Transparent oxyfluoride glass-ceramic composition and process for making

    公开(公告)号:AU5597698A

    公开(公告)日:1998-07-31

    申请号:AU5597698

    申请日:1997-12-15

    Applicant: CORNING INC

    Abstract: A transparent class ceramic composition includes an oxide component, a rare earth component, a halide component, and a substantially pure rare earth-halide (e.g., REF3) crystal component. A method for making a transparent oxyfluoride glass includes preparing an oxyfluoride glass containing rare earth ions by a conventional melting method and subjecting the glass to a heat treatment thereby precipitating fluoride fine crystals containing a large amount of rare earth ions.

    NANOCRYSTALLITE GLASS-CERAMIC AND METHOD FOR MAKING SAME
    33.
    发明申请
    NANOCRYSTALLITE GLASS-CERAMIC AND METHOD FOR MAKING SAME 审中-公开
    纳米玻璃陶瓷及其制造方法

    公开(公告)号:WO2006009683A3

    公开(公告)日:2007-02-15

    申请号:PCT/US2005020907

    申请日:2005-06-13

    Abstract: Glass-ceramic materials are fabricated by infiltrating a porous glass matrix with a precursor for the crystalline phase, drying, chemically reacting the precursor, and firing to produce a consolidated glass-ceramic material. The pore size of the glass matrix constrains the growth and distribution of nanocrystallite size structures. The precursor infiltrates the porous glass matrix as an aqueous solution, organic solvent solution, or molten salt. Chemical reaction steps may include decomposition of salts and reduction or oxidation reactions. Glass-ceramics produced using Fe-containing dopants exhibit properties of magnetism, low Fe2+ concentrations, optical transparency in the near-infrared spectrum, and low scattering losses. Increased surface area permits expanded catalytic activity.

    Abstract translation: 通过用结晶相的前体渗透多孔玻璃基质,干燥,使前体化学反应和烧制以产生固结的玻璃陶瓷材料来制造玻璃陶瓷材料。 玻璃基体的孔径限制了纳米晶体尺寸结构的生长和分布。 前体以水溶液,有机溶剂溶液或熔融盐渗透多孔玻璃基质。 化学反应步骤可包括盐的分解和还原或氧化反应。 使用含Fe掺杂剂制造的玻璃陶瓷具有磁性,Fe2 +浓度低,近红外光谱的光学透明性和低散射损失等特性。 增加的表面积允许扩展催化活性。

    TUNGSTATE, MOLYBDATE, VANADATE BASE GLASSES
    37.
    发明公开
    TUNGSTATE, MOLYBDATE, VANADATE BASE GLASSES 审中-公开
    眼镜WOLF RAMAT,钼酸盐,钒酸盐的基础

    公开(公告)号:EP1252114A4

    公开(公告)日:2006-07-26

    申请号:EP00982120

    申请日:2000-11-16

    Applicant: CORNING INC

    CPC classification number: C03C13/048 C03C3/122 C03C4/0071

    Abstract: Alkali tungstate, molybdate and vanadate glasses, and telecommunications components embodying such glasses, the compositions of the glasses consisting essentially of 15-70 mol percent of at least one oxide selected from the group consisting of WO3, MoO3 and VO2.5, 0-35 % CrO3, 0-15 % UO3, the total WO3 plus MoO3 plus VO2.5 plus CrO3 plus UO3 being 50-70 %, 20-50 % R2O where R represents at least two elements selected from the group consisting of Li, Na, K, Rb, Cs, Ag and Tl, and optionally containing 0-10 % MO where M is selected from the groups of elements consisting of Ca, Ba, Sr, Mg, Cd, Pb, 0-5 % X2O3 where x is at least one element selected from the group consisting of Al, Ga, In and Bi, 0-5 % of at least one transition metal oxide, 0-15 % P2O5 and/or TeO2 and 0-5 % of a rare earth oxide selected from the lanthanide series.

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