The present technology provides an electrical insulating material comprising a plurality of insulating dielectric layers and a thermally conductive layer disposed between adjacent dielectric layers, the thermally conductive layer comprising a thermally conductive filler. Additionally, the present technology also provides a method of manufacturing the electrical insulating material. The present technology also provides an electrically conductive apparatus comprising an electrically conductive material and an electrical insulating material disposed about the conductive material, the electrical insulating material comprising a first dielectric layer, a second dielectric layer overlying the first dielectric layer, and a thermally conductive layer disposed between the first and second dielectric layers, the thermally conductive layer comprising a thermally conductive filler, e.g., born nitride.

A transformer assembly is provided that includes a housing, transformer oil disposed within the housing, a plurality of coils of electrically conductive wire, and aliphatic polyamide insulation material operable to insulate the coils disposed within the oil. The plurality of electrically conductive coils is disposed in the housing and in contact with the transformer oil. The aliphatic polyamide insulation material includes stabilizing compounds and nano-fillers. The stabilizing compounds provide thermal and chemical stability for the insulation material.

An insulated electric conductor having a copper core, a layer of aluminum formed on the copper core, and a second layer of aluminum in the form of high-purity aluminum is disclosed. The copper core may be a solid core or may be formed from a plurality of copper strands. The layer of aluminum formed over the copper core is at least partially anodized to form an aluminum oxide dielectric layer. The layer of high-purity aluminum may be formed by evaporation deposition, sputter deposition, or co-extrusion. Once the layer of high-purity aluminum is formed, it is anodized. More than two layers of aluminum may be formed over the copper core.

A dielectric assembly solid dielectric elements within a liquid or solid matrix material. The dielectric assembly may be manufactured by pressing a dielectric powder to form pressed dielectric elements, sintering the pressed dielectric elements to form the solid dielectric elements, and assembling the solid dielectric elements within the matrix material to form the dielectric assembly. The solid dielectric elements can be specifically oriented (e.g., in one or more tiled layers) or randomly oriented, and the dielectric assemblies can be molded and/or machined into desired 3D geometries. The dielectric assemblies can be relatively large (e.g., >1 mm.sup.3) while having bulk dielectric constants higher than conventional slurries and composites formed of dielectric powder in a liquid or solid matrix.

An embodiment of the present invention includes: an electrical steel sheet substrate; and an insulating coating on one or both surfaces of the electrical steel sheet substrate, wherein the insulating coating includes a silane compound and a metal hydroxide.

An embodiment of the present invention includes: an electrical steel sheet substrate; and an insulating coating on one or both surfaces of the electrical steel sheet substrate, wherein the insulating coating includes a silane compound and a metal hydroxide.

Disclosed herein are embodiments of high Q, temperature stable materials with low dielectric constants. In one aspect, a low loss dielectric material includes one or more transition metal oxides based on the (Zn, Ni, Co)O—Al.sub.2O.sub.3—TiO.sub.2 system comprising an aluminate comprising one of cobalt (Co) or nickel (Ni) crystallized in a spinel structure. The low loss dielectric material additionally comprises one or more of: a titanate comprising the one of Co or Ni crystallized in a spinel structure, an aluminum oxide and a titanium oxide crystallized in a rutile structure.

Disclosed herein are embodiments of high Q, temperature stable materials with low dielectric constants. In one aspect, a low loss dielectric material includes one or more transition metal oxides based on the (Zn, Ni, Co)O—Al.sub.2O.sub.3—TiO.sub.2 system comprising an aluminate comprising one of cobalt (Co) or nickel (Ni) crystallized in a spinel structure. The low loss dielectric material additionally comprises one or more of: a titanate comprising the one of Co or Ni crystallized in a spinel structure, an aluminum oxide and a titanium oxide crystallized in a rutile structure.

A dielectric composition includes one of BaTiO.sub.3, (Ba,Ca) (Ti,Ca)O.sub.3, (Ba,Ca) (Ti,Zr)O.sub.3, Ba(Ti,Zr)O.sub.3 and (Ba,Ca) (Ti,Sn)O.sub.3, as a main component, a first subcomponent including a rare earth element, and a second subcomponent including at least one of a variable valence acceptor element and a fixed valence acceptor element. When a sum of contents of the rare earth element is defined as DT and a sum of contents of the variable valence acceptor element and the fixed valence acceptor element is defined as AT, (DT/AT)/(Ba+Ca) satisfies more than 0.5 and less than 6.0. In addition, a multilayer electronic component including the dielectric composition is provided.

A dielectric composition includes one of BaTiO.sub.3, (Ba,Ca) (Ti,Ca)O.sub.3, (Ba,Ca) (Ti,Zr)O.sub.3, Ba(Ti,Zr)O.sub.3 and (Ba,Ca) (Ti,Sn)O.sub.3, as a main component, a first subcomponent including a rare earth element, and a second subcomponent including at least one of a variable valence acceptor element and a fixed valence acceptor element. When a sum of contents of the rare earth element is defined as DT and a sum of contents of the variable valence acceptor element and the fixed valence acceptor element is defined as AT, (DT/AT)/(Ba+Ca) satisfies more than 0.5 and less than 6.0. In addition, a multilayer electronic component including the dielectric composition is provided.