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    Method of treating a ceramic body
    51.
    发明授权
    Method of treating a ceramic body 有权

    公开(公告)号：US10604451B2

    公开(公告)日：2020-03-31

    申请号：US15533578

    申请日：2015-12-08

    Applicant: Corning Incorporated

    Inventor： Monika Backhaus-Ricoult ,  Thomas Dale Ketcham

    IPC: C04B35/48 ,  C03B5/167 ,  C03B5/16 ,  C03B17/06 ,  C25B11/04 ,  H05B3/03

    Abstract: A method of treating a ceramic body in a glass making process includes delivering a molten glass to a heated ceramic body, the ceramic body including a ceramic phase and an intergranular glass phase, the molten glass being in contact with a surface of the ceramic body. The method further includes contacting the ceramic body with a first electrode and contacting the molten glass with a second electrode. The method further includes applying an electric field between the first electrode and the second electrode to create an electric potential difference across the ceramic body between the first and second electrodes, the electric potential difference being less than an electrolysis threshold of the ceramic phase and the intergranular glass phase. The intergranular glass phase demixes under driven diffusion in the applied electric field and mobile cations in the intergranular glass phase enrich proximate one of the first and second electrode.

    ALUMINA ISOPIPES FOR USE WITH TIN-CONTAINING GLASSES
    55.
    发明申请
    ALUMINA ISOPIPES FOR USE WITH TIN-CONTAINING GLASSES 审中-公开
    与含有玻璃的玻璃一起使用的铝材料

    公开(公告)号：US20160002085A1

    公开(公告)日：2016-01-07

    申请号：US14595805

    申请日：2015-01-13

    Applicant: CORNING INCORPORATED

    Inventor： Matthew John Dejneka ,  Benjamin Zain Hanson ,  Thomas Dale Ketcham

    IPC: C03B17/06

    CPC classification number: C03B17/064 ,  C03B5/43 ,  C03C3/091 ,  C04B35/10 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3222 ,  C04B2235/3232 ,  C04B2235/3241 ,  C04B2235/3244 ,  C04B2235/3272 ,  C04B2235/3284 ,  C04B2235/3286 ,  C04B2235/3293 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/449 ,  C04B2235/72 ,  C04B2235/80 ,  C04B2235/81 ,  C04B2235/95 ,  Y02P40/57

    Abstract: Isopipes (13) for making glass sheets using a fusion process are provided. The isopipes are made from alumina materials which have low levels of the elements of group IVB of the periodic chart, i.e., Ti, Zr, and Hf, as well as low levels of Sn. In this way, the alumina isopipes can be used with glasses that contain tin (e.g., as a fining agent or as the result of the use of tin electrodes for electrical heating of molten glass) without generating unacceptable levels of tin-containing defects in the glass sheets, specifically, at the sheets' fusion lines. The alumina isopipes disclosed herein are especially beneficial when used with tin-containing glasses that exhibit low tin solubility, e.g., glasses that have (RO+R2O)/Al2O3 ratios between 0.9 and 1.1, where, in mole percent on an oxide basis, (RO+R2O) is the sum of the concentrations of the glass' alkaline earth and alkali metal oxides and Al2O3 is the glass' alumina concentration.

    Abstract translation: 提供了使用熔融法制造玻璃板的等离子管（13）。 等压管由氧化铝材料制成，其具有低水平的周期图IVB族元素，即Ti，Zr和Hf，以及低水平的Sn。 以这种方式，氧化铝等压槽可以与含有锡的玻璃一起使用（例如，作为澄清剂或由于使用锡电极用于熔融玻璃的电加热）而不产生不可接受的含锡缺陷水平 玻璃片，具体地，在片材的熔合线上。 当与具有低锡溶解度的含锡玻璃一起使用时，本文公开的氧化铝等压管是特别有用的，例如，具有（RO + R 2 O）/ Al 2 O 3比率在0.9和1.1之间的玻璃，其中以氧化物为基准的摩尔百分比（ RO + R2O）是玻璃的碱土金属和碱金属氧化物的浓度之和，Al2O3是玻璃的氧化铝浓度。

    Solid state conversion of polycrystalline material
    60.
    发明授权
    Solid state conversion of polycrystalline material 有权

    公开(公告)号：US11584656B2

    公开(公告)日：2023-02-21

    申请号：US17221913

    申请日：2021-04-05

    Applicant: CORNING INCORPORATED

    Inventor： Thomas Dale Ketcham ,  Xinghua Li ,  Yan Wang

    IPC: C01F7/021

    Abstract: Systems, devices, and techniques for manufacturing a crystalline material (e.g., large crystal material) through the solid state conversion of a polycrystalline material are described. A device may be configured to concurrently heat a volume of ribbon, such as an alumina ribbon, using multiple heat sources. For example, a first heat source may heat a first volume of the ribbon and a second heat source may concurrently heat a second volume, for example, within the first volume, where the ribbon may comprise polycrystalline material. The concurrent heating may drive grain growth in the polycrystalline material in at least the second volume, which may convert the polycrystalline material to crystalline material having one or more grains that are larger than one or more grains of the polycrystalline material. The processed ribbon may include a large crystal material or a single crystal material.

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