Patent classifications
C22C47/066
METHOD FOR MANUFACTURING A PART OUT OF A METAL MATRIX COMPOSITE MATERIAL, AND RELATED DEVICE
The invention relates to a method (S) for manufacturing a part (1) out of a metal matrix composite material, including the following steps: opening (S1) device (10) that includes a supporting portion (14) and a molding portion (14); placing (S2) a fibrous reinforcement into the device (10); sealably closing (S3) the device (10) by providing a space between the fibrous reinforcement (2) and the device portions; feeding (S4) the molten metal matrix (3) into the device (10) such as to fill the space between the fibrous reinforcement (2) and the device portions (13, 14); and applying (S5) a force onto the equipment (10) such as to impregnate the fibrous reinforcement (2) with the metal matrix (3).
Airfoil with flange formed of wishbone-shaped fiber layer structure
A vane arc segment includes an airfoil fairing that has a fairing platform and an airfoil section that extends there from. The fairing platform defines a gaspath side and a non-gaspath side and includes a flange that projects from the non-gaspath side. The airfoil fairing is formed of a fiber-reinforced composite that includes a wishbone-shaped fiber layer structure that has first and second arms that converge and merge into a single leg. The first and second arms are formed of fiber plies comprised of a network of fiber tows. The single leg comprises fiber tows from each of the fiber plies of the first and second arms. The fiber tows of the first arm are interwoven in the single leg with the fiber tows of the second arm. The first arm, the second arm, or the single leg forms at least a portion of the flange.
HEAT-NOT-BURN DEVICE AND METHOD
A susceptor for use in a heat-not-burn device, and a method of manufacturing thereof, using metal pieces incorporated together into a single unitary piece using a variety of techniques, such as compacting, heat and pressure, sintering, weaving, extruding, and the like, such that the susceptor is susceptible to degradation after use.
Method for processing and manufacturing a metal structural material by a coiling, sintering and plastic working of a metal screen mesh
Provided is a method for processing and manufacturing a metal structural material by knitting metal wires into metal screen mesh strips, tightly coiling the metal screen mesh strips to form a coiled blank body which is coated layer-by-layer and in which an outer-layer material tightly covers an inner-layer material; sintering the coiled blank body; reducing gaps within the coiled blank body material by plastic processing to reach a porosity that fulfills requirements, and manufacturing mechanical structural parts therefrom.
Sacrificial 3-dimensional weaving method and ceramic matrix composites formed therefrom
A ceramic matrix composite (CMC) is formed using a three-dimensional (3-D) woven preform by removing the set of sacrificial fibers from the 3-D woven preform and allowing a metal or metal alloy infiltrate the 3-D woven preform. The 3-D woven preform is formed by a method that includes providing a woven layer comprising a first set of ceramic fibers oriented in a first (x) direction woven with a second set of ceramic fibers oriented in a second (y) direction; stacking a plurality of woven layers on top of each other, said woven layers providing a two-dimensional (2-D) preform; weaving a set of sacrificial fibers in a third (z) direction with the 2-D preform, said weaving providing the 3-D woven preform; and shaping the 3-D woven preform into a predetermined shape.
Method for manufacturing a part out of a metal matrix composite material, and related device
A method (S) for manufacturing a part (1) out of a metal matrix composite material, including the following steps: opening (S1) a device (10) that includes a supporting portion (14) and a molding portion (14); placing (S2) a fibrous reinforcement into the device (10); sealably closing (S3) the device (10) by providing a space between the fibrous reinforcement (2) and the device portions; feeding (S4) the molten metal matrix (3) into the device (10) such as to fill the space between the fibrous reinforcement (2) and the device portions (13, 14); and applying (S5) a force onto the equipment (10) such as to impregnate the fibrous reinforcement (2) with the metal matrix (3).
Method of fabricating an impregnated fiber assembly
A method of fabricating an impregnated fiber assembly, the method including introducing a first suspension including a first powder of solid particles into an inside volume defined by an inside face of a first fiber texture of hollow shape placed in a mold, an outer face of the first fiber texture being present facing a wall of the mold; using a centrifugal force to impregnate the first fiber texture with the first suspension by rotating the mold; after impregnating the first texture, positioning a second fiber texture on the inside face of the first fiber texture to obtain a fiber assembly; introducing a second suspension including a second powder of solid particles into the inside volume after putting the second fiber texture into position; and using a centrifugal force to impregnate the second fiber texture with the second suspension by rotating the mold to obtain an impregnated fiber assembly.
CHEMICALLY BONDED AMORPHOUS INTERFACE BETWEEN PHASES IN CARBON FIBER AND STEEL COMPOSITE
Carbon fiber reinforced steel matrix composites have carbon fiber impregnated in the steel matrix and chemically bonded to the steel. Chemical bonding is shown by the presence of a unique amorphous carbon layer at the carbon fiber/steel interface, and by canting of steel crystal edges adjacent to the interface. Methods for forming carbon fiber reinforce steel composites include sintering steel nanoparticles around a reinforcing carbon fiber structure, thereby chemically bonding a sintered steel matrix to the carbon fiber. This unique bonding likely contributes to enhanced strength of the composite, in comparison to metal matrix composites formed by other methods.
Process for making composite product by plating alloy film on carbon fiber core
A process for making a composite product comprises the steps of: A. Circumferentially plating a carbon fiber core with an alloy film including a film of high entropy alloy and liquid metal alloy or a film of metallic glass to form a film-clad carbon fiber thread; B. Weaving a plurality of said film-clad carbon fiber threads to form an interlaced film-clad carbon fiber sheet; and C. Vibrationally thermally pressing a plurality of said interlaced film-clad carbon fiber sheets as superimposed with one another to form a composite product.
Apparatus and method for directional alignment of nanofibers in a porous medium
A method and apparatus for uniformly and directionally aligning and stretching nanofibers inside a porous medium is described. The nanofibers may include nanotubes, nanowires, long-chain polymer molecules or likewise. Porous medium may include a porous layer, fabric, or composite prepreg or likewise. According to one embodiment, an apparatus for directional alignment of nanofiber in a porous medium includes a fluid matrix with nanofibers. A porous medium is provided as well as a device for forcing the fluid matrix radially through the porous medium.