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CN108101373A 白色不透明β-锂辉石/金红石玻璃-陶瓷、包含该玻璃陶瓷的制品及其制造方法 有权

白色不透明β-锂辉石/金红石玻璃-陶瓷、包含该玻璃陶瓷的制品及其制造方法
摘要：
揭示了可晶化玻璃、玻璃陶瓷、可离子交换的玻璃陶瓷以及经离子交换的玻璃陶瓷。所述玻璃陶瓷表现出β锂辉石ss作为主晶相。这些玻璃和玻璃陶瓷以摩尔％计包含：62‑75SiO2、10.5‑17Al2O3、5‑13Li2O、0‑4ZnO、0‑8MgO、2‑5TiO2、0‑4B2O3、0‑5Na2O、0‑4K2O、0‑2ZrO2、0‑7P2O5、0‑0.3Fe2O3、0‑2MnOx和0.05‑0.2SnO2。此外，这些玻璃和玻璃陶瓷表现出以下标准：[Li2O+Na2O+K2O+MgO+ZnO]/[Al2O3+B2O3]之比为0.7‑1.5；[TiO2+SnO2]/[SiO2+B2O3]之比大于0.04。此外，所述玻璃陶瓷在400‑700纳米波长范围内对于约0.8毫米厚度表现出不透明度≥约85％，以10°颜色观察角并用包括镜面反射的CIE发光体F02测得，a*为‑3至+3，b*为‑6至+6，L*为88‑97。
摘要（英）：

Crystallizable glasses, glass ceramics, IXable glass ceramics, and IX glass ceramics are disclosed. The glass ceramics exhibit beta spodumene ss as the predominant crystalline phase. These glasses andglass ceramics, in mole%, include: 62-75 SiO2, 10.5-17 Al2O3, 5-13 Li2O, 0-4 ZnO, 0-8 MgO, 2-5 TiO2, 0-4 B2O3, 0-5 Na2O, 0-4 K2O, 0-2 ZrO2, 0-7 P2O5, 0-0.3 Fe2O3, 0-2 MnOx, and 0.05-0.2 SnO2. Additionally, these glasses and glass ceramics exhibit the following criteria a ratio: [Li2O+Na2O+K2O+MgO+ZnO]/[Al2O3+B2O3] between 0.7 to 1.5, a ratio: [TiO2+SnO2]/[SiO2+B2O3] greater than 0.04. Furthermore, the glass ceramics exhibit an opacity>= about 85% over the wavelength range of 400-700nm for an about 0.8mm thickness and colors an observer angle of 10 DEG and a CIE illuminant F02 determined withspecular reflectance included of a* between -3 and +3, b* between -6 and +6, and L* between 88 and 97.

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