Characterization of the Apatite Formation on the Surfaces of Zirconia and Alumina Ceramics in Body Environments

Amanda Abati Aguiar; Valter Ussui; Christiane Ribeiro; M. A. Scapin; Dolores Ribeiro Ricci; Nelson B. Lima

doi:10.4028/www.scientific.net/MSF.591-593.697

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Characterization of the Apatite Formation on the Surfaces of Zirconia and Alumina Ceramics in Body Environments
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HomeMaterials Science ForumMaterials Science Forum Vols. 591-593Characterization of the Apatite Formation on the...

Characterization of the Apatite Formation on the Surfaces of Zirconia and Alumina Ceramics in Body Environments

Abstract:

Induction of an apatite-forming ability on a 100% Y2O3-ZrO2, 100% Al2O3, and 80/20 and 20/80 wt% of zirconia-alumina (Y2O3-ZrO2-Al2O3) composite polycrystals via chemical treatment with 5M H3PO4 have been investigated. The chemical treatments produced Zr-O surface functional groups, which are known to be effective for apatite nucleation in simulated body fluid. It’s believed that Al-OH surface functional groups are not effective for apatite nucleation. I this work was shown that apatite nucleates in substrate of alumina treat and untreated chemically. This implies that Al- OH functional groups are effective for apatite nucleation.