Patent classifications
B32B2305/076
Metal-coated fabrics for fiber-metal laminates
Disclosed herein are laminates that include a layer containing a metal-coated fabric. The laminate may also include a layer or layers of an organic polymeric matrix composite. In accordance with certain embodiments, the matrix composite includes a thermosetting or thermoplastic resin matrix with parallel-oriented reinforcing fibers embedded therein, interposed between the metal-coated fabric layers.
Ceramic matrix composite articles and methods for forming same
A ceramic matrix composite article includes a melt infiltration ceramic matrix composite substrate comprising a ceramic fiber reinforcement material in a ceramic matrix material having a first free silicon proportion, and a melt infiltration ceramic matrix composite outer layer comprising a ceramic fiber reinforcement material in a ceramic matrix material having a second free silicon proportion disposed on an outer surface of at least a portion of the substrate, or a polymer impregnation and pyrolysis ceramic matrix composite outer layer comprising a ceramic fiber reinforcement material in a ceramic matrix material having a second free silicon proportion disposed on an outer surface of at least a portion of the substrate. The second free silicon proportion is less than the first free silicon proportion.
Composite sandwich panel and associated methods of manufacture
Disclosed herein is a composite sandwich panel that includes a first face portion with fully consolidated comingled first fibers and a first thermoplastic matrix. The composite sandwich panel also includes a second face portion with fully consolidated comingled second fibers and a second thermoplastic matrix. Additionally, the composite sandwich panel includes at least one core portion with partially consolidated comingled third fibers and a third thermoplastic matrix. The at least one core portion is interposed between the first and second face portions. The first thermoplastic matrix is melded with the third thermoplastic matrix and the second thermoplastic matrix is melded with the third thermoplastic. A density of the fibers across a thickness of the composite panel is non-uniform.
METHOD OF MANUFACTURING CLOSED CROSS-SECTION STRUCTURAL MEMBER
A method of manufacturing a closed cross-section structural member is disclosed. The closed cross-section structural member includes: a first panel and a second panel joined to each other to form a closed cross-section; and a fiber reinforced plastic (FRP) material bonded to the first panel. The method includes: attaching the FRP material to the first panel with an adhesive; curing the FRP material and the adhesive by heating the FRP material and the adhesive together with the first panel; and joining the second panel to the first panel in which the FRP material and the adhesive are cured.
Block copolymer compositions, prepregs, and laminates made therefrom
A resin composition that allows production of laminated sheets excellent in heat resistance and processability is disclosed. The resin composition comprises: a) a block copolymer, where the block copolymer comprises at least one polymer block comprising polymerized acyclic conjugated diene units, such as butadiene units, and at least one polymer block containing units like a conjugated cyclic diene such as 1,3-cyclohexadiene or monomer units characterized by unit Tg above 100° C., b) a curing initiator, and c) optionally diene-based polymer selected from a polybutadiene polymer and the copolymer of butadiene with styrene or other styrenic monomers, c) optional additives comprising but not limited to a multi-functional co-curable additive, a diene based rubber, a halogenated or non halogenated flame retardant, an inorganic or organic filler or fiber, an antioxidant, a adhesion promotor, a film forming.
Surfacing and/or joining method
A method for surfacing a polymeric composite article and/or for joining (for example, by bonding or by co-curing) the article and an adherend (for example, a second polymeric composite article) comprises (a) providing a cured or curable polymeric composite article; (b) providing a curable composition comprising (1) at least one thermosetting resin, and (2) at least one preformed, substantially non-functional, particulate modifier comprising at least one elastomer; and (c) directly or indirectly applying the composition to at least a portion of at least one surface of the article.
Method of quantifying surface resin
An example of a method of manufacturing a component from a composite prepreg includes collecting a specimen from the composite prepreg and quantifying an amount of surface resin of the specimen by submerging the specimen in a container containing a fluid to determine a fluid pickup percentage. Responsive to a determination that the fluid pickup percentage exceeds a predefined threshold value, forming a component from the composite prepreg.
Composite Foam Article
A composite foam article is disclosed herein. The composite foam article comprises a polyurethane foam core presenting a first surface and a second surface facing opposite the first surface. A first skin is disposed on the first surface and a second skin is disposed on the second surface. The first and second skins comprise a plurality of fibers and a polymeric binder. The composite foam article also comprises at least one supplemental layer comprising an ethylene and acrylic acid copolymer dispersed in and/or disposed between any of said aforementioned skins and core.
TORCH AND PLASMA HEATING METHOD FOR PLACING COMPOSITE ROVINGS
A system to place one or more rovings made from composite material on a substrate. The system includes at least a roving-laying head configured to lay at least one roving, an electricity generator and at least one plasma torch. The plasma torch mounted on the roving-laying head and powered by the electricity generator. The plasma torch being further supplied with at least one plasma-forming fluid to generate at least one plasma jet suitable for heating the one or more rovings to be laid on the substrate.
MATERIAL SYSTEMS AND METHODS OF MANUFACTURING MATERIAL SYSTEMS
A material system may include: an aluminum layer; a glass composite layer adjacent to the first aluminum layer; and a carbon composite layer adjacent to the first glass composite layer, and opposite to the first aluminum layer. A method of manufacturing a material system may include: stacking an aluminum layer, glass composite layer that may include thermoplastic prepreg plies, and carbon composite layer so that the aluminum layer is adjacent to the glass composite layer, and the glass composite layer is adjacent to the carbon composite layer; and consolidating the thermoplastic prepreg plies to soften the aluminum layer. A method of manufacturing a material system may include: stacking an aluminum layer, glass composite layer that comprises thermoplastic resin, and carbon composite layer so that the glass composite layer is between the aluminum and carbon composite layers; and adjusting temperature and pressure to consolidate the stack.