摘要:
PROBLEM TO BE SOLVED: To deposit a porous thin nano powder sintered layer on a substrate.SOLUTION: A composite structure includes a substrate with pores of a first mean pore size and a coating on at least one surface of that substrate. The coating has pores of a second mean pore size. One method to form the porous coating on the substrate includes the steps of: (1) forming a suspension 41 of sinterable particles in a carrier fluid and containing the suspension 41 in a reservoir 43; (2) maintaining the suspension 41 by agitation in the reservoir 43; (3) transferring the suspension 41 to an ultrasonic spray nozzle 51; (4) applying a first coating of the suspension 41 to the substrate; and (5) sintering the sinterable particles to the substrate, thereby forming a coated substrate.
摘要:
PROBLEM TO BE SOLVED: To provide a flat soft magnetic material capable of producing a noise-suppressing magnetic sheet having sufficiently high magnetic permeability, and to provide a manufacturing method thereof. SOLUTION: The flat soft magnetic material is used for the noise-suppressing magnetic sheet, and the 50% particle size D 50 (μm), coercive force Hc (A/m) and bulk density BD (Mg/m 3 ) of the flat soft magnetic material satisfy formula (1): D 50 /(Hc×BD)≥1.5. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a permanent magnet whose magnetic performance can be improved by setting the crystal grain size of a sintered compact to not more than 3 μm by suppressing the grain growth of a magnet particle in sintering, and to provide a process for producing the permanent magnet. SOLUTION: A raw magnet material comprising 27-30% of Nd, 60-70% of Fe, and 1-2% of B is wet-pulverized into a fine powder of 3 μm or below; and an organic compound including a high-melting metallic element with an included metal constituent reaching 0.01-8 wt.%, or a precursor of high-melting ceramic with an included ceramic constituent reaching 0.01-8 wt.% or a dispersing agent is added to magnet powder during wet-pulverizing, thus dispersing the organic compound including a high-melting metallic element or the precursor of high-melting ceramic in a solvent along with the raw magnet material. Then, a resin binder is added into the solvent, and the magnet powder and the resin binder are kneaded to generate slurry 41. Then, by sintering a green sheet 42 with the generated slurry formed in a sheet shape, a permanent magnet 1 is produced. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a ferromagnetic metal particle powder improved in dispersibility without impairing flowability, and a method for manufacturing the same, and a magnetic recording medium using the ferromagnetic metal particle powder and having satisfactory surface smoothness. SOLUTION: A liquid-containing material containing goethite particle powder is frozen and is then subjected to vacuum drying, and heating treatment is performed to obtain a hematite particle powder. The hematite particle powder is subjected to heating reduction at 300 to 600°C, and since bulk is high and the particles are firmly condensed to each other, the particles are liable to be loosened by slight dispersion force and torque is apt to be exerted onto the particles in kneading during production of a magnetic paint and consequently the ferromagnetic metal particle powder which is high in the rate of filling into the magnetic recording layer and with which high surface smoothness can be obtained, can be provided. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
Transparent conductive coated devices (films, three dimensional objects and others) produced through coating with a nano metal containing emulsion which forms a conductive pattern with enhanced electrical, optical and other properties.