A method of forming a hybrid metal composite structure including at least one metal ply. The method includes forming at least one metal ply, forming the at least one metal ply comprising forming at least one perforation in the at least one metal ply, abrasively blasting at least one surface of the at least one metal ply to coarsen the at least one surface of the metal ply, and exposing the at least one metal ply to at least one of an acid or a base. The method further includes disposing at least one fiber composite material structure adjacent the at least one metal ply. Related methods of forming a portion of a rocket case and related hybrid metal composite structures are also disclosed.

A process for applying a color pattern or design to a cork tile includes providing a release film, printing a design layer on the release film, applying a glue layer on the design layer so that the design layer is between the glue layer and the release film, and laminating the design layer and glue layer onto a cork top surface of the cork tile using a heated laminating machine, so that the glue layer and the design layer are released from the release film and form the color pattern or design on the cork top surface.

A thermoelectric material structure includes a substrate, at least one spacing layer, and at least one two-dimensional (2D) material layer. The substrate has a surface. The 2D material layer and the spacing layer are overlapped and disposed on the surface of the substrate. The thermal conductivity of the 2D material layer along the direction perpendicular to the surface of the substrate is less than 10 W/mK.

A furnace system includes a heating chamber, a retort assembly, and a waveguide. The heating chamber includes a shell encompassing an insulation layer and a working volume, where the working volume is configured to receive at least one part for heat treatment. The retort assembly is supported within the insulation layer and includes an inner retort surface facing the working volume. The inner retort surface is formed of at least one carbon compound reflective of microwave radiation, and the retort assembly defines a retort aperture. The waveguide is configured to direct microwave radiation from a microwave source to the retort aperture.

A thermally expandable sheet includes: a first thermally expansive layer that is formed on one side of a base and contains a first thermally expandable material; and a second thermally expansive layer that is formed on the first thermally expansive layer and contains a second thermally expandable material, wherein the second thermally expandable material further contains white pigment.

A piston for a heavy duty diesel engine including a composite layer forming at least a portion of a combustion surface is provided. The composite layer has a thickness greater than 500 microns and includes a mixture of components typically used to form brake pads, such as a thermoset resin, an insulating component, strengthening fibers, and an impact toughening additive. According to one example, the thermoset resin is a phenolic resin, the insulating component is a ceramic, the strengthening fibers are graphite, and the impact toughening additive is an aramid pulp of fibrillated chopped synthetic fibers. The composite layer also has a thermal conductivity of 0.8 to 5 W/m.Math.K. The body portion of the piston can include an undercut scroll thread to improve mechanical locking of the composite layer. The piston can also include a ceramic insert between the body portion and the composite layer.

An electromagnetic-wave-absorbing composite sheet comprising an electromagnetic-wave-absorbing magnetic film, and an electromagnetic-wave-shielding film laminated on the electromagnetic-wave-absorbing magnetic film; the electromagnetic-wave-absorbing magnetic film comprising magnetic powder uniformly dispersed in a binder resin; the electromagnetic-wave-shielding film being a conductive metal foil, a plastic film having a thin conductive metal film or coating, or a carbon sheet; and an area ratio of the electromagnetic-wave-shielding film to the electromagnetic-wave-absorbing magnetic film being 10-80%.

A heat-dissipating film comprising a heat-conductive layer obtained by burning a mixture layer of flaky carbon and a binder resin to carbonize or burn off the binder resin, and plastic films covering the heat-conductive layer, the heat-conductive layer having a density of 1.9 g/cm.sup.3 or more and thermal conductivity of 450 W/mK or more, is produced by (1) sandwiching a mixture layer of flaky carbon and a binder resin with a pair of first plastic films to form a laminated film; (2) heat-pressing the laminated film to densify the mixture layer; (3) burning the mixture layer to carbonize the binder resin in the mixture layer; (4) pressing the resultant burnt layer to form the heat-conductive layer; and (5) sealing the heat-conductive layer with second plastic films.

A sound insulating material, a sound insulating plate, and a partition structure of a train carriage are provided. The sound insulating material comprises the following components in weight ratio: 2-8 parts of tricalcium silicate; 4-10 parts of calcium hydroxide; 10-30 parts of aluminosilicate; 4-10 parts of alumina; 5-15 parts of iron oxide; 10-30 parts of a binder; and 5-10 parts of a curing agent, wherein the binder is at least two of lithium silicate, sodium silicate and calcium silicate; the curing agent is at least one of lithium oxide, magnesium oxide and silica; and the mixture of the aluminosilicate, alumina and iron oxide expands at 1000 C.-1350 C. to form particles. The sound insulating plate made of this material is lightweight and has a sound insulation capacity of 35-42 dB.

A multilayer composite membrane consists essentially of a porous support layer, an inorganic porous layer, a polymer porous layer, and a separation layer. The inorganic porous layer consists of inorganic particles and is disposed on the porous support layer. The polymer porous layer is disposed on the inorganic porous layer. The separation layer is disposed on the polymer porous layer.