Quartz glass crucible and method for the production thereof
    62.
    发明申请
    Quartz glass crucible and method for the production thereof 有权
    石英玻璃坩埚及其生产方法

    公开(公告)号:US20050178319A1

    公开(公告)日:2005-08-18

    申请号:US10512114

    申请日:2003-04-03

    Abstract: A known quartz glass crucible for crystal pulling consists of a crucible wall, having an outer layer which is provided in an external area thereof with a crystallisation promoter which results in crystallisation of quartz glass, forming cristobalite when the quartz glass crucible is heated according to specified use in crystal pulling. The aim of the invention is to provide a quartz glass crucible which has a long service life. As a result, the crystallisation promoter contains, in addition to a silicon, a first component which acts as a reticulating agent in quartz glass and a second component which is free of alkali metals and which acts as an agent forming separating points in quartz glass. The above mentioned components are contained and incorporated into a doping area (8) of the outer layer (6) having a layer thickness of more than 0.2 mm.

    Abstract translation: 已知的用于晶体拉制的石英玻璃坩埚由坩埚壁组成,外壁具有结晶促进剂,结晶促进剂导致石英玻璃结晶,当石英玻璃坩埚根据规定加热时形成方英石 用于水晶拉。 本发明的目的是提供一种使用寿命长的石英玻璃坩埚。 结果,除了硅之外,结晶促进剂还含有在石英玻璃中充当网状剂的第一组分和不含碱金属的第二组分,其作为在石英玻璃中形成分离点的试剂。 上述组分被包含并且结合到层厚度大于0.2mm的外层(6)的掺杂区域(8)中。

    Yellow high silica glass
    67.
    发明授权
    Yellow high silica glass 失效
    黄色高硅胶玻璃

    公开(公告)号:US5248638A

    公开(公告)日:1993-09-28

    申请号:US863002

    申请日:1992-04-06

    CPC classification number: C03C23/0095 C03C3/06 C03C2201/32 C03C2201/40

    Abstract: A yellow color by transmitted light is produced in a high silica glass by impregnating a porous, high silica glass with a solution of chromium and zinc salts and consolidating the glass under oxidizing conditions to dope the glass with chromium and zinc oxides, the chromium being predominantly in the hexavalent state. Optionally, an aluminum salt is included in the impregnating solution. The glass has particular utility as a filter for lighting purposes.

    Abstract translation: 通过在高二氧化硅玻璃中通过用铬和锌盐溶液浸渍多孔高硅石玻璃并在氧化条件下固化玻璃以用铬和锌氧化物掺杂玻璃来产生黄色的颜色,铬主要是 在六价状态。 任选地,浸渍溶液中包含铝盐。 该玻璃具有用作照明用途的过滤器的特殊用途。

    Fabrication methods of doped silica glass and optical fiber preform by
using the doped silica glass
    68.
    发明授权
    Fabrication methods of doped silica glass and optical fiber preform by using the doped silica glass 失效
    通过掺杂石英玻璃制备掺杂石英玻璃和光纤预制棒的方法

    公开(公告)号:US4414012A

    公开(公告)日:1983-11-08

    申请号:US300296

    申请日:1981-09-08

    Abstract: Manufacturing method of doped silica glass suitable for optical fiber wherein quartz powder or SiO.sub.2 glass fine particles are exposed to a gas for producing the doped silica glass containing SiCl.sub.4, a gaseous additive and water vapor (H.sub.2 O) to add the dopant to the glass body, and then the resulting glass body is fused at a high temperature, thereby producing a transparent doped silica glass in which the production of the glass particles, the addition of the dopant, and the vitrification of the glass body are carried out by separate steps under respective suitable conditions. The manufacturing speed is remarkably increased because of the separate steps. The content of the dopant is not limited, but can be adjusted with any desired amount by changing the reaction time of dissolution. Dopant components like PbO.sub.2, SnO.sub.2, ZnO which were typically not added to the glass body can now be added thereto. Also, a method of manufacturing an optical fiber preform is disclosed wherein the doped silica glass is deposited and fused on a starting material which is inclined by an angle within a range of 5.degree.-90.degree. with respect to a blow-off direction of the flow of the doped silica glass to form a transparent doped silica glass body having a uniform outer diameter and a uniform boundary surface at a high synthesizing speed. This latter method aids mass production of optical fibers at low cost.

    Abstract translation: 适用于光纤的掺杂二氧化硅玻璃的制造方法,其中将石英粉末或SiO 2玻璃微粒暴露于用于生产含SiCl4,气态添加剂和水蒸汽(H 2 O)的掺杂石英玻璃的气体中以将掺杂剂添加到玻璃体中, 然后将所得的玻璃体在高温下熔融,由此制备透明掺杂的石英玻璃,其中玻璃颗粒的产生,掺杂剂的添加和玻璃体的玻璃化在各自的步骤下通过各自的步骤进行 适合条件。 由于单独的步骤,制造速度显着增加。 掺杂剂的含量没有限制,但可以通过改变溶解的反应时间以任何所需的量进行调节。 现在可以向其中加入通常不加入到玻璃体中的掺杂剂组分如PbO 2,SnO 2,ZnO。 此外,公开了一种制造光纤预制棒的方法,其中将掺杂的石英玻璃沉积并熔合在起始材料上,所述起始材料相对于所述材料的吹出方向倾斜5°-90°的范围内的角度 掺杂石英玻璃的流动,以形成具有均匀外径和高合成速度的均匀边界表面的透明掺杂石英玻璃体。 后一种方法有助于以低成本大量生产光纤。

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