Patent ID: 8664130
Filing Date: 2014-03-04
Classification: C03B,C03C,Y10T

Abstract:
1. An IX, β-spodumene glass-ceramic comprising: a. a nominal composition, in mole percent (mole %), comprises: b. a ratio: between 0.7 to 1.5; c. a ratio: greater than about 0.04; d. one or more β-spodumene solid solutions comprising: e. at least one Ti-containing crystalline phase comprising: f. an opacity comprising ≧about 85% over the wavelength range of 400-700 nm for an about 0.8 mm thickness; g. a depth of layer (DOL)≧about 2% of an overall thickness of an article of the IX, β-spodumene glass-ceramic and a compressive stress (σ h. optionally, one or more crystalline phase comprising: