An interfacial study of sol-gel-derived magnesium apatite coatings on Ti6Al4V substrates

Guochao Qi; Sam Zhang; K. A. Khor; Wenjian Weng; Xianting Zeng; Chunming Liu

doi:10.1016/j.tsf.2007.07.010

An interfacial study of sol-gel-derived magnesium apatite coatings on Ti6Al4V substrates

Guochao Qi, Sam Zhang^*, K. A. Khor, Wenjian Weng, Xianting Zeng, Chunming Liu

^*Corresponding author for this work

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

23 Citations (Scopus)

Abstract

Magnesium apatite coatings on Ti6Al4V substrate were synthesized by the sol-gel dip-coating method. Magnesium was incorporated in the coating according to the formula (Ca_10-xMg_x)(PO₄)₆(OH) ₂, where x = 0, 0.50, 1.00, 1.50 and 2.00. Approximately 2-μm-thick apatite coatings were derived after five cycles of dip-drawing-drying-firing process. A transitional region (R_t) was formed between substrate and coating during the firing process. Adhesion tests show that the adhesion strength between substrate and apatite coating is enhanced by the incorporation of magnesium in the coating. The quantity of magnesium incorporated appeared to correspond to the Mg-Ti-O chemical bonds formed in the transitional region, which contributed to the adhesion strength of the coatings.

Original language	English
Pages (from-to)	5172-5175
Number of pages	4
Journal	Thin Solid Films
Volume	516
Issue number	16
DOIs	https://doi.org/10.1016/j.tsf.2007.07.010
Publication status	Published - Jun 30 2008
Externally published	Yes

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

Keywords

Adhesion strength
Magnesium apatite
Sol-gel
Ti6Al4V
X-ray photoelectron spectroscopy (XPS)

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10.1016/j.tsf.2007.07.010

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title = "An interfacial study of sol-gel-derived magnesium apatite coatings on Ti6Al4V substrates",

abstract = "Magnesium apatite coatings on Ti6Al4V substrate were synthesized by the sol-gel dip-coating method. Magnesium was incorporated in the coating according to the formula (Ca10-xMgx)(PO4)6(OH) 2, where x = 0, 0.50, 1.00, 1.50 and 2.00. Approximately 2-μm-thick apatite coatings were derived after five cycles of dip-drawing-drying-firing process. A transitional region (Rt) was formed between substrate and coating during the firing process. Adhesion tests show that the adhesion strength between substrate and apatite coating is enhanced by the incorporation of magnesium in the coating. The quantity of magnesium incorporated appeared to correspond to the Mg-Ti-O chemical bonds formed in the transitional region, which contributed to the adhesion strength of the coatings.",

keywords = "Adhesion strength, Magnesium apatite, Sol-gel, Ti6Al4V, X-ray photoelectron spectroscopy (XPS)",

author = "Guochao Qi and Sam Zhang and Khor, {K. A.} and Wenjian Weng and Xianting Zeng and Chunming Liu",

year = "2008",

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AU - Qi, Guochao

AU - Zhang, Sam

AU - Khor, K. A.

AU - Weng, Wenjian

AU - Zeng, Xianting

AU - Liu, Chunming

PY - 2008/6/30

Y1 - 2008/6/30

N2 - Magnesium apatite coatings on Ti6Al4V substrate were synthesized by the sol-gel dip-coating method. Magnesium was incorporated in the coating according to the formula (Ca10-xMgx)(PO4)6(OH) 2, where x = 0, 0.50, 1.00, 1.50 and 2.00. Approximately 2-μm-thick apatite coatings were derived after five cycles of dip-drawing-drying-firing process. A transitional region (Rt) was formed between substrate and coating during the firing process. Adhesion tests show that the adhesion strength between substrate and apatite coating is enhanced by the incorporation of magnesium in the coating. The quantity of magnesium incorporated appeared to correspond to the Mg-Ti-O chemical bonds formed in the transitional region, which contributed to the adhesion strength of the coatings.

AB - Magnesium apatite coatings on Ti6Al4V substrate were synthesized by the sol-gel dip-coating method. Magnesium was incorporated in the coating according to the formula (Ca10-xMgx)(PO4)6(OH) 2, where x = 0, 0.50, 1.00, 1.50 and 2.00. Approximately 2-μm-thick apatite coatings were derived after five cycles of dip-drawing-drying-firing process. A transitional region (Rt) was formed between substrate and coating during the firing process. Adhesion tests show that the adhesion strength between substrate and apatite coating is enhanced by the incorporation of magnesium in the coating. The quantity of magnesium incorporated appeared to correspond to the Mg-Ti-O chemical bonds formed in the transitional region, which contributed to the adhesion strength of the coatings.

KW - Adhesion strength

KW - Magnesium apatite

KW - Sol-gel

KW - Ti6Al4V

KW - X-ray photoelectron spectroscopy (XPS)

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JO - Thin Solid Films

JF - Thin Solid Films

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ER -

An interfacial study of sol-gel-derived magnesium apatite coatings on Ti6Al4V substrates

Abstract

ASJC Scopus Subject Areas

Keywords

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