Preparation of HA-Zirconia Nanocomposite for Dental Applications

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Abstract:

Hydroxyapatite (HA)-zirconia nanocomposite is synthesised by mixing as-synthesised HA with commercially available yttria-stabilised zirconia nanopowder using wet ball milling. The sample is consolidated using uniaxial pressing followed by cold isostatic pressing. The composites containing 0 wt%, 0.05 wt%, 0.1 wt%, 0.5 wt%, 1 wt%, and 5 wt% zirconia are prepared and sintered at 1100, 1200, and 1300 °C. Results from the X-ray diffraction (XRD) and density analyses show that the proposed approach produced a highly dense sample (>98.8%) with minimum amount of impurity, which is suitable for dental applications.

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35-39

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February 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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