Paper Title:

Thermal Processing of Calcium Phosphate Coatings on Zirconia Ceramics

Periodical Key Engineering Materials (Volumes 493 - 494)
Main Theme Bioceramics 23
Edited by Eyup Sabri Kayali, Gultekin Goller and Ipek Akin
Pages 462-466
DOI 10.4028/www.scientific.net/KEM.493-494.462
Citation Martin Štefanič et al., 2011, Key Engineering Materials, 493-494, 462
Online since October, 2011
Authors Martin Štefanič, Kristoffer Krnel, Tomaz Kosmač
Keywords Bioactive Coatings, Biomimetic Deposition, Calcium Phosphate, Thermal Treatment, Zirconia Ceramics
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Abstract

A two-step, biomimetic approach was applied for the rapid deposition of octacalcium phosphate (OCP) coatings on zirconia ceramics (Y-TZP). In the first step, sintered zirconia discs were immersed into a supersaturated Ca-P solution with pH=7.4 (CPS1). In the second step, the substrates were transferred from the CPS1 to another Ca-P solution with a lower pH (CPS2). After 6 hours of immersion in the CPS2, a thick coating consisting of large OCP crystals was obtained. Afterwards, the coated substrates were subjected to a thermal treatment in order to improve the attachment of the coating to the substrate.