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公开(公告)号:US4921823A
公开(公告)日:1990-05-01
申请号:US304921
申请日:1989-02-01
IPC分类号: B01J23/34 , B01J4/04 , B01J19/24 , B01J21/04 , B01J23/42 , B01J23/46 , B01J35/06 , B01J37/02 , B01J37/34 , C07C1/00 , C07C1/24 , C07C4/06 , C07C5/03 , C07C5/333 , C07C9/04 , C07C9/06 , C07C11/04 , C07C11/06 , C07C67/00
CPC分类号: B01J4/04 , B01J19/2475 , B01J21/04 , B01J35/06 , B01J37/348
摘要: A catalyst device comprises a porous catalytically active inorganic membrane, means for presenting a fluid reactant to a first surface of the membrane and means for recovering a fluid reaction product from the second surface of the membrane. The membrane is preferably an anodic aluminum oxide membrane with a deposit of catalytically active material present within the pores, preferably concentrated in the ends of the pores adjacent the second surface of the membrane.
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公开(公告)号:US4687551A
公开(公告)日:1987-08-18
申请号:US786334
申请日:1985-10-10
CPC分类号: B01D71/025 , B01D67/0065 , C04B38/0025 , C25D11/024 , C25D11/045 , C04B2111/00801
摘要: An anodic aluminum oxide film (12) has a system of larger pores (14) extending in from one face (16) and interconnecting with a system of smaller pores (24) extending in from the other face (26). The film is made by anodizing an aluminum metal substrate, then reducing the applied voltage at a rate to permit partial or complete recovery of the oxide film, either continuously or incrementally in small steps down to a level preferably below 3 V, and separating the oxide film from the substrate.
摘要翻译: 阳极氧化铝膜(12)具有从一个面(16)延伸并且与从另一个面(26)延伸的较小孔(24)的系统相互连接的较大孔(14)的系统。 该膜通过阳极氧化铝金属基底制成,然后以允许氧化膜部分或完全回收的速率降低施加的电压,连续或递增地以小的步骤降至优选低于3V的水平,并分离氧化物 薄膜从基材。
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公开(公告)号:US4935139A
公开(公告)日:1990-06-19
申请号:US354743
申请日:1989-05-22
CPC分类号: B01D67/0048 , B01D67/0041 , B01D67/0046 , B01D69/12 , B01D71/02 , B01D2323/06 , B01D2325/02 , B01D2325/04 , B01D2325/24
摘要: A composite membrane comprises a porous metal support and at least one porous inorganic film of sintered non-metallic particles carried by the support and overlying a surface thereof. The film is in longitudinal compression at ambient temperature, such that any cracks tend not to propagate. The composite membranes are mechanically robust and chemically inert and useful as filters e.g. in the food industry. They may be made by applying a sol or suspension of particles to form a layer on the porous metal support and heating the coated support to partly sinter the particles of the layer.
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公开(公告)号:US5376442A
公开(公告)日:1994-12-27
申请号:US37712
申请日:1993-03-24
CPC分类号: B01D67/0048 , B01D67/0041 , B01D67/0046 , B01D69/12 , B01D71/02 , B01D2325/04 , Y10T428/249957 , Y10T428/24997 , Y10T442/174 , Y10T442/198
摘要: A composite membrane comprises an inorganic support having interstices and porous inorganic films of sintered non-metallic particles carried by the support and bridging the interstices thereof. The support is preferably a woven metal mesh, with the films substantially coplanar with the support. The films may be formed by applying a suspenion of refractory particles in a polymer solution to bridge the interstices of the support, and heating the films to partly sinter the particles. Since the films are in compression at ambient temperature, any cracks that may be formed by damage to the composite membrane tend not to propagate.
摘要翻译: 复合膜包括具有间隙的无机载体和由载体承载并桥接其间隙的烧结非金属颗粒的多孔无机膜。 载体优选为编织金属网,其中膜与载体基本上共面。 可以通过将聚合物溶液中的耐火颗粒悬浮液悬浮以支撑载体的间隙,并加热膜以部分地烧结颗粒来形成膜。 由于膜在环境温度下被压缩,所以可能通过损坏复合膜形成的任何裂纹都不会传播。
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公开(公告)号:US4781766A
公开(公告)日:1988-11-01
申请号:US55436
申请日:1987-05-29
申请人: Allen M. Barnett , Robert B. Hall , Jeff W. Edington , Alexander P. Davidson , William A. Tiller
发明人: Allen M. Barnett , Robert B. Hall , Jeff W. Edington , Alexander P. Davidson , William A. Tiller
IPC分类号: H01L31/0224 , H01L31/0392 , H01L31/06 , H01L31/18
CPC分类号: H01L31/06 , H01L31/022425 , H01L31/0392 , H01L31/03921 , Y02E10/541 , Y10S257/928
摘要: A thin-film solar cell is made up of semiconductor layers formed on an aluminum silicon eutectic alloy substrate. The substrate includes an aluminum oxide insulator containing electrically conducting silicon nucleation sites which is interposed between the electrical contact of the substrate and the adjacent semiconductor. Grain boundaries and voids terminate on the insulator. The solar cell is fabricated by oxidizing the aluminum-silicon substrate to form a layer of aluminum oxide with unactivated silicon site material dispersed therein and activating the silicon nucleation sites during growth of the semiconductor layers.
摘要翻译: 薄膜太阳能电池由形成在铝硅共晶合金基板上的半导体层构成。 衬底包括氧化铝绝缘体,其包含导电硅成核位置,其插入在衬底的电接触件和相邻的半导体之间。 晶界和空隙终止于绝缘体上。 太阳能电池通过氧化铝硅衬底以形成分散在其中的未活化硅部分材料的氧化铝层并在半导体层生长期间激活硅成核位置来制造。
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公开(公告)号:US5605628A
公开(公告)日:1997-02-25
申请号:US349985
申请日:1994-12-06
申请人: Alexander P. Davidson , Michael P. Thomas , Steven W. Summers , David R. Cowieson , Peter J. Williams
发明人: Alexander P. Davidson , Michael P. Thomas , Steven W. Summers , David R. Cowieson , Peter J. Williams
CPC分类号: B01D69/12 , B01D67/0041 , B01D67/0048 , B01D71/02 , B01D2323/06 , B01D2325/02 , B01D2325/04 , B01D2325/24 , Y10T428/249957 , Y10T428/249964 , Y10T428/24997 , Y10T442/129 , Y10T442/2115 , Y10T442/2123
摘要: A composite membrane comprises an inorganic support having interstices and porous inorganic films of sintered non-metallic particles carried by the support and bridging the interstices thereof. The support is preferably a woven metal mesh, with the films substantially coplanar with the support. The films may be formed by applying a suspension of refractory particles in a polymer solution to bridge the interstices of the support, and heating the films to partly sinter the particles. Since the films are in compression at ambient temperature, any cracks that may be formed by damage to the composite membrane tend not to propagate.
摘要翻译: 复合膜包括具有间隙的无机载体和由载体承载并桥接其间隙的烧结非金属颗粒的多孔无机膜。 载体优选为编织金属网,其中膜与载体基本上共面。 可以通过将聚合物溶液中的耐火颗粒的悬浮液施加以支撑载体的间隙并加热膜以部分地烧结颗粒来形成膜。 由于膜在环境温度下被压缩,所以可能通过损坏复合膜形成的任何裂纹都不会传播。
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