Thesis /

ROMDOC-THESIS-2010-037

Ceramici apatitice cu adaosuri de substituţie

Melinescu, Mihaela Alina (UPB)
2007-01-01

Abstract: Ceramic biocompatible materials represent a research field in progress. The present paper it proposed to synthesise nanometric hydroxyapatite powders, with or without additives, stable at high temperature. The selection of the studied composition samples was realised base on the quaternary diagrams of phase thermal equilibrium (original contribution), thus the compositions to be placed on the compatibility lines HAp-NC2P (as part of quaternary system Na2O-CaO-P2O5-H2O), HAp-C3M3P2 (as part of quaternary system MgO-CaO-P2O5-H2O), HAp-CS (as part of quaternary system SiO2-CaO-P2O5-H2O). As part of elaboration thesis, the nanometric stoichiometric hydroxyapatite powders were synthesised by hydrothermal treatment and microwave synthesis. The obtained hydroxyapatite by microwave synthesis, with or without additives, is stable at temperature of 1200°C, fact authenticated by X-ray diffraction and FTIR spectroscopy. The final exam of biocompatibility tests is passed of obtained bioceramics pre-eminent.

Keyword(s): Biomateriale -- Teze ; Ceramică -- Teză de doctorat
Note: Teoreanu, Ion

OPAC: See record in BC-UPB Web OPAC
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