An electric wire contains a conductive wire having at least a groove structured on the surface of the conductive wire, and an additional wire to be filled into the groove. The groove is provided on an outer surface of the conductive wire along a longitudinal direction of the conductive wire. The additional wire is inserted in the groove.

An aluminum twisted wire includes a plurality of aluminum wires that are twisted together. Each of the aluminum wires includes a conductor having a plurality of wire elements that are twisted together, and an insulator covering the conductor. The wire elements forming the conductor are made of aluminum or aluminum alloy. A twisting direction of the wire elements and a twisting direction of the aluminum wires are the same. A wire harness includes this aluminum twisted wire.

An aluminum twisted wire includes a plurality of aluminum wires that are twisted together. Each of the aluminum wires includes a conductor having a plurality of wire elements that are twisted together, and an insulator covering the conductor. The wire elements forming the conductor are made of aluminum or aluminum alloy. A twisting direction of the wire elements and a twisting direction of the aluminum wires are the same. A wire harness includes this aluminum twisted wire.

An aluminum alloy element wire has a chemical composition including in mass percent: Mg: 0.3% or more and 0.9% or less, Si: 0.1% or more and 0.7% or less, Fe: 0.1% or more and 0.4% or less, at least one element selected from the group consisting of Cu, Cr, Ni, and Zr: 0.01% or more and 0.5% or less in total, and the balance being Al and unavoidable impurities. The aluminum alloy element wire has a surface roughness Ra in the range of 0.15 m or more and 2 m or less as measured with a non-contact surface roughness measuring machine. An aluminum alloy stranded wire includes a plurality of the aluminum alloy element wires twisted together. An automotive electric wire includes the aluminum alloy stranded wire. A wire harness includes the automotive electric wire, and a terminal crimped to the aluminum alloy stranded wire of the automotive electric wire.

An aluminum alloy element wire has a chemical composition including in mass percent: Mg: 0.3% or more and 0.9% or less, Si: 0.1% or more and 0.7% or less, Fe: 0.1% or more and 0.4% or less, at least one element selected from the group consisting of Cu, Cr, Ni, and Zr: 0.01% or more and 0.5% or less in total, and the balance being Al and unavoidable impurities. The aluminum alloy element wire has a surface roughness Ra in the range of 0.15 m or more and 2 m or less as measured with a non-contact surface roughness measuring machine. An aluminum alloy stranded wire includes a plurality of the aluminum alloy element wires twisted together. An automotive electric wire includes the aluminum alloy stranded wire. A wire harness includes the automotive electric wire, and a terminal crimped to the aluminum alloy stranded wire of the automotive electric wire.

A durable coating composition includes a silicate binder, a filler, and a crosslinking agent. The coating composition can reduce ice adherence and minimize ice accumulation through inclusion of a film forming lubricant. Articles and overhead conductors coated with such coating compositions are also disclosed.

A durable coating composition which reduces ice adherence and minimizes ice accumulation includes a silicate binder, a silane-modified filler, a film forming lubricant, and a crosslinking agent. Articles and overhead conductors coated with such coating compositions are also disclosed.

An electrical wire comprises a central Aluminum wire, wherein the central Aluminum wire is surrounded by at least one Copper wire and the aluminum wire and the copper wire are uncoated such that the Copper wire is in direct contact with the central Aluminum wire. 3-23% by volume of the electrical wire is made of Aluminum and the rest is made of Copper. At least one of the central wire and the surrounding wire has a purity of at least 95% to provide a high degree of contact between Aluminum and Copper.

An electrical wire comprises a central Aluminum wire, wherein the central Aluminum wire is surrounded by at least one Copper wire and the aluminum wire and the copper wire are uncoated such that the Copper wire is in direct contact with the central Aluminum wire. 3-23% by volume of the electrical wire is made of Aluminum and the rest is made of Copper. At least one of the central wire and the surrounding wire has a purity of at least 95% to provide a high degree of contact between Aluminum and Copper.

A process of producing a yarn, ribbon or sheet that includes nanofibers in which the process includes forming a yarn, ribbon or sheet comprising nanofibers, and applying an enhancing agent comprising a polymer to the yarn, ribbon or sheet.