485results about "Metallic oxides" patented technology

The present invention relates to a glass frit and a sealing method for an electric element using the same, and more particularly, to a glass frit which provides a good sealing effect to moisture and gas and is processable at low temperatures, and a sealing method for an electric element using the same.

There is disclosed a multilayer insulated wire which comprises a conductor and solderable extrusion-insulating layers made up of two or more layers for covering the conductor, wherein at least one insulating layer is formed by a mixture comprising 100 parts by weight of a resin (A), of at least one selected from the group consisting of polyetherimide resins and polyethersulfone resins, 10 parts by weight or more of a resin (B), of at least one selected from the group consisting of polycarbonate resins, polyarylate resins, polyester resins, and polyamide resin, and 15 to 200 parts by weight of an inorganic filler (C). There is also disclosed a transformer which utilizes the multilayer insulted wire. The multilayer insulated wire is excellent in heat resistance, solderability, high-frequency characteristic, and coilability, and it is favorably suitable for industrial production. Further, the transformer utilizing the multilayer insulated wire is excellent in electrical properties and high in reliability, since when used at high frequencies, electric properties are not lowered and influence by the generation of heat can be prevented.

To provide a liquid crystal display device suitable for a thin film transistor which uses an oxide semiconductor. In a liquid crystal display device which includes a thin film transistor including an oxide semiconductor layer, a film having a function of attenuating the intensity of transmitting visible light is used as an interlayer film which covers at least the oxide semiconductor layer. As the film having a function of attenuating the intensity of transmitting visible light, a coloring layer can be used and a light-transmitting chromatic color resin layer is preferably used. An interlayer film which includes a light-transmitting chromatic color resin layer and a light-blocking layer may be formed in order that the light-blocking layer is used as a film having a function of attenuating the intensity of transmitting visible light.

The present invention facilitates the thermal conductivity of fabrics by surface coating of the fabrics with high thermal conductivity materials 6. The fabrics may be surface coated when they are individual fibers or strands 4, bundles of strands, formed fabric or combinations therefore. A particular type of fibrous matrix used with the present invention is glass. Some fabrics may be a combination of more than one type of material, or may have different materials in alternating layers. HTC coatings of the present invention include diamond like coatings (DLC) and metal oxides, nitrides, carbides and mixed stoichiometric and non-stoichiometric combinations that can be applied to the host matrix.

A transparent dielectric composition comprising tin, oxygen and one of aluminum or magnesium with preferably higher than 15% by weight of aluminum or magnesium offers improved thermal stability over tin oxide with respect to appearance and optical properties under high temperature processes. For example, upon a heat treatment at temperatures higher than 500 C, changes in color and index of refraction of the present transparent dielectric composition are noticeably less than those of tin oxide films of comparable thickness. The transparent dielectric composition can be used in high transmittance, low emissivity coated panels, providing thermal stability so that there are no significant changes in the coating optical and structural properties, such as visible transmission, IR reflectance, microscopic morphological properties, color appearance, and haze characteristics, of the as-coated and heated treated products.

A fire resistant polymeric composition which forms a target mineral on firing of the polymeric composition including 20-60 wt % of an organic polymer; 2-30 wt % of a magnesium compound that oxidises to form MgO; and 5 to 30 wt % silica. The composition preferably includes an alkaline earth metal borosilicate compound, the alkaline earth metal borosilicate compound forming a ceramic composition at an elevated temperature.

Disclosed herein is an article comprising an electrical component and an electrically insulating layer disposed upon the electrical component, wherein the electrically insulating layer comprises a thermosetting polymer and a nanosized filler, wherein the nanosized filler comprises metal oxide and diamond nanoparticles that have an average largest dimension of less than or equal to about 200 nanometers.

The invention relates to a double-shielded mineral-insulated cable which is mainly applied to the fields of high-frequency signal transmission in occasions with high ambient temperature and high radiation, such as the communication fields of metallurgy, medical treatment, aerospace, military and the like. The double-shielded mineral-insulated cable comprises an inner conductor, an insulating medium, an outer conductor, an insulating medium and a protective sleeve in sequence from inside to outside, and is characterized in that the insulating medium is magnesium oxide, aluminum oxide or silicondioxide. Compared with the existing double-shielded cable, the double-shielded mineral-insulated cable has the advantages of longer service life and wider use range; in addition, the double-shieldedmineral-insulated cable has excellent performance, has little interference to transmitted signals and can be used for the communication fields of metallurgy, medical treatment, aerospace, military andthe like.

The invention discloses a copper wire with an insulating layer and a manufacture method thereof. The copper wire comprises a copper core, a pure aluminum layer and an aluminum oxide layer, wherein the pure aluminum layer is compounded to the outer surface of the copper core through a metal composite technology, and the aluminum oxide layer which is prepared through hard anode oxidation treatment is arranged on the outer surface of the pure aluminum layer. In the method, the pure aluminum layer is compounded to the outer surface of the copper core through an extrusion-drawing method metal composite technology and is an auxiliary layer added in order to prepare the aluminum oxide layer, and the hard anode oxidation treatment is carried out on the outer surface of the pure aluminum layer so as to form the aluminum oxide layer. Because the copper wire manufactured by using the method is adopted, the aluminum oxide layer is arranged on the outer surface of the copper wire; the copper wire belongs to ceramic materials per se and has the advantages of high temperature resistance and insulation, therefore, when used at the temperature of below 400 DEG C, the copper wire can also keep favorable insulating performance, is safe to use and has the temperature exceeding a copper wire canned by conventional plastics by more than one time.

A dielectric ceramic composition comprises as a main component, Cu oxide, Si oxide and one selected from the group consisting of Zn oxide alone and a combination of Mg oxide and Zn oxide, as a subcomponent, a glass component including B oxide and at least one selected from the group consisting of Si oxide, Ba oxide, Ca oxide, Sr oxide, Li oxide and Zn oxide, and having a glass softening point is 750° C. or less, wherein a content of said glass component is 1.5 to 15 wt % with respect to 100 wt % of said main component.

According to the present invention, a dielectric ceramic composition can be provided which is available to be sintered at low temperature (for example, 950° C. or lower) while comparatively decreasing contents of a glass component, which shows good properties (specific permittivity, loss Q value and insulation resistance), and which is available to perform cofiring different materials.

A dielectric composite material containing a toughened benzocyclobutene resin and at least about 50% by weight of an inorganic filler. Also electronic packages having at least one conductive layer and at least one layer of the dielectric composite material. The dielectric composite material can have a dielectric constant less than about 3.5, and a dielectric loss of less than about 0.004.

A high dielectric polymer composite having a high dielectric constant is disclosed herein. The high dielectric polymer composite includes a conductive material doped with oxidizable metal nanoparticles or metal oxide nanoparticles to decrease dielectric loss, and a surfactant having a head portion containing an acidic functional group to form a passivation layer that surrounds the conductive material, resulting in increased dielectric constant.

A production method of a dielectric ceramic composition comprising a main component including a compound having a perovskite-type crystal structure expressed by a composition formula (Ba_1-xCa_x) (Ti_1-yZr_y)O₃ (note that 0≦x≦0.2, 0≦y≦0.2), and a fourth subcomponent including an oxide of R (note that R is at least one selected from Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu); comprising steps of obtaining a post-reaction material by bringing a material of the main component to react in advance with a part of a material of the fourth subcomponent to be included in the dielectric ceramic composition, and adding rest of material of the fourth subcomponent to be included in the dielectric ceramic composition into the post-reaction material. According to the present invention, both of a dielectric ceramic composition capable of improving the specific permittivity and a temperature characteristic of capacitance can be preferable, and the production method can be provided.

A crystalline perovskite crystalline composite paraelectric material includes nano-regions containing rich N³⁻ anions dispersed in a nano-grain sized matrix of crystalline oxide perovskite material, wherein (ABO_3-δ)_α-(ABO_3-δ-γN_γ)_1-α. A represents a divalent element, B represents a tetravalent element, γ satisfies 0.005≦γ≦1.0, 1-α satisfies 0.05≦1-α≦0.9, and 1-α is an area ratio between the regions containing rich N³⁻ anions and the matrix of remaining oxide perovskite material.

An electrically insulated conductor for carrying signals or current includes a solid or stranded copper core of various geometries with only a single electrically insulating and thermally conductive layer of anodized aluminum (aluminum oxide). The device is made by forming a uniform thickness thin sheet or foil of aluminum to envelop the copper or copper alloy core. The aluminum has its outer surface partially anodized either before or after forming to the core in an electrolytic process to form a single layer of aluminum oxide.

The present invention relates to a surface modified overhead conductor with a coating that allows the conductor to operate at lower temperatures. The coating contains about 5% to about 30% of an inorganic adhesive, about 45% to about 92% of a filler, about 2% to about 20% of one or more emissivity agents, and about 1% to about 5% of a stabilizer.