Abstract: A direct-current electric motor (an electrically powered machine) is a 3-pole brush-equipped direct-current electric motor which is provided with an armature (a rotor), a field element (a stator), a shaft, a commutator, a brush, a bracket, and an end plate. Of these, the armature (an armature) is provided with a dust core configured with a compressed powder compact formed of magnetic powder, and a coil buried in the dust core. On the other hand, the field element is provided with a field magnet which generates a magnetic flux, and a yoke housing which supports the field magnet and also functions as a housing.

Abstract: A sintered body production method includes a first step in which temperature elevation is started based on a first temperature elevation program in a firing furnace in a state where a molded body containing a metal powder and an organic binder is placed in the firing furnace, a second step in which a vacuum degree or a dew point in the firing furnace is measured in the course of elevating the temperature, and a third step in which temperature elevation is performed by applying a second temperature elevation program in place of the first temperature elevation program when the vacuum degree or the dew point measured in the second step does not satisfy a predetermined condition, and temperature elevation is performed by applying the first temperature elevation program when the vacuum degree or the dew point measured in the second step satisfies the predetermined condition.

Abstract: A method for producing an electrical wiring member includes press-molding a composition containing a resin material and metal particles with an insulating layer, each of which is constituted by a metal particle and a surface insulating layer covering the metal particle and containing a glass material as a main material, thereby obtaining a powder-compacted layer and irradiating the powder-compacted layer with an energy beam, thereby causing the irradiated regions to exhibit electrical conductivity.

Abstract: A metal powder comprising particles, which contain Fe, Cr, Si and C, and in which when one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta is defined as a first element, and one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta, and having a higher group number in the periodic table than that of the first element or having the same group number in the periodic table as that of the first element and a higher period number in the periodic table than that of the first element is defined as a second element, the first element is contained in a proportion of 0.01% by mass or more and 0.5% by mass or less, and the second element is contained in a proportion of 0.01% by mass or more and 0.5% by mass or less.

Abstract: A metal powder comprising particles, which contain Fe, Cr, C and Si, and in which when one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta is defined as a first element, and one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta, and having a higher group number in the periodic table than that of the first element or having the same group number in the periodic table as that of the first element and a higher period number in the periodic table than that of the first element is defined as a second element, the first element is contained in a proportion of 0.01% by mass or more and 0.5% by mass or less, and the second element is contained in a proportion of 0.01% by mass or more and 0.5% by mass or less.

Abstract: A metal powder contains Fe as a principal component, Cr in a proportion of 10 to 30 mass %, C in a proportion of 0.15 to 1.5 mass %, Si in a proportion of 0.3 to 1 mass %, and Mn and Ni in a total proportion of 0.05 to 1.6 mass %, wherein when Ti, V, Y, Zr, Nb, Hf, and Ta is defined as a first element, and one element selected from the group and having a larger group number in the periodic table than that of the first element or having the same group number in the periodic table as that of the first element and a larger period number than that of the first element is defined as a second element, the first element is contained in a proportion of 0.01 to 0.5 mass %, and the second element is contained in a proportion of 0.01 to 0.5 mass %.

Abstract: A metal powder for powder metallurgy according to the invention contains Fe as a principal component, Cr in a proportion of 15 mass % or more and 26 mass % or less, Ni in a proportion of 7 mass % or more and 22 mass % or less, Si in a proportion of 0.3 mass % or more and 1.2 mass % or less, and C in a proportion of 0.005 mass % or more and 0.3 mass % or less, wherein when two elements selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta are defined as a first element and a second element, the first element is contained in a proportion of 0.01 mass % or more and 0.5 mass % or less and the second element is contained in a proportion of 0.01 mass % or more and 0.5 mass % or less. Further, the metal powder for powder metallurgy preferably has an austenite crystal structure.

Abstract: A metal powder for powder metallurgy according to the invention contains Fe as a principal component, Cr in a proportion of 6 mass % or more and 32 mass % or less, Si in a proportion of 0.3 mass % or more and 3 mass % or less, and C in a proportion of 0.005 mass % or more and 1.4 mass % or less, wherein when one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta is defined as a first element, and one element selected from the group and having a larger group number in the periodic table than that of the first element or having the same group number in the periodic table as that of the first element and a larger period number than that of the first element is defined as a second element, the first element is contained in a proportion of 0.01 mass % or more and 2 mass % or less, and the second element is contained in a proportion of 0.01 mass % or more and 2 mass % or less.

Abstract: A dental casting billet material includes: Co as a main component; Cr in a proportion of 26% by mass or more and 35% by mass or less; Mo in a proportion of 5% by mass or more and 12% by mass or less; and Si in a proportion of 0.3% by mass or more and 2.0% by mass or less, wherein the billet material is formed from a sintered body of a metal powder, and the billet material has a relative density of 92% or more and 99.5% or less.

Abstract: A composition for injection molding includes: an inorganic powder composed of at least one of a metal material and a ceramic material; and a binder containing a polyacetal-based resin, an unsaturated glycidyl group-containing polymer, and a lubricant. In the composition, the unsaturated glycidyl group-containing polymer is contained in an amount of 1% by mass or more and 30% by mass or less with respect to the amount of the polyacetal-based resin.

Abstract: A composition for injection molding includes: an inorganic powder composed of at least one of a metal material and a ceramic material; and a binder containing a polyacetal-based resin and an ethylene-glycidyl methacrylate-based copolymer. In the composition, the ethylene-glycidyl methacrylate-based copolymer is contained in an amount of 1% by mass or more and 30% by mass or less with respect to the amount of the polyacetal-based resin.

Abstract: A package base includes a package base body and a bonding metal layer provided in a frame shape or a ring shape in plan view on the package base body, wherein the bonding metal layer contains a Ti—Ag—Cu-containing alloy and a metal belonging to Group 6 in the periodic table.

Abstract: A method of manufacturing an electric wiring layer including an electric wiring includes obtaining a pressed powder molded layer by pressurizing a powder including a metal particle with an insulating layer, the metal particle being constituted by a metal particle having conductivity and a surface insulating layer which is located on a surface of the metal particle and which mainly contains a glass material; and irradiating the pressed powder molded layer with energy rays and forming the electric wiring in an irradiation region.

Abstract: A metal powder for powder metallurgy includes particles each having a first region containing Fe as a principal component, a second region, in which the content of a first element is higher than in the first region, the content of Si is higher than in the first region, and the content of Fe is lower than in the first region, and a third region, in which the content of a second element is higher than in the first region, the content of Si is higher than in the first region, and the content of Fe is lower than in the first region. Further, the first region occupies 50% by volume or more of each of the particles and also is crystalline.

Abstract: A metal powder for powder metallurgy contains Fe as a principal component, Cr in a proportion of 15% by mass or more and 26% by mass or less, Ni in a proportion of 7% by mass or more and 22% by mass or less, Si in a proportion of 0.3% by mass or more and 1.2% by mass or less, C in a proportion of 0.005% by mass or more and 0.3% by mass or less, Zr in a proportion of 0.01% by mass or more and 0.5% by mass or less, and Nb in a proportion of 0.01% by mass or more and 0.5% by mass or less. Further, the metal powder for powder metallurgy preferably has an austenite crystal structure.

Abstract: A base substrate includes a ceramic sintered substrate having through holes, first and second metal wirings which are integrally disposed so as to be connected to the surface of the ceramic sintered substrate and the inside of the through holes, and first and second active metal layers which are disposed between the ceramic sintered substrate and the first and second metal wirings.

Abstract: A blank material to be cut for dentistry includes: Co as a main component; Cr at a ratio equal to or higher than 26 mass % and equal to or less than 35 mass %; Mo at a ratio equal to or higher than 5 mass % and equal to or less than 12 mass %; Si at a ratio equal to or higher than 0.3 mass % and equal to or less than 2.0 mass %; and N at a ratio equal to or higher than 0.09 mass % and equal to or less than 0.5 mass %. The blank material is formed of a sintered body of a metal powder.

Abstract: A manufacturing method of a compact including pressure molding a composition including a metallic powder and a binder to obtain a green compact in which a relative density of a constituent material of the metallic powder with respect to real density is greater than or equal to 70% and less than or equal to 90%; and processing the green compact to obtain a compact.

Abstract: A dental component is formed from a sintered body of a metal powder having particles containing Co, Cr, Mo, and Si as constituent components. In the particles, Co is contained as a main component, the content of Cr is 26% by mass or more and 35% by mass or less, the content of Mo is 5% by mass or more and 12% by mass or less, and the content of Si is 0.3% by mass or more and 2.0% by mass or less. The dental component has excellent proof stress and corrosion resistance. It is preferred that a part of Si in the sintered body is contained as silicon oxide, and the ratio of the content of Si contained as the silicon oxide to the content of Si in the sintered body is 20% or more and 80% or less.

Abstract: In a method for producing a sintered compact, a composition containing metal powder and an organic binder is formed into a given shape. When baking is performed by using a baking furnace inside of which a jig containing silica is provided, a furnace atmosphere of the baking furnace is set to be an atmosphere of inert gas, a furnace pressure is controlled to be 0.1 kPa or more but 100 kPa or less, and the furnace pressure during baking is increased at a time when the process is in the middle of heating-up.