摘要:
A Raney-type metal porous material of which at least the inner surface of the pores constituting the porous structure is an alloy of the skeletal metal constituting it and a metal differing from the skeletal metal. The invention has made it possible to alloy a Raney-type metal with a porous structure, to realize a novel method of enabling remarkable enhancement of the function and the activity of the alloy based on the porous structure thereof, and to use the alloy as catalysts, etc.
摘要:
A porous material comprising vapor grown carbon fiber in an amount of 10 to 90 mass %, fiber filaments of the carbon fiber forming a three-dimensional network and having a diameter of 1 to 1,000 nm, an aspect ratio of 5 to 15,000, a specific surface area (by BET method) of 2 to 2,000 m 2 /g, and the ratio of the intensity of the peak at 1,360 cm -1 in a Raman scattering spectrum of the carbon fiber to that of the peak at 1,580 cm -1 in the spectrum(I 1360 /I 1580 ) is 0.1 to 2.0, wherein the porosity of the porous material (V/V 0 ) is 0.50 to 0.99 and a specific surface area is 5 to 1,000 m 2 /g; and a production method and use thereof. The vapor grown carbon fiber impregnated in the porous material of the present invention does not contain aggregates and a three-dimensional network is formed between the fiber filaments, wherein length of each of the fiber filaments is maintained.; Therefore, the vapor grown carbon fiber enables to readily produce a composite material (porous material), in which even a small amount of addition of vapor grown carbon fiber can exhibit sufficient effect.
摘要翻译:包括蒸汽的多孔材料在按质量计的10至90%的量的生长的碳纤维中,碳纤维形成的三维网络和具有直径为1至1,000nm的纤维丝,在5至15,000的纵横比,特定的 的2至2,000米2 /克的表面积(通过BET法),和该峰的强度中的1360厘米比率-1中的碳纤维的峰的拉曼散射光谱的那样在1580厘米-1在 频谱(I 1360 / I 1580)为0.1〜2.0,worin多孔材料的孔隙率(V / V 0)为0.50〜0.99和的比表面积是5〜1000米2 /克; 及其制造方法及其用途。 在一个三维网络本发明不包含聚集体的多孔材料和浸渍的气相生长碳纤维在纤维丝之间形成,每个所述纤维丝的长度worin维持。 因此,气相生长碳纤维使容易地制造复合材料(多孔材料),其中甚至除了气相生长碳纤维的少量可以表现出充分的效果。
摘要:
A metallic composite material according to the present invention is a metallic composite material, which comprises: a composited portion having a sintered body 1 being completed by sintering a metallic powder of a first metal, and a second metal 2' infiltrating into the pores of the superficial-layer portion of the sintered body 1 at least; and a parent-material portion having the second metal 2 covering the composited potion, and is characterized in that the sintered body 1 is completed by sintering the metallic powder together with a melt-disappearing material, which possesses a melting point being the sintering temperature of the metallic powder or less, or a burn-disappearing material, which burns to disappear at the sintering temperature or less; and the metallic composite material is equipped with a fitting portion at the interface between the composited portion and the parent-material portion, fitting portion which is formed by infiltrating the second metal 2' into the pores and additionally getting the second metal 2' into parts 3 where the melt-disappearing material has been melted to disappear or the burn-disappearing material has been burned to disappear. By means of this novel construction, it is possible to suppress the occurrence of cracks and peeling, which occurs in metallic composite material. In the present invention, the melt-disappearing material can preferably include an alloying component element, which forms an alloy with a major component element of the metallic powder. When major component element is iron and the alloying component element is copper, the strength of the fitting portion improves.
摘要:
A porous material comprising vapor grown carbon fiber in an amount of 10 to 90 mass%, fiber filaments of the carbon fiber forming a three-dimensional network and having a diameter of 1 to 1,000 nm, an aspect ratio of 5 to 15,000, a specific surface area (by BET method) of 2 to 2,000 m2/g, and the ratio of the intensity of the peak at 1,360 cm-1 in a Raman scattering spectrum of the carbon fiber to that of the peak at 1,580 cm -1 in the spectrum(I1360/I1580) is 0.1 to 2.0, wherein the porosity of the porous material (V/V0) is 0.50 to 0.99 and a specific surface area is 5 to 1,000 m2/g; and a production method and use thereof. The vapor grown carbon fiber impregnated in the porous material of the present invention does not contain aggregates and a three-dimensional network is formed between the fiber filaments, wherein length of each of the fiber filaments is maintained. Therefore, the vapor grown carbon fiber enables to readily produce a composite material (porous material), in which even a small amount of addition of vapor grown carbon fiber can exhibit sufficient effect.
摘要:
The invention relates to a method for fabricating an open-porous molded body which is formed from nickel or iron and at least another element which form solid solutions or intermetallic phases as well as a molded body which is correspondingly fabricated, and the use thereof. During the fabrication it is proceeded then, such that a coating with a metallic powder forming solid solutions or intermetallic phases is deposited upon an open-porous body made of nickel or iron by means of an organic binder. Subsequent thereto, the open-porous body provided with the coating is brought into the desired shape with observing minimum bending radii, and subsequently the organic components are removed in a first thermal treatment step. By means of a second thermal treatment the open-porous molded body is sintered, and the solid solution or the intermetallic phase are formed.
摘要:
A method for joining a metal foam to a metal part comprises the following steps:
providing a metal part (14); providing an open cell metal foam (10); applying the metal foam (10) onto a surface (12) of the metal part (14); depositing e.g. by thermal decomposition of nickel carbonyl a metal onto the metal foam (10) and the surface (12) of the metal part (14) through the metal foam (10) in a quantity sufficient to join the metal foam to the metal part.
摘要:
Durch Einbringung eines gasförmigen, flüssigen oder pulverförmigen Mediums in eine geschäumte Struktur können deren physikalische Eigenschaften verändert werden. Dadurch ist es beispielsweise möglich, die Steifigkeit einer als Energieabsorptionselement in einem Fahrzeug wirkenden Schaumstruktur entsprechend den Kollisionsbedingungen zu verändern. Auch können die thermischen oder akustischen Eigenschaften von geschäumten Flächenelementen durch das erfindungsgemäße Verfahren beeinflußt werden.