Characterization of hydroxyapatite of bone ash for use as Bioceramic

Reference Presenter Authors
(Institution)
Abstract
02-065 Patricia Camargo de Oliveira Miyahara, R.Y.(Universidade Estadual do Centro-Oeste); Bonadio, T.G.(Universidade Estadual do Centro-Oeste); Freitas, V.F.(Universidade Estadual do Centro-Oeste); Oliveira, P.C.(Unicentro); Gomes, A.(Unicentro); Bioceramics have shown good results, when used as materials for bone reconstruction, being one of the most used is hydroxyapatite, which has been highlighted amid application studies aiming at bone replacement. However, it does not have high strength, and needs to use some other materials as a reinforcement or flux phase. In this work, proof bodies had been manufactured, with pure hydroxyapatite and with different concentrations of Kaolim, quartz and feldspar, by milling, and sintered in different temperatures varying between 1100 and 1300ºC. The characterization of crystalline phases was studied by X ray difraction analyses of the material sintered in different temperatures. A SEM was also used to evaluate the morphology. The obtained final ceramic properties were evaluate by Archimedes Methods and the final mechanical property was evaluate by compression strength. The results shows that the bioceramic produced in this work has high properties, like 21,3 ± 3 MPa of strength and 1,2 ± 0,3 % of water absorption. Other results can be promising for different uses in bone implants .
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