Recently, Huawei published a new patent for glass-ceramic technology for which the company filed an application on March 23, 2021. The application number for the patent is CN112919810A. However, its simple legal status is still pending.
The components of the glass-ceramics are expressed in weight percentages and contain: SIO2 + A1203: 60~80%, P205: 2~10%, ZrO2: 0.5~10%, Ln203: greater than 0 but less than or equal to 10%, Li20 + Na20 + K20: 21.5 to 30%, where (Li20 + Na20 + K20)/ Ln203 is 2.5-25, and the Ln203 is one or more of La203, Gd203, Y203, and Yb203.
Additionally, the glass-ceramic obtained by this patent method is suitable for chemical strengthening and sturdy material design.
Lastly, the glass-ceramic and glass-ceramic products obtained by this invention have good mechanical properties that can be used for strong smartphone back, displays, or other electronic devices.