Glass-ceramic and its production and use
    1.
    发明申请
    Glass-ceramic and its production and use 有权
    玻璃陶瓷及其生产和使用

    公开(公告)号:US20050277539A1

    公开(公告)日:2005-12-15

    申请号:US10725924

    申请日:2003-12-03

    摘要: The invention encompasses a glass-ceramic comprising a continuous glass phase and a crystal phase comprising tetragonal leucite, wherein the glass-ceramic has a crack-free glass phase and a crystal phase comprising leucite crystals distributed essentially homogeneously in the glass phase. The crystal phase has a particle size distribution made of from about 5% to about 70% of a first group of leucite crystals having particle sizes of

    摘要翻译: 本发明包括包含连续玻璃相的玻璃陶瓷和包含四方晶镁石的晶相,其中玻璃陶瓷具有无裂纹的玻璃相和包含基本均匀地分布在玻璃相中的白液晶的晶相。 晶相具有由具有颗粒大小为<1μm的第一组白云石晶体的约5%至约70%的粒度分布,以及具有颗粒的第二组白云石晶体的约30%至约95% 大小> = 1 mum。 玻璃 - 陶瓷中的Li 2 O 2的比例优选低于0.5重量%。 优选的是,不仅玻璃相也是晶相基本上没有裂纹。 相应的玻璃陶瓷特别适用于牙科领域,特别是面向陶瓷。

    Glass-ceramic and its production and use
    2.
    发明授权
    Glass-ceramic and its production and use 有权
    玻璃陶瓷及其生产和使用

    公开(公告)号:US07091142B2

    公开(公告)日:2006-08-15

    申请号:US10725924

    申请日:2003-12-03

    摘要: The invention encompasses a glass-ceramic comprising a continuous glass phase and a crystal phase comprising tetragonal leucite, wherein the glass-ceramic has a crack-free glass phase and a crystal phase comprising leucite crystals distributed essentially homogeneously in the glass phase. The crystal phase has a particle size distribution made of from about 5% to about 70% of a first group of leucite crystals having particle sizes of

    摘要翻译: 本发明包括包含连续玻璃相的玻璃陶瓷和包含四方晶镁石的晶相,其中玻璃陶瓷具有无裂纹的玻璃相和包含基本均匀地分布在玻璃相中的白液晶的晶相。 晶相具有由具有颗粒大小为<1μm的第一组白云石晶体的约5%至约70%的粒度分布,以及具有颗粒的第二组白云石晶体的约30%至约95% 大小> = 1 mum。 玻璃 - 陶瓷中的Li 2 O 2的比例优选低于0.5重量%。 优选的是,不仅玻璃相也是晶相基本上没有裂纹。 相应的玻璃陶瓷特别适用于牙科领域,特别是面向陶瓷。

    Dental application device
    3.
    发明申请
    Dental application device 审中-公开
    牙科应用装置

    公开(公告)号:US20050076808A1

    公开(公告)日:2005-04-14

    申请号:US10499537

    申请日:2003-06-23

    IPC分类号: A61C5/06 A61C13/083 C09K3/00

    CPC分类号: A61C13/0835 A61C5/62

    摘要: The invention comprises a discharge device for dental purposes. This discharge device is filled with a dental ceramic material, preferably an opaque in dispersible form, in particular in the form of a solution or suspension. The discharge device is in particular a spray can.

    摘要翻译: 本发明包括用于牙科用途的排出装置。 该放电装置填充有牙科陶瓷材料,优选为分散形式的不透明的,特别是溶液或悬浮液的形式。 排放装置特别是喷雾罐。

    Ceramic dental restoration
    4.
    发明授权
    Ceramic dental restoration 有权
    陶瓷牙修复

    公开(公告)号:US06342302B1

    公开(公告)日:2002-01-29

    申请号:US09438537

    申请日:1999-11-12

    IPC分类号: A61C1308

    摘要: A ceramic restoration based on a leucitic glass-ceramic, which is characterized in that the glass-ceramic includes by way of components 40-95 wt.-% SiO2 5-25 wt.-% Al2O3 5-25 wt.-% K2O 0-25 wt.-% Na2O 0-20 wt.-% CaO 0-8 wt.-% B2O3 0-0.5 wt.-% P2O5 0-3 wt.-% F, in that it contains, as sole crystalline phase, leucite in a total proportion from 20 to 45 wt.-%, at least 80% of the theoretically producible quantity of leucite being present, and in that it exhibits a linear coefficient of thermal expansion &agr;(20-500° C.) from 12.5·10−6 to 15.5·10−6 K−1. This glass-ceramic is particularly suitable for processing as pressed ceramic and can be advantageously faced with dental ceramic that exhibits a linear coefficient of thermal expansion &agr;(20-500° C.) from 13.5·10−6 to 17.0·10−6 K−1.

    摘要翻译: 一种基于白云石玻璃陶瓷的陶瓷修复体,其特征在于玻璃陶瓷包括作为唯一结晶相的组分,其总含量为20至45重量%的白云母,至少 存在理论上可生产的水镁石的80%,并且其表现出从12.5.10-6至15.5.10-6K-1的线性热膨胀系数α(20-500℃)。 这种玻璃陶瓷特别适用于作为压制陶瓷的加工,并且可以有利地面对表现出从13.5.10-6至17.0.10-6K的线性热膨胀系数α(20-500℃)的牙科陶瓷 -1。