth
Metal surface treatment
Oxidation
Titanium alloy

ASJC Scopus subject areas

Bioengineering
Ceramics and Composites
Biophysics
Biomaterials
Mechanics of Materials

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10.1016/j.biomaterials.2003.09.039

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title = "Formation and growth of calcium phosphate on the surface of oxidized Ti-29Nb-13Ta-4.6Zr alloy",

abstract = "The bioconductivity of a new biomedical titanium alloy Ti-29Nb-13Ta-4.6Zr achieved by a combination of surface oxidation and alkali treatment is reported in this paper. Oxidation treatment at 400°C for 24h was found to result in the formation of a hard layer on the surface of the alloy. Immersion in a protein-free simulated body fluid and fast calcification solution led to the growth of calcium phosphate (Ca-P) phase on the oxidized and alkali-treated alloy, and the new bioconductive surface was still harder than the substrate. The surface processes during various treatment and immersion processes were investigated in detail, and the morphology of the calcium phosphate crystals was shown to be determined by the concentrations of Ca and P in the solution.",

keywords = "Calcium phosphate coating, Crystal growth, Metal surface treatment, Oxidation, Titanium alloy",

author = "Li, {S. J.} and R. Yang and M. Niinomi and Hao, {Y. L.} and Cui, {Y. Y.}",

note = "Funding Information: The work was supported by the NSFC (grants 59925103 and 50828101), the Chinese MoST (grant TG2000067105), and NEDO and JSPS in Japan. SJL is grateful to the Ministry of Education, Science and Culture of Japan for the award of a visiting studentship.",

year = "2004",

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doi = "10.1016/j.biomaterials.2003.09.039",

language = "English",

volume = "25",

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T1 - Formation and growth of calcium phosphate on the surface of oxidized Ti-29Nb-13Ta-4.6Zr alloy

AU - Li, S. J.

AU - Yang, R.

AU - Niinomi, M.

AU - Hao, Y. L.

AU - Cui, Y. Y.

N1 - Funding Information: The work was supported by the NSFC (grants 59925103 and 50828101), the Chinese MoST (grant TG2000067105), and NEDO and JSPS in Japan. SJL is grateful to the Ministry of Education, Science and Culture of Japan for the award of a visiting studentship.

PY - 2004/6

Y1 - 2004/6

N2 - The bioconductivity of a new biomedical titanium alloy Ti-29Nb-13Ta-4.6Zr achieved by a combination of surface oxidation and alkali treatment is reported in this paper. Oxidation treatment at 400°C for 24h was found to result in the formation of a hard layer on the surface of the alloy. Immersion in a protein-free simulated body fluid and fast calcification solution led to the growth of calcium phosphate (Ca-P) phase on the oxidized and alkali-treated alloy, and the new bioconductive surface was still harder than the substrate. The surface processes during various treatment and immersion processes were investigated in detail, and the morphology of the calcium phosphate crystals was shown to be determined by the concentrations of Ca and P in the solution.

AB - The bioconductivity of a new biomedical titanium alloy Ti-29Nb-13Ta-4.6Zr achieved by a combination of surface oxidation and alkali treatment is reported in this paper. Oxidation treatment at 400°C for 24h was found to result in the formation of a hard layer on the surface of the alloy. Immersion in a protein-free simulated body fluid and fast calcification solution led to the growth of calcium phosphate (Ca-P) phase on the oxidized and alkali-treated alloy, and the new bioconductive surface was still harder than the substrate. The surface processes during various treatment and immersion processes were investigated in detail, and the morphology of the calcium phosphate crystals was shown to be determined by the concentrations of Ca and P in the solution.

KW - Calcium phosphate coating

KW - Crystal growth

KW - Metal surface treatment

KW - Oxidation

KW - Titanium alloy

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VL - 25

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JO - Biomaterials

JF - Biomaterials

IS - 13

ER -

Formation and growth of calcium phosphate on the surface of oxidized Ti-29Nb-13Ta-4.6Zr alloy

Abstract

Keywords

ASJC Scopus subject areas

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