Patent classifications
B22F9/22
Iron powder, silicon oxide coated iron powder,, molded article for inductor, and inductor
An iron powder and method of making an iron powder. The method includes a step of neutralizing an acidic aqueous solution containing a trivalent iron ion and a phosphorus-containing ion, with an alkali aqueous solution, so as to provide a slurry of a precipitate of a hydrated oxide, or a step of adding a phosphorus-containing ion to a slurry containing a precipitate of a hydrated oxide obtained by neutralizing an acidic aqueous solution containing a trivalent iron ion with an alkali aqueous solution. A silane compound is added to the slurry so as to coat a hydrolysate of the silane compound on the precipitate of the hydrated oxide. The precipitate of the hydrated oxide after coating is recovered through solid-liquid separation, the recovered precipitate is heated to provide iron particles coated with a silicon oxide, and a part or the whole of the silicon oxide coating is dissolved and removed.
PROCESSES, SYSTEMS, AND APPARATUS FOR CYCLOTRON PRODUCTION OF TECHNETIUM-99M
A system for producing technetium-99m from molybdate-100. The system comprises: a target capsule apparatus for housing a Mo-100-coated target plate; a target capsule pickup apparatus for engaging and delivering the target cell apparatus into a target station apparatus; a target station apparatus for receiving and mounting therein the target capsule apparatus. The target station apparatus is engaged with a cyclotron for irradiating the Mo-100-coated target plate with protons. The irradiated target capsule apparatus is transferred to a receiving cell apparatus comprising a dissolution/purification module for receiving therein a proton-irradiated Mo-100-coated target plate. A conveyance conduit infrastructure interconnects: (i) the target capsule pickup apparatus with the target station apparatus, (ii) the target station apparatus and the receiving cell apparatus; and (iii) the receiving cell apparatus and the dissolution/purification module.
PROCESSES, SYSTEMS, AND APPARATUS FOR CYCLOTRON PRODUCTION OF TECHNETIUM-99M
A system for producing technetium-99m from molybdate-100. The system comprises: a target capsule apparatus for housing a Mo-100-coated target plate; a target capsule pickup apparatus for engaging and delivering the target cell apparatus into a target station apparatus; a target station apparatus for receiving and mounting therein the target capsule apparatus. The target station apparatus is engaged with a cyclotron for irradiating the Mo-100-coated target plate with protons. The irradiated target capsule apparatus is transferred to a receiving cell apparatus comprising a dissolution/purification module for receiving therein a proton-irradiated Mo-100-coated target plate. A conveyance conduit infrastructure interconnects: (i) the target capsule pickup apparatus with the target station apparatus, (ii) the target station apparatus and the receiving cell apparatus; and (iii) the receiving cell apparatus and the dissolution/purification module.
METHOD FOR MANUFACTURING TITANIUM METAL POWDER OR TITANIUM ALLOY POWDER
Provided is a method for producing highly pure titanium metal powder or titanium alloy powder which may be used in various fields. The method includes steps of: a) partially reducing each of at least one metal oxide and a titanium oxide; b) preparing a first mixture by mixing the partially reduced metal oxide and titanium oxide together; c) preparing a second mixture by mixing the first mixture with calcium hydride; and d) producing titanium metal or a titanium alloy by completely reducing the second mixture.
METHOD FOR MANUFACTURING TITANIUM METAL POWDER OR TITANIUM ALLOY POWDER
Provided is a method for producing highly pure titanium metal powder or titanium alloy powder which may be used in various fields. The method includes steps of: a) partially reducing each of at least one metal oxide and a titanium oxide; b) preparing a first mixture by mixing the partially reduced metal oxide and titanium oxide together; c) preparing a second mixture by mixing the first mixture with calcium hydride; and d) producing titanium metal or a titanium alloy by completely reducing the second mixture.
ANISOTROPIC MAGNETIC POWDER, ANISOTROPIC MAGNET AND METHOD FOR MANUFACTURING ANISOTROPIC MAGNETIC POWDER
One embodiment of the present invention includes single-crystal particles of a TbCu.sub.7 type samarium-iron-nitrogen based alloy in an anisotropic magnet powder.
Magnetic powder, method for production thereof, and magnetic recording medium
A method for producing a magnetic powder includes performing a reduction treatment on the surface of particles including a hard magnetic material to form core-shell particles each having a shell portion including a soft magnetic material.
Magnetic powder, method for production thereof, and magnetic recording medium
A method for producing a magnetic powder includes performing a reduction treatment on the surface of particles including a hard magnetic material to form core-shell particles each having a shell portion including a soft magnetic material.
LOW-OXYGEN ALSC ALLOY POWDERS AND METHOD FOR THE PRODUCTION THEREOF
An alloy powder which has a composition Al.sub.xSc.sub.y, where 0.1≤y≤0.9 and x=1−y. The allow powder has purity of 99% by weight or more, based on metallic impurities, and an oxygen content of less than 0.7% by weight, based on a total weight of the alloy powder, as determined by a carrier gas hot extraction.
ANISOTROPIC MAGNETIC POWDERS
A method of producing anisotropic magnetic powders comprising obtaining a precipitate containing an element R, iron and lanthanum from a solution including R, iron and lanthanum, wherein R is at least one selected from the group consisting of Sc, Y, Pr, Nd, Pm, Sm, Gd, Tb, Dy, Ho, Er, Tm and Lu; obtaining an oxide containing R, iron and lanthanum from the precipitate; treating the oxide with a reducing gas to obtain a partial oxide; obtaining alloy particles by reduction diffusion of the partial oxide at a temperature in the range of 920° C. to 1200° C.; and nitriding the alloy particles to produce an anisotropic magnetic powder represented by the following general formula: R.sub.v-xFe.sub.(100-v-w-z)N.sub.wLa.sub.xW.sub.z, where 3≤v−x≤30, 5≤w≤15, 0.08≤x≤0.3, and 0≤z≤2.5.