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Novel biomedical coatings for orthopaedic implant devices
thesis
posted on 2017-02-16, 04:50 authored by Bhadang, Kinnari ArvindHydroxyapatite [Ca1o(PO)s(OH)z] is an integral part of the body found
predominantly in bones and teeth which provide the main framework and
structural support for vital organs. Hydroxyapatite is present in a variety of
crystallinities and also substituted with small amounts of ions such as
carbonate and magnesium which overall contributes to the mineral phase of
bone and teeth [1 , 2]. The first biodegradable ceramic discovered and used
was particulate hydroxyapatite in Paster of Paris [3] (CaS04.2HzO) followed
by the discovery of hydroxyapatite in 1920's [4]. Commercialization of
hydroxyapatite occurred in the 1970's [5]. Despite the resorbability of
hydroxyapatite it failed to provide a load bearing function; hence titanium alloy
was used as the preferred material. Titanium has since been used extensively
in orthopaedic implants for knee and hip prosthesis. Commercial
hydroxyapatite implants are produced by plasma spraying hydroxyapatite onto
titanium alloy, TisAL4 V which fulfils the load bearing function of the implant.
History
Campus location
AustraliaPrincipal supervisor
John ForsytheAdditional supervisor 1
Helmut Thissen, Keith McLeanYear of Award
2014Department, School or Centre
Materials Science and EngineeringAdditional Institution or Organisation
Materials EngineeringCourse
Doctor of PhilosophyDegree Type
DOCTORATEFaculty
Faculty of EngineeringUsage metrics
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