Abstract: Disclosed is a method for controlling a microstructure of an inorganic material includes providing a structure that has a first region of an inorganic material having a first microstructure and a second region that is thermally responsive to electromagnetic radiation, the second region being adjacent the first region, and indirectly heating the first region by thermally activating the second region, using electromagnetic radiation, to generate heat. The generated heat converts the first microstructure of the inorganic material to a second, different microstructure. The method can be applied to control a microstructure of an inorganic coating on an inorganic fiber.

Abstract: Disclosed is a method for providing a crystalline ceramic material. In an example, the method includes providing a silicon-containing preceramic polymer material that can be thermally converted to one or more crystalline polymorphs. The silicon-containing preceramic polymer material includes dispersed therein an effective amount of dopant particles. The silicon-containing preceramic polymer material is then thermally converted to the silicon-containing ceramic material. The effective amount of dopant particles enhance the formation of at least one of the one or more crystalline polymorphs, relative to the silicon-containing preceramic polymer without the dopant particles, with respect to at least one of formation of a selected polymorph of the one or more crystalline polymorphs formed, an amount formed of a selected polymorph of the one or more crystalline polymorphs formed, and a temperature of formation of the one or more crystalline polymorphs.

Abstract: A method of making a component comprises producing a layer of sheet material including an aperture over a movable support. An insulating material is deposited in a first portion of the aperture to form an insulating coating with one or more pockets. A conductive material is deposited in the one or more pockets. Heat and pressure are applied to the layer and the movable support is lowered by a thickness of the layer. The steps are repeated to form a laminated stack defining the component. In some embodiments, the laminated stack of sheet materials forms an induction machine.

Abstract: A method of fabricating a ceramic article includes serially depositing first, second and third different materials within a porous structure using, respectively, first, second and third different processing techniques, to form a ceramic-containing article. The first, second and third materials differ by at least one of composition and microstructure. The first, second and third different processing techniques differ by at least one of modes of delivery of precursor materials into the porous structure and formation mechanisms of the first, second and third different materials from the precursor materials. The deposition of the first material is controlled such that there are first residual voids in the porous structure in which the second material is deposited. The deposition of a second material is controlled such that there are second residual voids in the porous structure in which the third material is deposited.

Abstract: A method of producing a ceramic material includes heating solid silicon monoxide to provide gaseous silicon monoxide, and exposing a structure having a free-carbon-containing material to the gaseous silicon monoxide to convert free carbon of the free-carbon-containing material to silicon carbide. Also disclosed is an intermediate article that includes a solid structure having free carbon and a solid, in-situ source of silicon monoxide gas. Also disclosed is a composition that includes a polymeric carrier phase and particulate of solid silicon monoxide dispersed in the polymeric carrier phase.

Abstract: A composite component includes a fiber array, a plurality of platelets bridging between fiber filaments of the fiber array and rigidizing the fiber array, and a resin-based phase disposed within voids of the fiber array. A method of making a composite component is also disclosed.

Abstract: A method of preparing a composite preform includes applying a tacky preceramic-polymer-based adhesive on a first fiber array arranging a second fiber array on the first fiber array, the adhesive holding the first and second fiber arrays together. A composite component is also disclosed.

Abstract: An article includes a substrate and a coating on the substrate. The coating includes a compound of aluminum, boron and nitrogen in a continuous chemically bonded network having Al—N bonds and B—N bonds. Also disclosed is an article wherein the substrate is a plurality of fibers and the coating is a conformed coating of a compound of aluminum, boron and nitrogen having Al—N bonds and B—N bonds. The fibers are disposed in a matrix. Also disclosed is a method of protecting an article from environmental conditions. The method includes protecting a substrate that is susceptible to environmental chemical degradation using a coating that includes a compound of aluminum, boron and nitrogen having Al—N bonds and B—N bonds.

Abstract: A method of tailoring an amount of graphene in an electrically conductive structure, includes arranging a substrate material in a plurality of strands and arranging at least one graphene layer coated circumferentially on one or more of the strands of the plurality of strands, the graphene layer being a single atom-thick layer of carbon atoms arranged in a hexagonal pattern, the substrate material and the at least one graphene layer having an axial direction. A first cross-section taken along the axial direction of the substrate and the at least one graphene layer includes a plurality of layers of the substrate material and at least one internal layer of the graphene alternatively disposed between the plurality of layers of the substrate material.

Abstract: An instrumented article includes a ceramic-based substrate and at least one conformal electronic device deposited on a surface of the ceramic-based substrate. A compliant layer is located between the ceramic-based substrate and the one or more conformal electronic devices. The compliant layer has a thermal expansion that is intermediate of the thermal expansions of, respectively, the ceramic-based substrate and the one or more conformal electronic devices.

Abstract: The present disclosure relates to systems, methods and resins for additive manufacturing. In one embodiment, a method for additive manufacturing of a ceramic structure includes providing a resin including a preceramic polymer and inorganic ceramic filler particles dispersed in the preceramic polymer. The preceramic polymer is configured to convert to a ceramic phase. The method includes functionalizing inorganic ceramic filler particles with a reactive group and applying an energy source to the resin to create at least one layer of the ceramic phase from the resin.

Abstract: A composition for manufacturing a composite of a non-oxide ceramic matrix and a refractory phase within the non-oxide ceramic matrix includes a preceramic polymer for forming a non-oxide ceramic matrix and a refractory material dispersed within the preceramic polymer.

Abstract: An electrically conductive structure including a substrate material and graphene. A first cross-section taken along an axial direction of the electrically conductive structure includes a plurality of layers of the substrate material and at least one internal layer of the graphene alternatingly disposed between the plurality of layers of the substrate material. A method of tailoring an amount of graphene in an electrically conductive structure is also included.

Abstract: A composite article includes a substrate and a protective coating on at least a portion of the substrate. The protective coating includes reinforcement particles dispersed within an elastomeric matrix that is modified with a silicon-containing modifier selected from polysilsesquioxane, polyhedral oligomeric silicate, polyhedral oligomeric silsesquioxane (POSS), and combinations thereof. The reinforcement particles are selected from carbon, nickel metal, and combinations thereof. The protective coating is multi-layered and includes a distinct first layer and a distinct second layer that is contiguous with the distinct first layer such that each of the distinct first layer and the distinct second layer have an exposed outer surface.

Abstract: A coated article includes a substrate and a superhydrophobic coating on the substrate. The superhydrophobic coating is a composite of a silicone polymer and particles that are inherently hydrophobic or surface-functionalized with a hydrophobic agent.

Abstract: A method of treating a preceramic material includes providing a preceramic polycarbosilane or polycarbosiloxane material that includes a moiety Si—O—M, where Si is silicon, O is oxygen and M is at least one metal that includes at least one transition metal, and thermally converting the preceramic polycarbosilane or polycarbosiloxane that includes the moiety Si—O—M material into a ceramic material.

Abstract: A winding configuration for an electric machine includes a stator core with a plurality of winding slots, a plurality of conductor strands distributed in a winding slot of the plurality of winding slots, and an insulation matrix that surrounds each of the plurality of the conductor strands. The winding slot includes a slot cavity with a cross-section area and the plurality of distributed conductor strands are configured to maximize slot fill factor.

Abstract: An apparatus system and method for an electronic component made with additive manufacturing processes and a foil substrate is provided. The electronic component may include one or more foil substrates and one or more elements. The elements may be produced by an additive manufacturing process. Moreover, the elements may be produced in the same plane or out of plain with one or more foil substrates. The elements may also be various structures, including, for example, connectors, electrical components (e.g., a resistor, a capacitor, a switch, and/or the like), and/or any other suitable electrical elements and/or structures.

Abstract: Components with improved erosion resistance are disclosed. A surface of the component or a substrate of the component is modified by coating the substrate with an elastomer layer. The elastomer layer is then modified by embedding hard particles onto an outer side of the elastomer layer. The hard particles exhibit higher fractured toughness providing enhanced erosion protection. The elastic properties of the elastomer experience little reduction because the surface embedded particles are located only at the outer side or outer surface of the elastomer layer. Therefore, the bond between the inner side of the elastomer layer and the substrate or component surface is not interfered with and the potential for electro-chemical corrosion and poor adhesion are not increased by the presence of the hard particles as the hard particles are located away from the inner face between the elastomer layer and the substrate.

Abstract: In one embodiment, a stator includes a stator core and a winding assembly. The stator core has an axis and a slot extending a radial depth from a slot opening. The winding assembly is disposed in the slot, and includes a plurality of winding strands with cross-sectional shapes that vary as a function of radial location within the slot. In another embodiment, a method of forming a stator winding assembly for a stator slot includes additively manufacturing a plurality of winding strands and an insulating gap matrix that separates the winding strands. The winding strands have cross-sectional shapes through a radial-circumferential plane that varies as a function of radial position within the slot.