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    • 9. 发明申请
    • AN ALUMINOSILICATE GLASS CONTAINING Li2O AND P2O5 USED FOR CHEMICAL TOUGHENING
    • 包含用于化学增韧的Li2O和P2O5的铝酸钠玻璃
    • WO2012126394A1
    • 2012-09-27
    • PCT/CN2012/072941
    • 2012-03-23
    • SCHOTT GLASS TECHNOLOGIES (SUZHOU) CO. LTD.ZHANG, GuangjunLAUTENSCHLAEGER, GerhardZIMMER, JoseBAESEL, Matthias
    • ZHANG, GuangjunLAUTENSCHLAEGER, GerhardZIMMER, JoseBAESEL, Matthias
    • C03C3/093C03C10/12C03B27/03
    • C03C3/118C03C3/097C03C10/0036C03C10/0054C03C21/002
    • The present invention discloses an aluminosilicate glass and a glass ceramics for chemical tempering, specifically a novel aluminosilicate glass comprising Li 2 O and P 2 O 5 for chemical tempering. The glass of the present invention can have a high ion exchange rate by adding 0.01-8 wt% of P 2 O 5 . The glass of the present invention comprises 2-6 wt% of Li 2 O, which can reduce the glass molten temperature and glass transition temperature. The glass of the present invention has a low glass transition temperature (Tg) of 480-590°C, and a glass hardness of at least 600 Kg/mm. The glass of the present invention has a large depth of the surface compressive layer (DoL) and a high surface compressive stress (CS) after being chemical tempered. After tempering in pure KNO 3 , a surface compressive layer of potassium ion can be formed with a DoL of at least 20 μm and a CS of at least 600 MPa. And tempering in mixed salts of KNO 3 and NaNO 3 or a two-step tempering by using KNO 3 and NaNO 3 can form potassium and sodium ion compressive layers at the same time with a DoL of at least 50 μm and a CS of at least 600 MPa. In addition, the aluminosilicate glass of the present invention can be further subjected to thermal treatment to convert to glass ceramics.
    • 本发明公开了一种铝硅酸盐玻璃和用于化学回火的玻璃陶瓷,特别是包括用于化学回火的Li 2 O和P 2 O 5的新型铝硅酸盐玻璃。 本发明的玻璃可以通过加入0.01-8重量%的P 2 O 5而具有高的离子交换速率。 本发明的玻璃包含2-6重量%的Li 2 O,这可以降低玻璃熔融温度和玻璃化转变温度。 本发明的玻璃的玻璃化转变温度(Tg)为480-590℃,玻璃硬度至少为600Kg / mm 2。 本发明的玻璃在化学回火后具有较大的表面压缩层深度(DoL)和高表面压缩应力(CS)。 在纯KNO3回火后,可以以至少20μm的DoL和至少600MPa的CS形成钾离子的表面压缩层。 并且通过使用KNO 3和NaNO 3的混合盐回火,或者通过使用KNO 3和NaNO 3进行两步回火,可以同时形成钾和钠离子压缩层,DoL为至少50μm,CS为至少600MPa。 此外,本发明的铝硅酸盐玻璃可以进一步进行热处理以转化成玻璃陶瓷。