GLASS CERAMICS
    6.
    发明申请
    GLASS CERAMICS 审中-公开
    玻璃陶瓷

    公开(公告)号:WO2004071979A3

    公开(公告)日:2005-01-20

    申请号:PCT/GB2004000574

    申请日:2004-02-12

    CPC classification number: A61K6/0276 A61K6/0255 C03C4/0021 C03C10/16

    Abstract: The present invention relates to glass ceramics, in particular to machinable glass ceramics based on mica (eg fluormica) and to a process for preparing such glass ceramics by melting and crystallising magnesium fluoro alumino-silicate glasses and to their uses such as in dental crowns and inlays or industrially where there is a requirement for good electrical insulation and/or low thermal conductivity coupled with excellent machinability.

    Abstract translation: 本发明涉及玻璃陶瓷,特别涉及一种基于云母的可机加工的玻璃陶瓷(例如氟堇),以及通过熔融和结晶镁氟铝硅酸盐玻璃及其用途制备这种玻璃陶瓷的方法,例如在牙冠和 嵌体或工业上需要良好的电绝缘性和/或低导热性以及优异的机械加工性。

    HIGH STRENGTH CERAMISED GLASS AND METHOD FOR PRODUCTION THEREOF
    8.
    发明申请
    HIGH STRENGTH CERAMISED GLASS AND METHOD FOR PRODUCTION THEREOF 审中-公开
    高强度陶瓷玻璃及其生产方法

    公开(公告)号:WO02034685A1

    公开(公告)日:2002-05-02

    申请号:PCT/RU2001/000423

    申请日:2001-10-17

    CPC classification number: C03C10/16

    Abstract: The invention makes it possible to produce glassceramic materials having high strength characteristics. The inventive ceramised glass contains the following ingredients expressed in mass % : 57.0-70.0 SiO2, 12.7-19.0 Li2O, 2.0-4.0 NaPO3, 1.7-2.5 K2O, 0.9-1.2 CaF2, 4.0-8.0 LiF, 0.1-1.0 CeO2, 0.1-9.0 TiO2, 0.1-4.0 CaO, 0.1-4.0 MnO/MnO2, 0.1-4.0 Al2O3. The inventive ceramised glass is manufactured from lithium silicate glass at a temperature from 1300 DEG C to 1350 DEG C. Samples are formed with the aid of a cold mould. An annealing process is carried out at a temperature ranging from 400 DEG C to 420 DEG C. A heat treatment process after the annealing is carried out in two steps. In the first step, the temperature is raised to the range between 480 DEG C and 520 DEG C, a soaking process being carried out during 2-3 hours. In the second step, the temperature is raised to 680-720 DEG C, the soaking process is carried out during 2-3 hours at said temperature. Afterwards, the samples are cooled to the room temperature.

    Abstract translation: 本发明使得可以生产具有高强度特性的玻璃陶瓷材料。 本发明的陶瓷玻璃含有以质量%表示的以下成分:57.0-70.0SiO 2,12.7-19.0 Li 2 O,2.0-4.0 NaPO 3,1.7-2.5 K 2 O,0.9-1.2 CaF 2,4.0-8.0 LiF,0.1-1.0 CeO 2, 9.0 TiO2,0.1-4.0 CaO,0.1-4.0 MnO / MnO2,0.1-4.0Al2O3。 本发明的陶瓷化玻璃由温度为1300℃至1350℃的硅酸锂玻璃制成。借助冷模形成样品。 在400℃〜420℃的温度下进行退火处理。退火后的热处理工序分两步进行。 在第一步中,将温度升至480℃至520℃的范围内,在2-3小时内进行均热处理。 在第二步中,将温度升至680-720℃,在所述温度下2-3小时内进行均热处理。 然后将样品冷却至室温。

    TRANSPARENT LANTHANUM FLUORIDE GLASS-CERAMICS
    9.
    发明申请
    TRANSPARENT LANTHANUM FLUORIDE GLASS-CERAMICS 审中-公开
    透明的紫外线玻璃陶瓷

    公开(公告)号:WO99005071A1

    公开(公告)日:1999-02-04

    申请号:PCT/US1998/012262

    申请日:1998-06-11

    CPC classification number: C03C10/16 C03C4/0071

    Abstract: The present invention relates to a transparent glass-ceramic material which includes a glass matrix and a crystalline phase of lanthanum fluoride crystals in the glass matrix, where the transparent glass-ceramic material contains no silica. The present invention further relates to a method of producing the transparent glass-ceramic material.

    Abstract translation: 本发明涉及玻璃基体中的玻璃基体和氟化镧晶体的结晶相的透明玻璃 - 陶瓷材料,其中透明玻璃 - 陶瓷材料不含二氧化硅。 本发明还涉及制造透明玻璃 - 陶瓷材料的方法。

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