Abstract: Problem There is proposed an innovative cross-sectional structure, with an idea contrary to the conventional one, utilizing the non-reactivity between Cu and Ta (or between Ag and Nb, Ta) in a high-temperature short-time heat treatment, thus achieving (1) the suppression of the low magnetic-field instability, (2) excellent wire drawability of a precursor wire, and (3) the reduction of the cost required for the incorporation of a stabilizer. Means for Resolution There is proposed a structure having an assembly of a plurality of single wires, wherein the assembly is covered with an outer cover (skin) formed from Nb or Ta, wherein each of the single wires has an Nb/Al composite filament region which is formed from a composite of Nb and Al mixed in an Nb:Al molar ratio of 3:1, and which is covered with a partition formed from Nb or Ta, and further covered with an interfilamentary barrier formed from Cu or Ag disposed around the partition.

Abstract: A mixed powder of an Ni—Al alloy and alumina is produced by heating a first mixed powder, which is prepared by mixing an Ni—Al mixed powder as prepared by mixing an Al powder with Ni in such a manner that Al therein could fall within a range of from 25 atomic % to 60 atomic %, and an alumina powder in a range of from 40% by mass to 60% by mass, in vacuum or in an inert gas atmosphere at a temperature falling within a range of from 600° C. to 1300° C. for at least 1 hour, and then grinding the resulting product.

Abstract: A welding wire is formed from a hoop having an inner surface and formed from a metal material, a core wire having a surface and formed from a metal material, and an alkaline metal compound. The hoop metal material and the core wire metal material are different from each other. A composition of the welding wire is divided into the hoop metal material and the core wire metal material. The alkaline metal compound is disposed between the inner face of the hoop and the surface of the core wire. An amount of the alkaline metal compound is from more than 10 ppm to 1000 ppm based on a weight of the welding wire.

Abstract: A ferromagnetic tunnel junction structure comprising a first ferromagnetic layer, a second ferromagnetic layer, and a tunnel barrier layer that is interposed between the first ferromagnetic layer and the second ferromagnetic layer, wherein the tunnel barrier layer includes a crystalline non-magnetic material having constituent elements that are similar to those of an crystalline oxide that has spinel structure as a stable phase structure; the non-magnetic material has a cubic structure having a symmetry of space group Fm-3m or F-43m in which atomic arrangement in the spinel structure is disordered; and an effective lattice constant of the cubic structure is substantially half of the lattice constant of the oxide of the spinel structure.

Abstract: [Problem to be Solved] To provide a ZnO coating having low friction not only in a vacuum but in a liquid such as oil. [Solution] The low-friction ZnO coating, comprising (002) and (103) planes, and further comprising (100), (101), (102), and (104) planes in lower proportions than those of the (002) and (103) planes, has been prepared by sputtering using a zinc target in a sputter gas environment, wherein the sputter gas comprises an inert gas and oxygen gas, and the oxygen gas ratio is controlled. This coating has a specifically good low friction coefficient due to the piezoelectric effect, and this friction reduction mechanism is maintained even in oil such as n-hexadecane. Thus, this coating has been found to have excellent low-friction properties.

Abstract: A piezoelectric ceramic having excellent electrical characteristics, and in which all of three crystallographic axes are oriented is obtained by slip cast or sheet forming a ceramic slurry containing plate-shaped ceramic particles in magnetic field. The degree of orientation of a first axis (for example, a c axis) calculated with the Lotgering method based on an X-ray diffraction (XRD) pattern in a prescribed cross-section of this piezoelectric ceramic is not less than 0.30. With a cross-section where the degree of orientation of the first axis indicates a maximum value being defined as a reference plane, the degree of orientation of a second axis (for example, an a axis) calculated with the Lotgering method based on an X-ray diffraction pattern in a cross-section orthogonal to this reference plane is not less than 0.20.

Abstract: A method for providing a phosphor, including a kneading step in which a raw material is kneaded to provide a raw material mixture; a sintering step in which the raw material mixture is sintered; and a heat treatment step in which the sintered raw material mixture is heat-treated, wherein the raw material includes at least one or more M-containing materials selected from MSi2, MSiN2, M2Si5N8, M3Al2N4 and MSi6N8, wherein M is one or more divalent elements selected from M(0) and M(1).

Abstract: The present invention is a garnet-type single crystal represented by the following general formula: (Tb3-xScx) (Sc2-yAly)Al3O12-z ??(1) (wherein, x satisfies 0<x<0.1).

Abstract: A magnesium-based medical device which can adjust a degree of corrosion within a wide range of period such that the device can maintain a sufficient strength only during a desired period and disappears within a desired period thereafter and a manufacturing method thereof are provided. A magnesium-based medical device of the present invention is a magnesium-based medical device in which a base material is made of magnesium or a magnesium alloy, wherein a corrosion-resistant film is formed on a surface of the base material, and variation in surface hardness of the formed corrosion-resistant film in the in-plane direction is less than 21 in terms of a dispersion value of Vickers hardness.

Abstract: A method of producing silicon carbide is provided. The method includes heating a cured product of a curable silicone composition in a non-oxidizing atmosphere at a temperature exceeding 1,500° C. but not more than 2,600° C. The method is capable of producing high-purity silicon carbide simply and at a high degree of productivity, and is capable of simply producing a silicon carbide molded item having a desired shape and dimensions.

Abstract: According to one embodiment, an optical element is provided with a paraelectric crystal, first and second pressers between which the paraelectric crystal is sandwiched, and fasteners. The paraelectric crystal has a periodic structure in which polarities are periodically inverted along a polarity period direction. The fasteners fix the first and second pressers to each other so that a predetermined pressure is applied in a direction intersecting with the polarity period direction, to the paraelectric crystal through the first and second pressers.