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The Structure and Properties of Biogenic Hydroxyapatite Ceramics: Microwave and Conventional Sintering

  • Refractory and Ceramic Materials
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Powder Metallurgy and Metal Ceramics Aims and scope

The structure and properties of biogenic hydroxyapatite ceramics for medical applications produced by microwave and conventional sintering at 800, 900, 1000, and 1100°C are studied. It is established that microwave sintering allows a 33 to 50% decrease in the minimum grain size, which can be attributed to the influence of microwaves on the material structure compared to conventional sintering. The bioceramic samples produced by microwave sintering have stable porosity (~40%) and 30–59 MPa compressive strength, being close to that of native bone and 1.6 to 2 times higher than the compressive strength of samples prepared by conventional sintering. In vitro studies have shown that the solubility of bioceramics sintered in a microwave oven in saline is 1.7 to 5.5 times higher than the solubility of samples produced by conventional sintering. Thus, microwave sintering allows obtaining biogenic hydroxyapatite ceramics with improved mechanical and biological properties for filling bone defects in orthopedics and traumatology.

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Authors and Affiliations

  1. National Technical University of Ukraine ‘Kiev Polytechnic Institute’, Kiev, Ukraine

    G. B. Tovstonog

  2. Frantsevich Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev, Ukraine

    O. E. Sych & V. V. Skorokhod

Authors
  1. G. B. Tovstonog
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  2. O. E. Sych
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  3. V. V. Skorokhod
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Correspondence to O. E. Sych.

Additional information

Translated from Poroshkovaya Metallurgiya, Vol. 53, Nos. 9–10 (499), pp. 92–102, 2014.

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Tovstonog, G.B., Sych, O.E. & Skorokhod, V.V. The Structure and Properties of Biogenic Hydroxyapatite Ceramics: Microwave and Conventional Sintering. Powder Metall Met Ceram 53, 566–573 (2015). https://doi.org/10.1007/s11106-015-9651-5

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  • DOI: https://doi.org/10.1007/s11106-015-9651-5

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