Leucite-containing phosphosilicate glass-ceramic

Details Leucite-containing phosphosilicate glass-ceramic Leucite-containing phosphosilicate glass-ceramic

C - Chemistry, Metallurgy

03

C

C03C 10/10 (2006.01) A61K 6/027 (2006.01) A61K 6/06 (2006.01) C03C 10/00 (2006.01) C03C 10/16 (2006.01)

Patent

CA 2153130

A leucite-containing phosphosilicate glass-ceramic is described which, in addition to a leucite crystalline phase and at leat one further crystalline phase, also contains one or more glass phases. The glass-ceramic comprises the following components: SiO2 49.0 -57.5 % by wt. Al2O3 11.4 -21.0 % by wt. P2O5 0.5 -5.5 % by wt. CaO 2.5 -11.5 % by wt. K2O 9.0 -22.5 % by wt. Na2O 1.0 -9.5 % by wt. Li2O 0 -2.5 % by wt. B2O3 0 -2.0 % by wt. TiO2 0 -3.0 % by wt. ZrO2 0.8 -8.5 % by wt. CeO2 0 -3.0 % by wt. F 0.25 -2.5 % by wt. La2O3 0 -3.0 % by wt. ZnO 0 -3.0 % by wt. BaO 0 -3.0 % by wt. MgO 0 -3.0 % by wt. SrO 0 -3.0 % by wt. Such glass-ceramics are suitable for use in dentistry, for example, to make crowns, bridges and inlays.

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