摘要:
An apparatus for electrical isolation of metallic hardware is provided and includes an item of hardware and an isolation sheet disposed in contact with the item of hardware. The isolation sheet includes first and second opposing sides at least one of which is anodized.
摘要:
An aluminum alloy matrix composite containing alumina or aluminum silicate reinforcement whereby said composite material exhibits wetting between said reinforcement and said aluminum alloy. The composite comprises (a) alumina or aluminosilicate reinforcement; (b) a matrix of aluminum or aluminum alloy; and (c) an intelayer of mixed oxides of aluminum and boron wherein the interlayer of mixed oxides of aluminum and boron includes but is not limited to the following oxides, B.sub.2 O.sub.3, Al.sub.2 O.sub.3, 2Al.sub.2 O.sub.3.B.sub.2 O.sub.3 and 9Al.sub.2 O.sub.3 2B.sub.2 O.sub.3 at the interface between said reinforcement and said matrix.
摘要翻译:一种含有氧化铝或硅酸铝增强物的铝合金基质复合材料,其中所述复合材料在所述增强材料和所述铝合金之间表现出润湿。 复合材料包括(a)氧化铝或硅铝酸盐增强物; (b)铝或铝合金基体; 和(c)铝和硼的混合氧化物的智能层,其中铝和硼的混合氧化物的中间层包括但不限于以下氧化物:B 2 O 3,Al 2 O 3,2Al 2 O 3 .B 2 O 3和9Al 2 O 3 2B 2 O 3在所述增强和 表示矩阵。
摘要:
A treated permeable inorganic membrane having good chemical stability over a pH range of from 1 to 14. The monomolecular layer of organic acid material is formed on the membrane surface by contacting phosphonic acid having the formula RPO(OH).sub.2 ; phosphinic acid having the formula RR'PO(OH); monocarboxylic acids having the formula RCOOH; dicarboxylic acids having the formula R"(COOH).sub.2 ; or boronic acid having the formula RB(OH).sub.2.
摘要:
An active material is disclosed comprising a metal oxide/hydroxide surface having chemically bonded to reactive sites thereon, a monolayer of a phosphorus-containing organic material comprised of a phosphorus-containing group and a carbon-containing group. The bond to the metal oxide/hydroxide surface is formed by reaction of the phosphorus-containing group with the metal oxide/hydroxide surface, so that the carbon-containing group of the material is oriented away from the metal oxide/hydroxide surface.
摘要:
An active material is disclosed comprising metal oxide/hydroxide particles having chemically bonded to reactive sites on a surface thereof, a monolayer of a phosphorous-containing organic material comprised of a phosphorous-containing group and a carbon-containing group. The bond to the metal oxide/hydroxide surface is formed by reaction of the phosphorous-containing group with the metal oxide/hydroxide particle surface, so that the carbon-containing group of the material is oriented away from the metal oxide/hydroxide surface.
摘要:
Electrical joint compounds for the protection of electrical connections are formed from a solution of polymer dissolved in solvent with or without conductive filler. Partially cured thermosetting polymers are preferred as they flow under service conditions to better seal the electrical joints. Thermosetting polymers which cure by an addition mechanism are preferred over those which cure by condensation, and polyimides are most preferred.
摘要:
A thermal management system for use in a vacuum is provided including a heat generation device and a heat dissipation device. An extruded first heat transfer panel is mounted to a surface of the heat generation device and an extruded second heat transfer panel is mounted to a surface of the heat dissipation device. The first and second heat transfer panels are positioned between the heat generation device and the heat dissipation device. A portion of the first heat transfer panel and a portion of the second heat transfer panel are interposed.
摘要:
A laminate suitable for vehicular applications includes at least two sheets of aluminum alloy and an adhesive layer between the sheets bonding them together. An oxide layer on surfaces of the sheets is treated with a phosphorous acid electrolyte, so that a coordination number of four predominates for the aluminum-oxygen-phosphorous bond. Equivalent bonding strengths in the laminates are obtained in substantially less time with phosphorous acid treatment compared with phosphoric acid treatment.
摘要:
Disclosed is a method of producing a functionalized layer and an aluminum hydroxide layer on an aluminum substrate, the aluminum hydroxide layer located between the substrate and the functionalized layer. The method comprises the steps of subjecting an aluminum substrate to a hydrothermal treatment in an aqueous solution having a pH in the range of 2 to 14 to form a layer of aluminum hydroxide on said substrate and thereafter treating said aluminum substrate with a phosphorus-containing acid selected from phosphinic and phosphonic acid to form a functionalized layer on said aluminum hydroxide layer, the functionalized layer comprised of the reaction product of said acid and the layer of aluminum hydroxide.
摘要:
An active material and method of making same are disclosed comprising a metal oxide/hydroxide surface having chemically bonded to reactive sites thereon, a layer of a perfluorinated organic material formed by reacting with the metal oxide/hydroxide a perfluorinated organic acid comprised of an acid group and a perfluorinated carbon-containing group. The bond to the metal oxide/hydroxide surface is formed by reaction of the acid group with the metal oxide/hydroxide surface, so that the perfluorinated carbon-containing group is oriented away from the metal oxide/hydroxide surface. The perfluorinated organic acid may be a perfluorinated phosphonic acid, a perfluorinated phosphinic acid, a perfluorinated carboxylic acid, or a mixture of two or more of the acids.