Synthesis and crystallization of CaTi4 (PO4)6 porous glass-ceramics by sol-gel method

Yuki KOMIYAMA; Hiroshi YASUDA; Hiroaki MATSUSHITA; Kazutoshi IWAMOTO; Akinori KATSUI

doi:10.2978/jsas.12.97

Synthesis and crystallization of CaTi₄ (PO₄)₆ porous glass-ceramics by sol-gel method

Yuki KOMIYAMA, Hiroshi YASUDA, Hiroaki MATSUSHITA, Kazutoshi IWAMOTO, Akinori KATSUI

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Keywords: CaTi₄(PO₄)₆, porous glass-ceramic, sol-gel method, bioceramics

JOURNAL FREE ACCESS

2000 Volume 12 Issue 1-2 Pages 97-98

DOI https://doi.org/10.2978/jsas.12.97

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Abstract

Porous glass-ceramics are prepared by crystallization and subsequent acid leaching of the CaO-TiO₂-P₂O₅ gels through a sol-gel route from Ca metal, Ti (tBu)₄ and H₃PO₄. The crystallization process of the gels having the different starting compositions is investigated using X-ray diffraction. The compositions of 45CaO-25TiO₂-30P₂O₅ (mol%) with excess P₂O₅ is found to be necessary to contain only CaTi₄ (PO₄)₆ as a residual crystal phase.

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