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Media type:
E-Article
Title:
Structural Analysis of Hydroxyapatite Sinters with Addition of ZrO2 Phase
Contributor:
Dudek, Agata;
Nitkiewicz, Zygmunt
Published:
Trans Tech Publications, Ltd., 2010
Published in:
Materials Science Forum, 638-642 (2010), Seite 658-663
Language:
Without Specification
DOI:
10.4028/www.scientific.net/msf.638-642.658
ISSN:
1662-9752
Origination:
Footnote:
Description:
A range of benefits of implants containing hydroxyapatites results, among other things, from their phase composition and degree of porosity. Poor mechanical properties of hydroxyapatite (HA) ceramics considerably limit its wider use. One of the methods for improvement of poor HA properties is addition of solid solution of Y2O3 in ZrO2. [1-8]. The investigations focused on compositions of ceramic powders based on hydroxyapatite with addition of zirconium dioxide (ZrO2 + 8%wt. Y2O3 and ZrO2 + 20%wt. Y2O3). The powders were axially compacted and then sintered at the temperature of 13000C for two hours. After the process of sintering the samples were subjected to analysis of microstructure, phase composition and geometrical measurements in order to determine volume density in each sample.