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Novel calcium phosphate ceramics prepared by powder sintering and crystallization of glasses in the pyrophosphate region

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Abstract

Silica-free phosphate glasses containing small amounts of Na2O and TiO2 with the composition of Ca/P = 1 in atomic ratio were obtained. When powder compacts of the glasses were heated at 850 °C, they crystallized and subsequently sintered, resulting in glass-ceramics containing β–Ca3(PO4)2 and β–Ca2P2O7 crystalline phases. The glass-ceramics show a relatively high fracture toughness of KIC ≈ 2 MPa m0.5. By soaking in simulated body fluid at 37 °C, a calcium phosphate phase was formed newly on the surface of the glass-ceramics.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Nagoya Institute of Technology, 466-8555, Gokiso-cho, Showa-ku, Nagoya, Japan

    Toshihiro Kasuga & Yoshihiro Abe

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  1. Toshihiro Kasuga
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  2. Yoshihiro Abe
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Correspondence to Toshihiro Kasuga.

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Kasuga, T., Abe, Y. Novel calcium phosphate ceramics prepared by powder sintering and crystallization of glasses in the pyrophosphate region. Journal of Materials Research 13, 3357–3360 (1998). https://doi.org/10.1557/JMR.1998.0455

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  • DOI: https://doi.org/10.1557/JMR.1998.0455

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