Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 32, Issue 10, Pages 2113-2120Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2011.12.020
Keywords
Composites; Al2O3; ZrO2; Apatite; Mechanical properties
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Alumina zirconia composites with submicrometric grain size were surface modified with the purpose to induce bioactivity using several chemical treatments. Among them, a quick attack by phosphoric acid induced on Zirconia Toughned Alumina (80-20 wt%) the formation of apatite-like calcium phosphate phases after immersion in simulated body fluid, indicating bioactivity induction. Such a treatment does not reduce the strength, hardness and ageing properties of this ceramic material, making it a suitable method for biomedical applications. Surface properties, topography and microstructure of oxide ceramics are also discussed. (C) 2012 Elsevier Ltd. All rights reserved.
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