An inductive sensor includes a core body, a coil wound on the core body, a cavity having a fixed volume within the core body, and an epoxy mixture filling a controlled portion of the fixed volume. The controlled portion of the fixed volume filled with the epoxy mixture controls an inductance of the sensor.

A layered metal -graphene-metal nanolaminate electrical connector with improved wear performance and reduced friction. An electrical connector has a chemical vapor deposition (CVD) monolayer graphene sheet sandwiched between two copper layers resulting in a decrease in friction of coefficient and an improvement in wear resistance of an electrical contact.

The disclosure relates to a metal nanowire structure. The metal nanowire structure includes a substrate and a metal nanowire film located on the substrate. The metal nanowire film includes a number of first metal nanowires parallel with and spaced from each other. A width of each of the plurality of first metal nanowires is in a range from about 0.5 nanometers to about 50 nanometers. Each of the plurality of first metal nanowires is a solid structure and consists of metal material.

A copper alloy wire can be used as a conductor. The copper alloy wire is made of a copper alloy containing: not less than 0.4 mass % and not more than 1.5 mass % of Fe; not less than 0.1 mass % and not more than 0.7 mass % of Ti; not less than 0.02 mass % and not more than 0.15 mass % of Mg; not less than 10 mass ppm and not more than 500 mass ppm in total of C and at least one of Si and Mn; and the balance of Cu and impurities. The copper alloy wire has a wire diameter of not more than 0.5 mm. Preferably, a mass ratio Fe/Ti in the copper alloy is not less than 1.0 and not more than 5.5.

A copper alloy for an electronic and electric device includes: Mg in a range of 0.1 mass % or more and less than 0.5 mass %; and a Cu balance including inevitable impurities, wherein a graph, in which a vertical axis is d.sub.t/d.sub.t and a horizontal axis is a true strain .sub.t, d.sub.t/d.sub.t being defined by a true stress .sub.t and the true strain .sub.t, obtained in a tensile test of the copper alloy, has a strained region that has a positive slope of d.sub.t/d.sub.t.

A method of producing nano-composites has the following steps: providing a solution, with the solution having a substrate and a precursor of a zero-dimensional nanoparticles; and subjecting a surface of the solution to a plasma to activate the precursor to generate the zero-dimensional nanoparticles in the solution. The nanoparticles are self-assembled on the substrate uniformly to generate the nano-composites.

The present invention seeks to provide a technology that is capable of crimping a terminal adequately to a portion where a plurality of metal strands are welded. A conductive member is configured by a plurality of coated metal wires provided with a plurality of metal strands and with an electrically conductive sheath covering a circumference of each of the plurality of metal strands. The conductive member includes a welded portion, in which at least a portion in an extension direction of the plurality of coated metal wires is welded, and the welded portion includes an outer layer that is formed on an outer circumference side by welding the plurality of coated metal wires together, and at least a portion of the plurality of coated metal wires on an inner side of the outer layer is capable of untwining due to crimping a terminal.

An object of the present invention is to enable sufficient welding of multiple metal wires in at least a portion of a conductive member that is constituted by multiple metal wires. The conductive member includes multiple metal wires each including a metal strand and a metal covering layer formed around the metal strand, and a joined portion in which the metal wires are joined by melting of alloy portions of the metal covering layers, the alloy portions including the metal that forms the metal strands. The joined portion can be formed by joining the metal wires to each other by performing heating at a temperature higher than the melting point of the alloy portions of the metal covering layers, the alloy portions including the metal that forms the metal strands.

A copper alloy wire rod containing Ag: 0.5 wt % or more and 6 wt % or less and the balance including inevitable impurities and Cu, in which, on a cross section parallel to a longitudinal direction of the copper alloy wire rod, within a range observed with a visual field of 1.7 m in a direction perpendicular to the longitudinal direction and 2.3 m in a direction parallel to the longitudinal direction, the copper alloy wire rod has at least one rectangular range that is a rectangular range having a width perpendicular to the longitudinal direction of 0.2 m and a length parallel to the longitudinal direction of 2.3 m and entirely includes five or more second phase particles containing Ag and having a maximum length in the longitudinal direction of less than 300 nm.

An electro-conductive paste includes a metal particle and a vehicle in which the metal particle is dispersed. The metal particle has a particle size in a range from 1 m to 20 m and consists of an outer shell and a core part. The core part contains Sn or a Sn alloy. The outer shell contains an intermetallic compound of Sn and Cu and covers 50% or more of a total surface area of the core part.