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Title of Journal: J Mater Sci Mater Med

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Abbravation: Journal of Materials Science: Materials in Medicine

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Kluwer Academic Publishers

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DOI

10.1006/jmbi.2001.4865

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1573-4838

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Bonelike apatite coating on MgPSZ/AlSubscript2

Authors: A A Nogiwa D A Cortés
Publish Date: 2006/11/22
Volume: 17, Issue: 11, Pages: 1139-1144
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Abstract

A biomimetic method was used to promote bioactivity on zirconia/alumina composites The composites were composed of 80 vol MgPSZ and 20 vol Al2O3 Samples of these bioinert materials were immersed in simulated body fluid SBF for 7 days on either a bed of wollastonite ceramics or bioactive glass After those 7 days the samples were immersed in a more concentrated solution 14 SBF for 14 days Experiments were also performed without using a bioactive system during the first stage of immersion A bonelike apatite layer was formed on the surface of all the materials tested using wollastonite the bioactive layer was thicker and its morphology was close to that observed on the existing bioactive systems A thinner apatite layer consisting of small agglomerates was obtained using bioactive glass The thickness of the ceramic layers was within the range of 15 to 30 μm

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