The present invention relates to an alkali-free glass containing, in mol% on the basis of oxides, 63%-75% of SiO2, 10%-16% of Al2O3, 0-5% of B2O3, 0.1%-15% of MgO, 0.1%-12% of CaO, 0-8% of SrO, and 0-6% of BaO, with [MgO]/[CaO] being 1.5 or less, the value of formula (A) being 82.5 or more, the value of formula (B) being 690-800, the value of formula (C) being 100 or less, the value of formula (D) being 20 or less, the Young's modulus being 83 GPa or more, and the Young's modulus being 90 GPa or more. And the surface devitrification viscosity [eta] c is 104.2 dPa.s or more.

    本发明涉及一种无碱玻璃,其中,以氧化物基准的摩尔%计,所述无碱玻璃包含63%~75%的SiO2、10%~16%的Al2O3、0~5%的B2O3、0.1%~15%的MgO、0.1%~12%的CaO、0~8%的SrO、和0~6%的BaO,并且[MgO]/[CaO]为1.5以下,式(A)的值为82.5以上,式(B)的值为690以上且800以下,式(C)的值为100以下,式(D)的值为20以下,所述无碱玻璃的杨氏模量为83GPa以上,并且表面失透粘度ηc为104.2dPa·s以上。


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    Title :

    Alkali-free glass


    Additional title:

    无碱玻璃


    Contributors:

    Publication date :

    2024-08-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C03C Chemische Zusammensetzungen für Gläser, Glasuren oder Emails , CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / C03B Herstellung oder Formgebung von Glas, Mineral- oder Schlackenwolle , MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL / G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von... / G03F Fotomechanische Herstellung strukturierter oder gemusterter Oberflächen, z.B. zum Drucken, zum Herstellen von Halbleiterbauelementen , PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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