Corning Incorporated

Taheisha Linette Werner

Adam James Ellison

Lisa Anne Moore

Disclosed herein are opaque glass-ceramics comprising at least one nepheline crystal phase and comprising from about 30 mol % to about 65 mol % SiO, from about 15 mol % to about 40 mol % AlO, from about 10 mol % to about 20 mol % (Na+KO), and from about 1 mol % to about 10 mol % (ZnO+MgO). Also disclosed herein are opaque-glass ceramics comprising at least one nepheline crystal phase and at least one spinel-structure phase doped with at least one colorant chosen from transition metals and rare earth elements. Further disclosed herein are methods for making these opaque glass-ceramics.

Opaque colored glass-ceramics comprising nepheline crystal phases

Disclosed herein are opaque glass-ceramics comprising at least one nepheline crystal phase and comprising from about 30 mol % to about 65 mol % SiO, from about 15 mol % to about 40 mol % AlO, from about 10 mol % to about 20 mol % (NaO+KO), and from about 1 mol % to about 10 mol % (ZnO+MgO). Also disclosed herein are opaque-glass ceramics comprising at least one nepheline crystal phase and at least one spinel-structure phase doped with at least one colorant chosen from transition metals and rare earth elements. Further disclosed herein are methods for making these opaque glass-ceramics.

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Corning, NY, United States of America

Taheisha Linette Werner