The invention relates to transparent colorless spinel glass ceramics as well as preparation and application thereof. The glass ceramics contain (Zn, Mg) Al2O4 serving as a primary crystalline phase and tetragonal ZrO2 serving as a secondary crystalline phase, the catalyst does not contain TiO2, and the oxides contained in the catalyst meet the relational expression of Al2O3/(MgO + ZnO) = 1.40-2.00 in terms of molar percentage of oxides; the ratio of (K2O + Li2O + Na2O + B2O3)/(SiO2 + Al2O3) is equal to 0.10 to 0.20; the microcrystalline glass is obtained by heat treatment at the temperature of not more than 800 DEG C. The transmittance of the microcrystalline glass under light with the wavelength of 550 nm is 85.0% or above, an abrasive paper drop resistance test is conducted on the microcrystalline glass through 80-mesh abrasive paper, and the average abrasive paper drop resistance height of the microcrystalline glass is larger than or equal to 1.00 m; the glass ceramic has a Vickers hardness of 800 HV or more and a fracture toughness of 1.200 MPa.m < 1/2 > or more. The colorless transparent spinel microcrystalline glass with high transparency and excellent mass production can be obtained, and the toughened microcrystalline glass with excellent deep stress characteristics can be chemically toughened by utilizing the microcrystalline glass.

    本发明涉及一种透明无色尖晶石微晶玻璃及其制备和应用,该微晶玻璃其含有作为主晶相的(Zn,Mg)Al2O4和次晶相四方ZrO2;其不含TiO2,以氧化物的摩尔百分比计所含的氧化物满足关系式Al2O3/(MgO+ZnO)=1.40~2.00;(K2O+Li2O+Na2O+B2O3)/(SiO2+Al2O3)=0.10~0.20;该微晶玻璃是在不超过800℃温度下热处理得到。该微晶玻璃在550nm波长的光下,透过率为85.0%以上,对该微晶玻璃采用80目砂纸进行抗砂纸跌落测试,该微晶玻璃的平均抗砂纸跌落高度大于等于1.00m;维氏硬度在800HV以上,并且,该微晶玻璃的断裂韧性为1.200MPa·m1/2以上。通过本发明能够得到透明度高、量产性优异的无色透明尖晶石微晶玻璃,利用该微晶玻璃可以化学强化出具有优异深层应力特性的强化微晶玻璃。


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    Titel :

    Transparent colorless spinel microcrystalline glass and preparation and application thereof


    Weitere Titelangaben:

    一种透明无色尖晶石微晶玻璃及其制备和应用


    Beteiligte:
    HUANG HAO (Autor:in) / ZHOU JINGPENG (Autor:in) / TIAN QIAN (Autor:in) / XIE XIAOLAN (Autor:in) / XIANG WENHAO (Autor:in)

    Erscheinungsdatum :

    10.01.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    C03B Herstellung oder Formgebung von Glas, Mineral- oder Schlackenwolle , MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B64C AEROPLANES , Flugzeuge / G09F DISPLAYING , Anzeigewesen / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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