Interfacial characterization of plasma-spray coated calcium phosphate on Ti-6Al-4V

E. Park; R. A. Condrate; D. T. Hoelzer; G. S. Fischman

doi:10.1023/A:1008931508465

Interfacial characterization of plasma-spray coated calcium phosphate on Ti-6Al-4V

E. Park, R. A. Condrate, D. T. Hoelzer, G. S. Fischman

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48 Scopus citations

Abstract

Microstructural characterization was performed on plasma-spray coated calcium phosphate and its interface with Ti-6Al-4V using scanning and transmission electron microscopy. The amorphous calcium phosphate phase was found near the coating/substrate interface, usually in between the crystalline hydroxyapatite grains and the Ti-6Al-4V substrate. The presence of the amorphous calcium phosphate and the channels extending from the interface to the coating surface was attributed to the low interfacial bond strength in a physiological environment. There was an indication of titanium diffusing into the amorphous regions. However, no reaction phases were found between the coating and the Ti-6Al-4V substrate. In the coating area remote from the interface, no intergranular amorphous calcium phosphate phase was observed. The microstructure of the Ti-6Al-4V substrate near the interface was observed to be affected by heat generated during plasma spraying.

Original language	English
Pages (from-to)	643-649
Number of pages	7
Journal	Journal of Materials Science: Materials in Medicine
Volume	9
Issue number	11
DOIs	https://doi.org/10.1023/A:1008931508465
State	Published - Nov 1998
Externally published	Yes

Funding

This work was supported by the Center for Advanced Ceramic Technology and Industry University Center for Biosurfaces at Alfred University.

Funders	Funder number
Alfred University
Center for Advanced Ceramic Technology and Industry University

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title = "Interfacial characterization of plasma-spray coated calcium phosphate on Ti-6Al-4V",

abstract = "Microstructural characterization was performed on plasma-spray coated calcium phosphate and its interface with Ti-6Al-4V using scanning and transmission electron microscopy. The amorphous calcium phosphate phase was found near the coating/substrate interface, usually in between the crystalline hydroxyapatite grains and the Ti-6Al-4V substrate. The presence of the amorphous calcium phosphate and the channels extending from the interface to the coating surface was attributed to the low interfacial bond strength in a physiological environment. There was an indication of titanium diffusing into the amorphous regions. However, no reaction phases were found between the coating and the Ti-6Al-4V substrate. In the coating area remote from the interface, no intergranular amorphous calcium phosphate phase was observed. The microstructure of the Ti-6Al-4V substrate near the interface was observed to be affected by heat generated during plasma spraying.",

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T1 - Interfacial characterization of plasma-spray coated calcium phosphate on Ti-6Al-4V

AU - Park, E.

AU - Condrate, R. A.

AU - Hoelzer, D. T.

AU - Fischman, G. S.

PY - 1998/11

Y1 - 1998/11

N2 - Microstructural characterization was performed on plasma-spray coated calcium phosphate and its interface with Ti-6Al-4V using scanning and transmission electron microscopy. The amorphous calcium phosphate phase was found near the coating/substrate interface, usually in between the crystalline hydroxyapatite grains and the Ti-6Al-4V substrate. The presence of the amorphous calcium phosphate and the channels extending from the interface to the coating surface was attributed to the low interfacial bond strength in a physiological environment. There was an indication of titanium diffusing into the amorphous regions. However, no reaction phases were found between the coating and the Ti-6Al-4V substrate. In the coating area remote from the interface, no intergranular amorphous calcium phosphate phase was observed. The microstructure of the Ti-6Al-4V substrate near the interface was observed to be affected by heat generated during plasma spraying.

AB - Microstructural characterization was performed on plasma-spray coated calcium phosphate and its interface with Ti-6Al-4V using scanning and transmission electron microscopy. The amorphous calcium phosphate phase was found near the coating/substrate interface, usually in between the crystalline hydroxyapatite grains and the Ti-6Al-4V substrate. The presence of the amorphous calcium phosphate and the channels extending from the interface to the coating surface was attributed to the low interfacial bond strength in a physiological environment. There was an indication of titanium diffusing into the amorphous regions. However, no reaction phases were found between the coating and the Ti-6Al-4V substrate. In the coating area remote from the interface, no intergranular amorphous calcium phosphate phase was observed. The microstructure of the Ti-6Al-4V substrate near the interface was observed to be affected by heat generated during plasma spraying.

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Interfacial characterization of plasma-spray coated calcium phosphate on Ti-6Al-4V

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