| 摘要 |
A phosphate glass ceramic which can be utilized especially as biomaterial in medicine and biology. The object of the invention is to provide a glass ceramic extensively adapted to bone, possessing adjustable biologically active characteristics. Another object of the invention is to produce a glass ceramic free of SiO2 or low in SiO2, of high P2O5 and CaO content, possessing adjustable biologically active characteristics. The object is solved, whereby an initial glass of the composition having the mass percentages of Al2O3 3-21, CaO 8-26, R2O 10-25, P2O5 43-58, is provided under the condition that R2O can contain up to 25% of mass of Na2O and up to 18% of mass of K2O, and is thermally treated after melting, to provide the new phosphate glass ceramic. The main crystal phases are apatite and aluminiumorthophosphate. The phosphate glass ceramic can contain additions of SiO2, B2O3, F-, MgO, FeO, Fe2O3, TiO2.
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