Hydroxyapatite-coated metals: Interfacial reactions during sintering

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dc.contributor.author Wei, M en_US
dc.contributor.author Ruys, A en_US
dc.contributor.author Swain, Michael en_US
dc.contributor.author Milthorpe, Bruce en_US
dc.contributor.author Sorrell, Charles en_US
dc.contributor.editor en_US
dc.date.accessioned 2010-07-15T07:27:12Z
dc.date.available 2010-07-15T07:27:12Z
dc.date.issued 2005 en_US
dc.identifier 2008004463 en_US
dc.identifier.citation Wei M et al. 2005, 'Hydroxyapatite-coated metals: Interfacial reactions during sintering', Springer New York LLC, vol. 16, pp. 101-106. en_US
dc.identifier.issn 0957-4530 en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/12796
dc.description.abstract en_US
dc.description.abstract Electrophoretic deposition (EPD) is a low cost flexible process for producing HA coatings on metal implants. Its main limitation is that it requires heating the coated implant in order to densify the HA. HA typically sinters at a temperature below 1150 degreesC, but metal implants are degraded above 1000 degreesC. Further, the metal induces the decomposition of the HA coating upon sintering. Recent developments have enabled EPD of metathesis-synthesised uncalcined HA which sinters at similar to 1000 degreesC. The effects of temperature on HA-coated Ti, T16AI4V, and 316L stainless steel were investigated for dual coatings of metathesis HA sintered at 1000 degreesC. The use of dual HA coatings (coat, sinter, coat, sinter) enabled decomposition to be confined to the "undercoat" (HA layer 1), with the surface coating decomposition free. The tensile strength of the three metals was not significantly affected by the high sintering temperatures (925 degreesC < T < 1000degreesC). XRD/SEM/EDS analyses of the interfacial zones revealed that 316L had a negligible HA:metal interfacial zone (similar to1 mum) while HA:Ti and HA:Ti6Al4V had large interfacial zones (>10 mum) comprising a TiO2 oxidation zone and a CaTiO3 reaction zone en_US
dc.language en_US
dc.publisher Springer New York LLC en_US
dc.relation.isbasedon en_US
dc.title Hydroxyapatite-coated metals: Interfacial reactions during sintering en_US
dc.parent Journal Of Materials Science-materials In Medicine en_US
dc.journal.volume 16 en_US
dc.journal.number en_US
dc.publocation United States en_US
dc.identifier.startpage 101 en_US
dc.identifier.endpage 106 en_US
dc.cauo.name SCI.Medical and Molecular Biosciences en_US
dc.conference Verified OK en_US
dc.for 090300 en_US
dc.personcode 0000049886 en_US
dc.personcode 0000049885 en_US
dc.personcode 0000016571 en_US
dc.personcode 105631 en_US
dc.personcode X000263 en_US
dc.percentage 50 en_US
dc.classification.name Biomedical Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords en_US
dc.description.keywords PHOSPHATE CERAMIC COATINGS; ELECTROPHORETIC DEPOSITION; POROUS TITANIUM; DISSOLUTION en_US


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