Paper Title:
Bioactive Zirconia Composites
  Abstract

Zirconia-alumina composites with additions of a CaO-SiO2 glass are prepared by uniaxial pressing and sintering. In order to promote bioactivity, the composites are biomimetically treated. The effect of immersion time in simulated body fluids (SBF) and that of the presence of a wollastonite powder bed, as a calcium ion provider, on the apatite forming ability are investigated. The influence of replacing the simulated body fluids each 7-day-period for a more concentrated solution is also studied. A bonelike apatite layer is observed after 21 days of immersion when the SBF is renewed, whether the bed of wollastonite powder is present or not. However, a thicker layer is formed by using wollastonite and the agglomerates of the apatite layer are finer on the composites containing CaO-SiO2 glass.

  Info
Periodical
Edited by
H. Balmori-Ramírez, M. Brito, J.G. Cabañas-Moreno, H.A. Calderón-Benavides, K. Ishizaki and A. Salinas-Rodríguez
Pages
193-198
DOI
10.4028/www.scientific.net/MSF.509.193
Citation
A. A. Nogiwa-Valdez, D. A. Cortés-Hernández, J.M. Almanza-Robles, A. Chávez-Valdez, "Bioactive Zirconia Composites", Materials Science Forum, Vol. 509, pp. 193-198, 2006
Online since
March 2006
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$32.00
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