Coating of hydroxyapatite on highly porous Al2O3 substrate for bone substitutes

A thin film of hydroxyapatite (HA) was successfully coated onto a highly porous substrate of alumina by using a novel solution technique. The coated HA bonded strongly to the substrate through a glass sintering aid with an intermediate thermal expansion coefficient. The coating was also found to be...

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Veröffentlicht in:Journal of biomedical materials research 1998, Vol.43 (1), p.77-81
Hauptverfasser: Jiang, Gengwei, Shi, Donglu
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container_title Journal of biomedical materials research
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creator Jiang, Gengwei
Shi, Donglu
description A thin film of hydroxyapatite (HA) was successfully coated onto a highly porous substrate of alumina by using a novel solution technique. The coated HA bonded strongly to the substrate through a glass sintering aid with an intermediate thermal expansion coefficient. The coating was also found to be microstructurally and chemically uniform on the surfaces of the interconnected pores in the matrix of the substrate. Mechanical property testing results showed that the strength of the HA‐coated composite was significantly improved, indicating a high potential for structural bone substitutes in hard tissue prosthetics. © 1998 John Wiley & Sons, Inc. J Biomed Mater Res (Appl Biomater) 43: 77–81, 1998
doi_str_mv 10.1002/(SICI)1097-4636(199821)43:1<77::AID-JBM9>3.0.CO;2-J
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source MEDLINE; Wiley Online Library Journals Frontfile Complete
subjects Aluminum Oxide
Biocompatible Materials
Biological and medical sciences
Bone Substitutes
coating
Durapatite
hydroxyapatite
interfacial bond
Materials Testing
Medical sciences
Microscopy, Electron, Scanning
Orthopedic surgery
porous ceramics
strength
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
X-Ray Diffraction
title Coating of hydroxyapatite on highly porous Al2O3 substrate for bone substitutes
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