In an example, a composite thermal interface object includes a first layer including a first thermal interface material that has first compliance characteristics. The first layer includes first graphite fibers, and the first graphite fibers are aligned in a direction that is substantially orthogonal to a surface of the first layer. The composite thermal interface object further includes a second layer including a second thermal interface material that has second compliance characteristics that are different from the first compliance characteristics.

A magnetic sheet comprises, by vol. %, FeSiAl alloy flat powder: 36% or more. The FeSiAl alloy flat powder comprises, by wt %, 9.3%Si9.7%, 5.7%Al6.1%, and remaining Fe. The FeSiAl alloy flat powder has: an aspect ratio in a range of 20 or more and 50 or less; a 50% particle size D.sub.50 in a range of 50 m or more and 100 m or less; and a coercivity Hc of 60 A/m or less. The magnetic sheet has a temperature characteristic of permeability measured at 1 MHz exhibiting a maximum value in a range of 0 C. or more and 40 C. or less.

High quality flexible optical mirrors (in a single or multi-layer implementation) are fabricated from polymer matrix composite material(s) by replication, cast-spinning, and 3-D printing processes. These mirrors are suited as controllable mirrors for different applications including telescope mirrors. The mirrors made from smart materials (carbon nanotubes in epoxy) attain controlled properties that may be changed by application of external stimuli, including stress, temperature, moisture, electric and magnetic fields, as well as electromagnetic fields. When formed with non-ferrous metal particles embedded in epoxy, the mirrors are suited for cryogenic operations. The mirrors formed with the ferromagnetic/epoxy material can be deformed and steered by magnetic or electromagnetic fields.

A rubber sheet allowing unexpectedly improved fatigue strength is made of a rubber composition based on at least an elastomer matrix and a crumb rubber comprising crumb rubber particles substantially perpendicularly oriented to a longitudinal direction of the rubber sheet.

A three-dimensional (3D) printer system includes a nozzle that can passively align fibers being deposited with resin while creating fiber-reinforced composite components. The nozzle may include a nozzle body with main bore that directs material axially through a nozzle body, toward an alignment duct that provides the nozzle's outlet. The alignment duct may provide a passage in which the fibers are urged into a different orientation aligns the fibers generally parallel to each other in a different direction than the axial flow direction through the nozzle. The alignment duct's passage may be radially asymmetric, such as a tapering rectangular slot(s), which may provide guide surfaces to impart the reorientation of the flowing fibers.

The present invention intends to estimate the orientation of a resin while suppressing anisotropy. The resin composition for injection molding according to the present invention including a first thermoplastic resin and a filler including a non-fibrous first inorganic particle, further including at least one of an aggregate of second inorganic particles and a resin composition of a second thermoplastic resin. A ratio of a longest first length to a shortest second length among lengths of the aggregate and the resin composition in three directions orthogonal to each other is larger than or equal to 2 and smaller than or equal to 20, and the first length is larger than or equal to 25 m and smaller than or equal to 100 m. The aggregate or the resin composition does not include the first inorganic particles having a particle diameter of larger than or equal to 25 m.

Disclosed are methods and apparatus for selectively sintering particulate material, the method comprising: providing a layer (6) of particulate material; providing an amount of a radiation absorbent material over a selected surface portion of the layer (6) of particulate material; providing an amount of a material that comprises a plurality of electrically conductive elements (20) over at least part of the selected surface portion of the layer (6) of particulate material; and providing radiation (8) across the selected surface portion of the layer of particulate material so as to sinter a portion of the material of the layer (6) including causing the plurality of electrically conductive elements (20) to become embedded in the sintered portion of material.

The present disclosure relates to a sheet comprising a composite material comprising a polymer and hexagonal boron nitride particles, wherein the hexagonal boron nitride particles comprise platelet-shaped hexagonal boron nitride particles, and wherein the platelet-shaped hexagonal boron nitride particles are oriented in a direction perpendicular to the direction of the plane of the sheet, and wherein the composite material comprises at least 70 percent by weight of the hexagonal boron nitride particles, based on the total weight of the composite material, and wherein the sheet has a through-plane thermal conductivity of more than 12 W/m*K. The present disclosure further relates to processes for producing said sheet.

Additive manufacturing devices and methods enable the production of 3D-printed objects with varying strengths and characteristics based on the controlled orientation of filler materials. Magnetic fields applied during stereolithography (SLA) printing orient fillers within resin mixtures. This method, when compared to traditional 3D printing techniques, provides a more dynamic and adaptable approach to material design.