Canasite-apatite glass-ceramics

Details Canasite-apatite glass-ceramics Canasite-apatite glass-ceramics

1993-09-01

1994-08-09

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Devitrified glass-ceramics

501 10, 501 57, C03C 1016, C03C 3112

Patent

active

053366425

ABSTRACT:
A glass-ceramic biomaterial having high strength and toughness, a family of glasses from which the glass-ceramic biomaterial can be produced, and a method of production. The material has a primary crystal phase of F-canasite and a secondary crystal phase of F-apatite. The glass family is SiO.sub.2 --CaO--Na.sub.2 O--K.sub.2 O--P.sub.2 O.sub.5 --F. The method may be a single stage heat treatment, or a two stage involving an initial nucleation and a subsequent crystallization.

REFERENCES:
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patent: 4386162 (1983-05-01), Beall
patent: 4397670 (1983-08-01), Beall
patent: 4536481 (1985-08-01), Flannery et al.
patent: 4643982 (1987-02-01), Kasuga et al.
patent: 4652534 (1987-03-01), Kasuga
patent: 4775646 (1988-10-01), Hench et al.
patent: 5536480 (1985-08-01), Flannery et al.

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