CRISTOBALITE CRYSTAL PHASE-CONTAINING LITHIUM DISILICATE GLASS CERAMICS WITH HIGH STRENGTH AND AESTHETICS AND METHOD FOR PREPARING SAME
    6.
    发明公开
    CRISTOBALITE CRYSTAL PHASE-CONTAINING LITHIUM DISILICATE GLASS CERAMICS WITH HIGH STRENGTH AND AESTHETICS AND METHOD FOR PREPARING SAME 有权
    方石英结晶相的含具有高强度和美观性和方法二硅酸锂陶瓷及其制造

    公开(公告)号:EP3015436A1

    公开(公告)日:2016-05-04

    申请号:EP15766374.1

    申请日:2015-06-02

    申请人: Hass Co., Ltd.

    摘要: Exemplary embodiments of the present invention provide lithium disilicate crystalline glass containing cristobalite crystal phase for high strength and aesthetic traits and its manufacturing process thereof. More specifically, exemplary embodiments of the present invention provide the high strength and aesthetic lithium disilicate crystalline glass, one kind of dental restoration materials, and its manufacturing method which induces the growth of the different crystal phase, cristobalite, from glass with lithium disilicate crystal.
    Exemplary embodiments of the present invention propose a lithium disilicate crystalline glass containing cristobalite crystal phase in glass matrix in the system of 11 - 13 wt% Li 2 O, 70.0 - 77.0 wt% SiO 2 , 2 - 3wt% P 2 O 5 working as nuclear formation agent, 2 - 5 wt% Al 2 O 3 to increase glass transition temperature and softening temperature, as well as chemical durability of the glass, 2.0- 3.0 wt% ZrO 2 , 1 - 4 wt% colorants, not including MgO, ZnO, F, and La 2 O 3 , because they reduce light transmittance.

    摘要翻译: 本发明的示范实施例提供的焦硅酸锂晶体玻璃方石英含结晶相的高强度和美学特性和它的制造工艺物。 更具体地,本发明的示例性实施例提供了高强度和美学二硅酸锂的结晶玻璃,一种牙科用修复材料,它的制造方法,其与二硅酸锂晶体诱导不同的晶相,方石英的生长,从玻璃。 本发明的示范性实施例提出了一种二硅酸锂的结晶玻璃包含在玻璃基体的方英石的结晶相在11系统 - 13重量%的Li 2 O,70.0 - 77.0%(重量)的SiO 2,2 - 3%(重量)P 2 O 5的工作如 核形成剂,2 - 5重量%的Al 2 O 3以提高玻璃化转变温度和软化温度,以及玻璃的化学耐久性,2.0- 3.0重量%的ZrO 2,1 - 4%(重量)的着色剂,不包括的MgO, 氧化锌,F,和La 2 O 3,因为它们减少了透光率。

    Boule oscillation patterns for producing fused silica glass
    10.
    发明公开
    Boule oscillation patterns for producing fused silica glass 失效
    Vorform mit Oszillationsmustern zur Herstellung von Quarzglas

    公开(公告)号:EP1524246A1

    公开(公告)日:2005-04-20

    申请号:EP04029793.9

    申请日:1996-09-11

    发明人: Maxon, John E.

    摘要: Oscillation/rotation patterns for improving the off axis homogeneity of fused silica boules are provided. The patterns reduce the optical effects of periodic off-axis striae by decreasing the ratio of Δn striae to Δz striae , where Δn striae is the average peak-to-valley magnitude of the striae and Δz striae is there average peak-to-peak period. The oscillation/rotation patterns have long repeat periods and cause soot-producing burners to trace out substantially spiral-shaped patterns on the surface of the boule.

    摘要翻译: 提供了用于改善熔融二氧化硅颗粒的离轴均匀性的振荡/旋转图案。 这些图案通过降低DELTA纹理与DELTA zstriae的比例来减少周期性离轴条纹的光学效应,其中DELTA nstriae是条纹的平均峰谷值,DELTA zstriae是平均峰到峰期 。 振荡/旋转图案具有长的重复周期,并且导致产生烟灰的燃烧器能够在芯棒的表面上追踪基本上螺旋形的图案。