An oxide superconducting wire includes two superconducting laminates that are superposed on each other in a thickness direction. Each superconducting laminate includes a tape-shaped substrate, an intermediate layer disposed on one face of the substrate, an oxide superconducting layer disposed on the intermediate layer, and a protective layer covering a surface of the oxide superconducting layer. The two superconducting laminates are integrated by a metal layer that is disposed at least on both lateral faces of the two superconducting laminates in a width direction, such that the two superconducting laminates form a non-fixed portion therebetween that is not fixed in a longitudinal direction of the superconducting laminates.

A superconducting bulk magnet comprising a plurality of superconducting bulk materials combined, in which breakage of superconducting bulk materials is prevented and a strong magnetic field can be generated, that is, a superconducting bulk magnet comprising a plurality of superconducting bulk materials, each comprising a single-crystal formed RE.sub.1Ba.sub.2Cu.sub.3O.sub.y (RE is one or more elements selected from Y or rare earth elements, where 6.8y7.1) in which RE.sub.2BaCuO.sub.5 is dispersed and each provided with a top surface, a bottom surface, and side surfaces, combined together, in which superconducting bulk magnet, bulk material units, each comprising a superconducting bulk material and a bulk material reinforcing member arranged so as to cover a side surface of the same, are arranged facing the same direction and contacting each other to form an assembly, a side surface of the assembly is covered by an assembly side surface reinforcing member, a top surface and bottom surface of the assembly are respectively covered by an assembly top reinforcing member and an assembly bottom reinforcing member, and the assembly side surface reinforcing member, the assembly top reinforcing member, and the assembly bottom reinforcing member are joined into an integral unit, is provided.

A superconducting bulk magnet comprising a plurality of superconducting bulk materials combined, in which breakage of superconducting bulk materials is prevented and a strong magnetic field can be generated, that is, a superconducting bulk magnet comprising a plurality of superconducting bulk materials, each comprising a single-crystal formed RE.sub.1Ba.sub.2Cu.sub.3O.sub.y (RE is one or more elements selected from Y or rare earth elements, where 6.8y7.1) in which RE.sub.2BaCuO.sub.5 is dispersed and each provided with a top surface, a bottom surface, and side surfaces, combined together, in which superconducting bulk magnet, bulk material units, each comprising a superconducting bulk material and a bulk material reinforcing member arranged so as to cover a side surface of the same, are arranged facing the same direction and contacting each other to form an assembly, a side surface of the assembly is covered by an assembly side surface reinforcing member, a top surface and bottom surface of the assembly are respectively covered by an assembly top reinforcing member and an assembly bottom reinforcing member, and the assembly side surface reinforcing member, the assembly top reinforcing member, and the assembly bottom reinforcing member are joined into an integral unit, is provided.

According to one embodiment, nano metal compound particles are provided. The nano metal compound particles have an average particle size of 50 nm or less. The nano metal compound particles have a peak ?.sub.t of 2.8 eV or less. The peak ?.sub.t corresponds to a resonant frequency of an oscillator according to a spectroscopic ellipsometry method fitted to a Lorentz model.

According to one embodiment, nano metal compound particles are provided. The nano metal compound particles have an average particle size of 50 nm or less. The nano metal compound particles have a peak ?.sub.t of 2.8 eV or less. The peak ?.sub.t corresponds to a resonant frequency of an oscillator according to a spectroscopic ellipsometry method fitted to a Lorentz model.

This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.

This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.

This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.

This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.

The present invention provides an oxide superconducting bulk magnet which can obtain a sufficient amount of total magnetic flux, by preventing the superconducting bulk body from being broken due to electromagnetic stress and quenching phenomenon to enable magnetization by a strong magnetic field.

An oxide superconducting bulk magnet comprising

an oxide superconducting bulk body wherein RE.sub.2BaCuO.sub.5 is dispersed in a monocrystalline RE.sub.1Ba.sub.2Cu.sub.3O.sub.y; and

an outer peripheral reinforcing ring fitted to the outer periphery of the oxide superconducting bulk body,

wherein the outer peripheral reinforcing ring is made of a plurality of metal rings having a multiple ring structure in the radial direction,

at least one of the plurality of metal rings has a thermal conductivity of 20 W/(m.Math.K) or more at a temperature of 20 to 70 K and at least one of the plurality of metal rings has a higher strength than the metal ring having a thermal conductivity of 20 W/(m.Math.K) or more.