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US 2014/0271565 A1Published application
Fluorapatite glass-ceramics
AssigneeUniversity of Iowa Research Foundation
InventorsIsabelle Denry, Julie Holloway
Life of this patent
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Abstract
The present invention provides a highly-sintered fluorapatite glass-ceramic comprising a high Ca/Al or Sr/Al mole-ratio, that possesses a microstructure that induces apatite/bone deposition.
Claims26
A fluorapatite glass-ceramic body prepared by a process comprising:
- (a) providing powdered glass by heating a SiO2—Al2O3—P2O5—MgO—Na2O—K2O—CaO—CaF2 mixture having a CaO:Al2O3 mole-ratio of about 2.5-30:1;
- (b) compacting the powdered glass into a solid form;
- and
- (c) heating the solid form to about 650-1050° C. for a time sufficient to yield a sintered fluorapatite glass-ceramic body.
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A fluorapatite glass-ceramic body prepared by a process comprising:
- (a) producing powdered glass by heating a mixture of SiO2—Al2O3—P2O5—MgO—Na2O—K2O—CaF2, comprising SrO or a combination of CaO and SrO having a mole ratio of SrO to Al2O3 of about 2.5-30:1;
- (b) compacting the powdered glass into a solid form;
- and
- (c) heating the solid form to about 650° C.-1050° C. for a time sufficient to yield a sintered fluorapatite glass-ceramic body.
1 more element
Dependencies are inferred from the claim text.