Abstract:
Examples of forming metal composites are described herein. In an example, a metal sheet is formed into a predetermined shape using superplastic thermal forming technique. Further, a carbon fiber-reinforced polymer sheet is shaped into the predetermined shape by thermal forming. The metal sheet and the carbon fiber-reinforced polymer sheet are coupled by applying an adhesive between the metal sheet and the carbon fiber-reinforced polymer sheet, to form a metal composite.
Abstract:
Es wird ein Vielschichtkondensator (1) aufweisend dielektrische Schichten (2) und dazwischen angeordnete Elektrodenschichten (3, 4, 5) angegeben, wobei der Vielschichtkondensator (1) mehrere miteinander verbundene Segmente (11, 12) aufweist und wobei zwischen den Segmenten (11, 12) wenigstens ein Entlastungsbereich (18, 19, 20) vorgesehen ist. Weiterhin wird ein Verfahren zur Herstellung eines derartigen Vielschichtkondensators (1) angegeben.
Abstract:
L'invention concerne un procédé de fixation d'un renfort métallique structurel (10) sur une partie (2) d'une aube (1) de turbine à gaz en matériau composite, comprenant le positionnement du renfort métallique structurel dans un moule d'injection (20), le positionnement dans le moule d'injection de la partie de l'aube sur laquelle doit être fixée le renfort métallique structurel, la partie de l'aube et le renfort métallique structurel étant positionnés l'un par rapport à l'autre dans leur positionnement final et en laissant un interstice (26) entre eux; l'injection de colle dans l'interstice entre le renfort métallique structurel et la partie de l'aube sur laquelle doit être fixée le renfort métallique structurel, et la polymérisation de la colle. L'invention concerne également un moule d'injection pour la mise en œuvre d'un tel procédé.
Abstract:
A material for use in covering objects for microwave heating comprises a substrate (1) substantially transparent to microwave radiation bearing an array of low emissivity metal patch elements (2) defining a frequency selective surface adapted to pass microwave radiation and reflect thermal infrared radiation. The patch elements (2), typically of aluminium, preferably have a characteristic dimension no greater than about 500µm and a spacing no greater than about 100µm, while the emissivity of the combined substrate and frequency selective surface is preferably no greater than about 0.4. The material is useful as a packaging for chilled or frozen microwavable foodstuffs, where its low emissivity assists in thermal insulation during storage or transportation and capturing of heat within the package during microwave cooking, where it can be safely used despite the presence of metal in the structure due to its configuration as a frequency selective surface. Potential uses also include bandages or patches worn on the body during microwave heat treatment of sports injuries and the like and various other microwave heating applications.
Abstract:
A method of transporting precision equipment materials without absorption of thermal energy through the heat sensitive material or device such as flat panel displays. The transfer member has a carbon fiber reinforced composite material body with a layer of metal film on the top and bottom surfaces of the transfer member that provides a reflective surface. Flat panel displays, for example, release radiant thermal energy that is absorbed by the carbon fiber reinforced composite which is detrimental to the flat panel display. The reflective surface created by the metal film prevents the energy absorption by the carbon fiber reinforced composite. A glass fiber and epoxy layer on the metal film surface protects the metal film.
Abstract:
The invention is a method of bonding a ceramic part (6) to a metal part (4) by heating a component assembly (2) comprised of the metal part (4), the ceramic part (6), and a very thin essentially pure interlayer material (8) of a compatible interlayer material (8) placed between the two parts and heated at a temperature that is greater than the temperature of the eutectic formed between the metal part (4) and the metal interlayer material, but that is less than the melting point of either the interlayer material, the ceramic part (6) or the metal part (4). The component assembly (2) is held in intimate contact at temperature in a non-reactive atmosphere for a sufficient time to develop a homogeneous and strong bond between the ceramic part (6) and the metal part (4). The bonded component assembly (2) is optionally treated with acid to remove any residual free nickel and nickel salts, to assure a biocompatible component assembly (2) for implantation in living tissue.
Abstract:
Metal foams are impregnated with a phthalonitrile prepolymer. The metal foam/polymer composite formed upon curing has excellent acoustic damping, structural properties, oxidative stability, and flame resistance. Foams of various metals, such as aluminum, titanium, nickel, copper, iron, zinc, lead, silver, gold, platinum, tantalum, and alloys based on these metals may be used.
Abstract:
A beta titanium-fiber reinforced composite laminate (10) comprising at least one layer of beta titanium alloy (16) and at least one layer of fiber reinforced composite (12), wherein the layer of beta titanium alloy (16) has a yield strength to modulus of elasticity that is substantially similar to the strength to modulus of elasticity ratio of the first layer of fiber reinforced composite (12). Also, a method of preparing a beta titanium-fiber reinforced composite laminate (10) comprising the steps of, first, providing a beta titanium alloy having a first yield strength to modulus of elasticity ratio; then, heating the beta titanium alloy at a first temperature for a first time to produce a beta titanium alloy (16) having a second yield strength to modulus of elasticity ratio; and then, adhering the fiber reinforced composite (12) having a strength to modulus of elasticity ratio to the beta titanium alloy (16) to produce a beta titanium-fiber reinforced composite laminate (10); wherein the first temperature and the first time are such that the second yield strength to modulus of elasticity of the beta titanium alloy (16) is substantially similar to the strength to modulus of elasticity of the fiber reinforced composite (12).