Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10666267 | Materials Letters | 2005 | 4 Pages |
Abstract
A bioactive zirconia/alumina composite for orthopedic applications has been developed. The composite was obtained by uniaxial pressing of powder mixtures. To bioactivate the composite a biomimetic method, consisting in the immersion of samples in SBF and 1.4 SBF, was used. The immersion procedure was performed by two different routes: (i) single immersion (21 days in SBF) and (ii) re-immersion method (7 days in SBF+14 days in 1.4 SBF). No change was observed on the surface of the samples immersed for 21 days in SBF. However, a dense and homogeneous bonelike apatite layer was formed on the ceramic composite by using the re-immersion method. The average value for the thickness of the apatite layer was 20 μm.
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Authors
D.A. Cortes, A.A. Nogiwa, J.M. Almanza, S. Ortega,