Chemically strengthenable self-crystallizing glass ceramic and preparation method thereof
A glass-ceramic, self-crystallization technology, applied in glass manufacturing equipment, glass forming, glass rolling, etc., can solve problems such as increasing melting temperature, high surface compressive stress, and increasing production costs
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[0025] The present invention will be described in detail below in conjunction with specific embodiments.
[0026] The present invention provides a chemically strengthenable self-crystallizing glass ceramic, the glass ceramic having crystals with an average crystal size range of 6nm-50nm, more preferably 10nm-30nm; the main crystal phase of the crystal is β quartz solid solution, Xia At least one of stone and nepheline solid solution, the crystals account for the mass percentage of the glass ceramic in the range of 30% to 90%, more preferably 50% to 80%. At this time, the visible light of the 1mm thick glass ceramic is transparent The overrate ranges from 90% to 92%. The composition of glass ceramics has the characteristics of high aluminum, high lithium and low sodium, and no ZrO 2 , TiO 2 , Fluoride and other crystal nucleating agents. The composition of the glass ceramic contains 8% to 13% Li in mole percent 2 O, more preferably 9mol%-12mol%, higher content of Li 2 O can incre...
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