Fluorescence-suppressed quartz glass, and electric lamp with this quartz
glass
    21.
    发明授权
    Fluorescence-suppressed quartz glass, and electric lamp with this quartz glass 失效
    荧光抑制石英玻璃,和这种石英玻璃的电灯

    公开(公告)号:US5808411A

    公开(公告)日:1998-09-15

    申请号:US759439

    申请日:1996-12-05

    Abstract: To inhibit, or at least sharply attenuate, fluorescence of a quartz-glass velope (10) surrounding a light source (11), such as a halogen incandescent lamp, a high-pressure discharge lamp, or the like, when the quartz glass is subjected to ultraviolet (UV) radiation from the light source, and has been doped with a UV radiation absorbing material, typically a cerium, or cerium-titanium doping, the quartz-glass envelope is additionally doped with barium and boron. The barium/boron in the doping is, preferably, present in quantities of between about 0.008 and 1.25%, by weight, with reference to the undoped quartz glass. Barium metaborate can be used, optionally together with praseodymium to attenuate the fluorescence. Preferably, barium and boron form a combined doping substance with cerium, in form of a cerium aluminate and metaborate, added to the starting material for the quartz glass, and before the quartz glass is fused from quartz sand or pulverized quartz crystal.

    Abstract translation: 为了抑制或至少急剧衰减围绕光源(11)的石英玻璃外壳(10)的荧光,例如卤素白炽灯,高压放电灯等,当石英玻璃是 经受来自光源的紫外(UV)辐射,并且已经掺杂有紫外线吸收材料,通常为铈或铈 - 钛掺杂,石英玻璃外壳另外掺杂有钡和硼。 相对于未掺杂的石英玻璃,掺杂中的钡/硼优选以约0.008和1.25重量%的量存在。 可以使用偏硼酸钡,任选地与镨一起减弱荧光。 优选地,钡和硼与被添加到石英玻璃的起始材料中以及石英玻璃从石英砂或粉碎的石英晶体熔融之前形成具有铈铝酸盐和偏硼酸铈形式的铈的组合掺杂物质。

    Fixation by ion exchange of toxic materials in a glass matrix
    22.
    发明授权
    Fixation by ion exchange of toxic materials in a glass matrix 失效
    通过玻璃基质中有毒物质的离子交换固定

    公开(公告)号:US4469628A

    公开(公告)日:1984-09-04

    申请号:US370437

    申请日:1982-04-21

    Abstract: This invention relates to the immobilization of toxic, e.g., radioactive, materials in a silicate glass or silica gel matrix for extremely long periods of time. Toxic materials, such as radioactive wastes containing radioactive cations, which may be in the form of liquids, or solids dissolved or dispersed in liquids or gases, are incorporated into a glass or silica gel matrix, having alkali metal, Group Ib metal and/or ammonium cations bonded to silicon atoms of said glass or silica gel through divalent oxygen linkages, by a process which involves the ion exchange of said toxic or radioactive cations with said alkali metal, Group Ib metal and/or ammonium cations to bind said toxic or radioactive cations to silicon atoms of said glass or silica gel through said silicon-bonded divalent oxygen linkages. Thereafter, the resulting glass or silica gel now characterized by toxic or radioactive cations bonded to silicon atoms through divalent oxygen linkages can be stored, or packaged in suitable containers, or disposed of as by burial, and/or sintered to collapse the pores thereof.

    Abstract translation: 本发明涉及将硅酸盐玻璃或硅胶基质中的有毒的,例如放射性物质固定在极长时间内。 将含有放射性阳离子的放射性废物(其可以是液体的形式)或溶解或分散在液体或气体中的固体的有毒材料掺入玻璃或硅胶基质中,其具有碱金属,Ib族金属和/或 通过涉及所述有毒或放射性阳离子与所述碱金属,第Ib族金属和/或铵阳离子离子交换以结合所述有毒或放射性的方法的方法,通过二价氧键与所述玻璃或硅胶的硅原子键合的铵阳离子 通过所述硅键合的二价氧键与所述玻璃或硅胶的硅原子的阳离子。 此后,所得到的玻璃或硅胶的特征在于通过二价氧键与硅原子键合的有毒或放射性阳离子,可以储存或包装在合适的容器中,或通过埋置和/或烧结来处理以使其孔隙折叠。

    Apparatus for producing and casting liquid silicon
    23.
    发明授权
    Apparatus for producing and casting liquid silicon 失效
    用于生产和浇铸液态硅的设备

    公开(公告)号:US4272488A

    公开(公告)日:1981-06-09

    申请号:US075644

    申请日:1979-09-14

    Abstract: The method and apparatus for producing liquid silicon of high purity and for casting silicon. Hydrogen and a hydrogenated silane in gaseous state are mixed, preferably with a source of a small amount of oxygen, in a heated chamber producing the liquid silicon, with the exhaust gases bubbling out of the melt under a baffle. The chamber for the melt of liquid silicon preferably is lined with silicon dioxide. The liquid silicon may be used in making high purity vitreous silica and may be used in making castings of silicon. In making castings, the liquid silicon is accumulated in a second chamber and is periodically drawn from the second chamber into a third chamber which contains the mold for the casting.

    Abstract translation: 用于生产高纯度硅和硅铸造液态硅的方法和装置。 氢气和气态的氢化硅烷在产生液体硅的加热室中混合,优选用少量氧气源,废气在挡板下方从熔体中冒出。 用于液体硅熔体的室优选用二氧化硅衬里。 液硅可用于制造高纯度二氧化硅玻璃,可用于制造硅铸件。 在制造铸件时,液态硅积聚在第二腔室中,并且从第二腔室周期性地拉入包含用于铸造的模具的第三腔室。

    Process for producing liquid silicon
    24.
    发明授权
    Process for producing liquid silicon 失效
    液硅生产工艺

    公开(公告)号:US4176166A

    公开(公告)日:1979-11-27

    申请号:US800191

    申请日:1977-05-25

    Abstract: The method and apparatus for producing liquid silicon of high purity and for casting silicon. Hydrogen and a hydrogenated silane in gaseous state are mixed, preferably with a source of a small amount of oxygen, in a heated chamber producing the liquid silicon, with the exhaust gases bubbling out of the melt under a baffle. The chamber for the melt of liquid silicon preferably is lined with silicon dioxide. The liquid silicon may be used in making high purity vitreous silica and may be used in making castings of silicon. In making castings, the liquid silicon is accumulated in a second chamber and is periodically drawn from the second chamber into a third chamber which contains the mold for the casting.

    Abstract translation: 用于生产高纯度硅和硅铸造液态硅的方法和装置。 氢气和气态的氢化硅烷在产生液体硅的加热室中混合,优选用少量氧气源,废气在挡板下方从熔体中冒出。 用于液体硅熔体的室优选用二氧化硅衬里。 液硅可用于制造高纯度二氧化硅玻璃,可用于制造硅铸件。 在制造铸件时,液态硅积聚在第二腔室中,并且从第二腔室周期性地拉入包含用于铸造的模具的第三腔室。

    Process for increasing the annealing point of 96% silica glass
    25.
    发明授权
    Process for increasing the annealing point of 96% silica glass 失效
    提高96%石英玻璃退火点的工艺

    公开(公告)号:US4116657A

    公开(公告)日:1978-09-26

    申请号:US794062

    申请日:1977-05-05

    Inventor: Thomas H. Elmer

    CPC classification number: C03C3/06 C03C2201/10 C03C2201/50 C03C2203/52

    Abstract: A process for producing transparent high-annealing-point 96% silica glass comprising the steps of depositing a carbon film on the pore walls of the glass, heating the glass and film under non-oxidizing conditions, and removing the carbon film by oxidation, is described.

    Abstract translation: 一种生产透明高退火点96%二氧化硅玻璃的方法,包括以下步骤:在玻璃的孔壁上沉积碳膜,在非氧化条件下加热玻璃和薄膜,并通过氧化除去碳膜,是 描述。

    Phase separatable borosilicate glass compositions
    26.
    发明授权
    Phase separatable borosilicate glass compositions 失效
    相分离硼硅酸盐玻璃组合物

    公开(公告)号:US3972720A

    公开(公告)日:1976-08-03

    申请号:US562064

    申请日:1975-03-26

    Abstract: Thermally stable, mechanically strong microporous glass articles with large pore volumes, surface areas, and varying pore sizes, and methods for making such articles are disclosed. In particle form, such as beads, the microporous glass articles are useful as catalyst supports in applications such as petroleum catalytic refiners, chemical processes and motor vehicle catalytic mufflers. The mechanical strength and the dimensional stability of the microporous glass articles at elevated temperatures can be improved if the articles are preshrunk, such as by brief exposure to high temperatures, before their intended use, and can be improved even further if treated with certain metal oxides.

    Abstract translation: 公开了具有大孔体积,表面积和不同孔径的热稳定的机械强度微孔玻璃制品及其制造方法。 在颗粒形式如珠粒中,微孔玻璃制品可用作催化剂载体,例如石油催化精炼机,化学工艺和汽车催化消声器。 如果在预期的使用之前,如在短时间暴露于高温下预制物品,则可以提高微孔玻璃制品在高温下的机械强度和尺寸稳定性,并且如果用某些金属氧化物 。

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