Abstract:
A housing used for electronic devices includes a structural frame element formed of a metal matrix composite (MMC) for providing improved stiffness over other materials currency in use. The MMC is a metal matrix (formed of a material such as aluminum), with a reinforcing material (such as a glass fiber or ceramic) dispersed within the metal matrix. The composition of the reinforcing material, as well as the ratio of reinforcing material to metal, define the stiffness (resistance to bending) and/or strength (resistance to breaking) achieved, and various compositions may be used for different housings, depending on the use of ihe electronic device. The element may be configured as a structural frame member, or may be embedded within another material forming the stnictural frame element. In another embodiment, the MMC may be used to form various components of the complete housing, including the enclosure itself.
Abstract:
L'invention concerne un insert de renfort composite comportant : - un toron formé par une fibre centrale (1) en matériau céramique entourée par des brins (2) en alliage métallique enroulés en hélice autour de la fibre centrale (1), - une couche de renfort (3) métallique recouvrant le toron.
Abstract:
A method of manufacturing a metal-carbon nanocomposite material in which aluminum is used as the matrix is disclosed. The manufacturing method comprises mixing a Si-coated carbon nanomaterial (30) and a powdered Mg material (33), heating the mixture to a melting point of the Mg material or higher, and thereafter cooling the mixture to obtain an Mg-carbon nanomaterial (34). A metal-carbon nanomaterial in which Al is used as the matrix is provided by cooling the Mg-carbon nanomaterial and molten Al (40) in a mixed state.
Abstract:
There are provided multilayer composite materials comprising a first layer comprising aluminum, titanium, brass, copper, steel, or mixtures thereof; a foamable core layer comprising aluminum and a foaming agent; and a second layer comprising aluminum, titanium, brass, copper, steel, or mixtures thereof. The first and second layers can be the same or different. There is also provided a process for preparing such composite materials.
Abstract:
Metal matrix composite wires (59) that include at least one tow comprising a plurality of substantially continuous, longitudinally positioned fibers (51) in a metal matrix. The fibers are selected from the group of ceramic fibers carbon fibers, and mixtures thereof. The wires have certain specified characteristics such as roundness values, roundness uniformity values, and/or diameter uniformity values.
Abstract:
A metal matrix composite is produced by forming a rapidly solidified aluminum base alloy into powder. The powder is plasma sprayed onto at least one substrate having thereon a fiber reinforcing material to form a plurality of preforms. Each of the preforms has a layer of the alloy deposited thereon, and the fiber reinforcing material is present in an amount ranging from about 0.1 to 75 percent by volume thereof. The preforms are bonded together to form an engineering shape.