MULTICOMPONENT CERAMIC MATRIX COMPOSITES

    公开(公告)号:CA2076826A1

    公开(公告)日:1993-04-05

    申请号:CA2076826

    申请日:1992-08-25

    Applicant: CORNING INC

    Abstract: A fiber-reinforced ceramic matrix composite article comprising fiber-reinforced surface portions disposed on a ceramic core, the core differing in composition and high temperature properties from the surface portions and the fibers present in the surface portions being of a type normally subject to oxidative deterioration at high temperature, wherein the fibers in the surface portion are provided with protection from high temperature oxidative deterioration such that excellent strength and resistance to high temperature embrittlement are achieved for the composite as a whole.

    PROCESS FOR VITRIFYING INCINERATOR ASH

    公开(公告)号:CA2099460A1

    公开(公告)日:1994-01-03

    申请号:CA2099460

    申请日:1993-06-30

    Applicant: CORNING INC

    Abstract: The invention relates to a process of eliminating high chloride-containing incinerator ash and incinerator ash-residue mixtures, without generating excessive heavy metal-containing effluents during the actual vitrification of the ash. The process involves first pretreating the incinerator ash or ash-residue mixture, if needed, whereby the resultant ash contains less than about 3% halogen by weight and less than about 3% C.. Following the pretreatment, the ash is dried and then mixed with any additives needed to make up a vitrifiable batch mixture which will, when subsequently vitrified, form a glass possessing an excellent acid durability. A durability whereby such that the weight loss of the glass in 5% HCI solution at 95 C is 2.0 mg/cm2 or less in 24 hours. This durability results in minimal or non-detectable leaching of hazardous heavy metal or non-metallic specie and is sufficient enough durability such that the vitrified glass will easily pass the EPA's test for leachability. A suitable glass meeting the requirements is comprised of, expressed in terms of weight percent, about 47-76% SiO2, 0.8-29% Al2O3, 3.4-33.0% CaO, and optionally 0-25% R2O, wherein R2O is selected from the group consisting of Na2O, Li2O and K2O, 0-5% Fe2O3, 0-18% B2O3, 0-7% ZrO2, 0-7% TiO2, 0-10% MO, wherein MO is selected from the group consisting of MgO, BaO, ZnO or SrO, 0-8% of at least one member selected from the group consisting of PbO, CdO, Cr2O3, CuO and NiO, 0-4% SO3 with 0-4Y% Cl+F as batched.

    TRANSPARENT LEAD-FREE AND CADMIUM-FREE GLAZES

    公开(公告)号:CA2068440A1

    公开(公告)日:1993-01-02

    申请号:CA2068440

    申请日:1992-05-12

    Applicant: CORNING INC

    Abstract: This invention relates to glass frit compositions free from lead and cadmium which, when combined with an organic medium and fired to a glaze, yield a glaze exhibiting a grayish discoloration caused by the presence of a carbonaceous residue therein. The grayish discoloration can be eliminated by incorporating tin oxide in the frit composition which acts to catalyze the oxidation of and/or to directly oxidize that carbonaceous residue.

    ION-REMOVAL FROM WATER USING ACTIVATED CARBON ELECTRODES
    7.
    发明公开
    ION-REMOVAL FROM WATER USING ACTIVATED CARBON ELECTRODES 审中-公开
    ION从水中除去用活性炭电极

    公开(公告)号:EP1210162A4

    公开(公告)日:2004-10-13

    申请号:EP00948617

    申请日:2000-07-11

    Applicant: CORNING INC

    Abstract: An electrode (10) for deionization of water is made of a continuous activated carbon structure. The activated carbon is derived from a synthetic carbon precursor. The structure has openings, inlet (17) and outlet (16) ends such that water entering the inlet end passes through the openings (12) and exits through the outlet end (16), a conductive coating (17) on at least part of the outer surface of the structure, and a metal wire (19) in contact with the structure (10). A deionization system is made up of the electrodes (10) in series so that the outlet end of one electrode (10) is next to the inlet end of the nearest downstream electrode (10). The metal wire (19) of each electrode is connected to a power source. A method of removing ions from water involves removing air from the system, passing a current through the device, and passing a stream of water containing ions through it to remove the ions.

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