Processing of HA-coated Ti-6Al-4V by a ceramic slurry approach: An in vitro study

E. S. Thian; K. A. Khor; N. H. Loh; S. B. Tor

doi:10.1016/S0142-9612(00)00272-6

Processing of HA-coated Ti-6Al-4V by a ceramic slurry approach: An in vitro study

E. S. Thian, K. A. Khor, N. H. Loh, S. B. Tor

Nanyang Technological University

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

38 Citations (Scopus)

Abstract

Hydroxyapatite-coated titanium alloy composite powders (Ti-6Al-4V/HA) was produced by a ceramic slurry approach. The aim was to evaluate the stability of the coating when subjected to a physiological mediumsimulated body fluid (SBF). Three consolidation conditions (700°C for 5h, 700°C for 8h and 700°C for 11h) were used in the production of the Ti-6Al-4V/HA composite powders. Results showed that biodissolution followed by apatite precipitation had taken place after soaking in SBF. In addition, it was found that consolidation at 700°C for 5h resulted in a weak mechanical locking of calcium phosphate on the Ti-6Al-4V surfaces; and the formation of small crystallites, which would increase the dissolution rate.

Original language	English
Pages (from-to)	1225-1232
Number of pages	8
Journal	Biomaterials
Volume	22
Issue number	11
DOIs	https://doi.org/10.1016/S0142-9612(00)00272-6
Publication status	Published - Jun 1 2001
Externally published	Yes

ASJC Scopus Subject Areas

Bioengineering
Ceramics and Composites
Biophysics
Biomaterials
Mechanics of Materials

Keywords

Apatite
Ceramic slurry approach
Consolidation
Dissolution
Precipitation
Simulated body fluid (SBF)

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10.1016/S0142-9612(00)00272-6

Cite this

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title = "Processing of HA-coated Ti-6Al-4V by a ceramic slurry approach: An in vitro study",

abstract = "Hydroxyapatite-coated titanium alloy composite powders (Ti-6Al-4V/HA) was produced by a ceramic slurry approach. The aim was to evaluate the stability of the coating when subjected to a physiological mediumsimulated body fluid (SBF). Three consolidation conditions (700°C for 5h, 700°C for 8h and 700°C for 11h) were used in the production of the Ti-6Al-4V/HA composite powders. Results showed that biodissolution followed by apatite precipitation had taken place after soaking in SBF. In addition, it was found that consolidation at 700°C for 5h resulted in a weak mechanical locking of calcium phosphate on the Ti-6Al-4V surfaces; and the formation of small crystallites, which would increase the dissolution rate.",

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author = "Thian, {E. S.} and Khor, {K. A.} and Loh, {N. H.} and Tor, {S. B.}",

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T1 - Processing of HA-coated Ti-6Al-4V by a ceramic slurry approach

T2 - An in vitro study

AU - Thian, E. S.

AU - Khor, K. A.

AU - Loh, N. H.

AU - Tor, S. B.

PY - 2001/6/1

Y1 - 2001/6/1

N2 - Hydroxyapatite-coated titanium alloy composite powders (Ti-6Al-4V/HA) was produced by a ceramic slurry approach. The aim was to evaluate the stability of the coating when subjected to a physiological mediumsimulated body fluid (SBF). Three consolidation conditions (700°C for 5h, 700°C for 8h and 700°C for 11h) were used in the production of the Ti-6Al-4V/HA composite powders. Results showed that biodissolution followed by apatite precipitation had taken place after soaking in SBF. In addition, it was found that consolidation at 700°C for 5h resulted in a weak mechanical locking of calcium phosphate on the Ti-6Al-4V surfaces; and the formation of small crystallites, which would increase the dissolution rate.

AB - Hydroxyapatite-coated titanium alloy composite powders (Ti-6Al-4V/HA) was produced by a ceramic slurry approach. The aim was to evaluate the stability of the coating when subjected to a physiological mediumsimulated body fluid (SBF). Three consolidation conditions (700°C for 5h, 700°C for 8h and 700°C for 11h) were used in the production of the Ti-6Al-4V/HA composite powders. Results showed that biodissolution followed by apatite precipitation had taken place after soaking in SBF. In addition, it was found that consolidation at 700°C for 5h resulted in a weak mechanical locking of calcium phosphate on the Ti-6Al-4V surfaces; and the formation of small crystallites, which would increase the dissolution rate.

KW - Apatite

KW - Ceramic slurry approach

KW - Consolidation

KW - Dissolution

KW - Precipitation

KW - Simulated body fluid (SBF)

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JO - Biomaterials

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ER -

Processing of HA-coated Ti-6Al-4V by a ceramic slurry approach: An in vitro study

Abstract

ASJC Scopus Subject Areas

Keywords

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