Investigation into the thermal dehydroxylation and decomposition of hydroxylapatite during atmospheric plasma spraying: NMR and Raman spectroscopic study of as-sprayed coatings and coatings incubated in simulated body fluid [Elektronische Ressource] / von Thi Hong Van Tran

Investigation into the thermal dehydroxylation and decomposition of hydroxylapatite during atmospheric plasma spraying: NMR and Raman spectroscopic study of as-sprayed coatings and coatings incubated in simulated body fluid Von der Fakultät für Geowissenschaften, Geotechnik und Bergbau der Technischen Universität Bergakademie Freiberg genehmigte DISSERTATION Zur Erlangung des akademischen Grades Doctor rerum naturalium Dr.rer.nat. vorgelegt von Dipl.-Ing. Thi Hong Van TRAN geboren am 16 Juli 1970 in Hanoi, Vietnam Gutachter: Prof.Dr. Robert B. Heimann, Freiberg Prof.Dr. Berthold Thomas, Freiberg Dr. Georg Berger, BAM Berlin Tag der Verleihung: 11.Feb.2005 Table of content page Abbreviations iiiPreface 1Zusammenfassung 21. State-of-the-art of biomaterials 31.1. Biomaterials 31.2. Bioconductive ceramic materials 41.3. Calcium phosphates 51.3.1. Tricalcium phosphate 61.3.2. Tetracalcium 81.3.3. Hydroxylapatite 81.3.3.1. Crystal structure of hydroxylapatite 81.3.3.2. Thermal stability of hydroxylapatite 101.3.3.3. Non-stoichiometry of hydroxylapatite 111.4. Hydroxylapatite coatings 121.4.1. Plasma spraying technique 121.4.2. Plasma-sprayed hydroxylapatite coatings 151.4.3. In-vitro and in-vivo behaviour of hydroxylapatite coatings 161.4.4. Bond coat for hy201.5. Brief summary of literature study 222. Materials and investigation methods 222.1. Materials 222.1.1.