The invention provides an ultra-flexible indoor accompanying photoelectric composite cable, and the cable comprises a plurality of power transmission components, optical fiber transmission components and structural strengthening components, which are covered by a highly flame-retardant outer protective layer. The power transmission component comprises a cable core which is a soft conductor and an insulating material layer wrapped around the cable core. The optical fiber transmission component is a tight tube optical fiber, and the power transmission components and the optical fiber transmission components are arranged in parallel inside the highly flame-retardant outer protective layer. The composite cable of the invention has very strong pressure resistance, stress resistance, and reciprocating resistance, good electrical and physical properties and more excellent environment resistant performance. Furthermore, the composite cable can simplify construction procedures, improve working efficiency and reduce construction cost.

Described is a composition suitable for the preparation of an electroconductive transparent layer, said composition comprising a mixture of water and one or more alcohols, electroconductive nanoobjects and one or more dissolved styrene/(meth)acrylic copolymers.

An alloy material includes: a composition, in a composition range of a ternary alloy of silver (Ag), palladium (Pd), and copper (Cu), the composition containing 20 to 30 wt % of Ag, 35 to 55 wt % of Pd, and 20 to 40 wt % of Cu. The composition as a base is added with tin (Sn) in a range of 0.5 to 2.5 wt %, further added with any one of or a combination of cobalt (Co), chromium (Cr), and zinc (Zn) in a range of 0.1 to 1.0 wt %, and added with 0.01 to 0.1 wt % of either one of or a combination of iridium (Ir) and ruthenium (Ru).

An insulated electric wire and a method of producing the electric wire are provided. The insulated electric wire includes: a copper wire; and an insulating coating formed on a surface of the copper wire by an electrodeposition method. A cross section shape of the insulated electric wire including the insulating coating is in a hexagonal shape, a chamfered part that suppresses swelling of the insulating coating is formed on each corner part of a hexagonal cross section of the copper wire, a length of the chamfered part is to 1/20 of a length of a flat part of the hexagonal cross section, and a void ratio in a wound state is 5% or less.

A copper alloy wire, a copper alloy twisted wire, a covered electric wire, and a wiring harness that have high strength and excellent impact resistance. A copper alloy wire for use as a conductor has a ratio of 0.2% proof stress to tensile strength that is 0.87 or less. A copper alloy twisted wire includes a plurality of the twisted copper alloy wires. A covered electric wire includes a conductor including the copper alloy wire and an insulation cover that covers an outer periphery of the conductor. A wiring harness includes the covered electric wire, and a terminal metal fitting that is attached to the conductor of the covered electric wire.

A composite structure comprises a copper layer and first and second graphene layers sandwiching the copper layer, wherein the composite structure provides electron-path tunnels between the copper layer and the first and second graphene layers. The electron-path tunnels may enhance the electrical conductivity. A multilayer composite structure comprises a first copper layer, a first graphene layer on the first copper layer, a second graphene layer on the first graphene layer, and a second copper layer on the second graphene layer.

A single-core cable is protected over a long region by a pipe. A conductive path includes: a single-core cable in which end portions of a single-core wire are exposed; a first stranded cable in which an end portion of a first stranded wire that is exposed is coaxially fixed to the one end portion of the single-core wire; a second stranded cable in which an end portion of a second stranded wire that is exposed is coaxially fixed to the other end portion of the single-core wire; and a pipe that has an inner diameter dimension capable of surrounding the single-core cable and the first stranded cable, and is axially displaceable between a protective position at which only the single-core cable is surrounded, and an exposed position at which the one end portion of the single-core wire and the first stranded cable are surrounded, and the other end portion of the single-core wire is exposed.

Provided herein are compositions and methods of forming compositions that include ethylene-vinyl acetate, alumina trihydrate, a peroxide, and an ultra-high molecular weight (UHMW) silicone elastomer. The UHMW silicone elastomer may be added after the other components of the composition have been added in the methods provided herein. Also provided herein are composite materials that include a wire.

This conductive paste is such that the printing properties and sintering properties are superior and is formed such that resistance of wiring after sintering is lowered. This conductive paste is characterized by being formed from copper-based metal particles and by an aspect ratio (dmax/dmin), which is defined as the ratio of the maximum diameter (dmax) and minimum diameter (dmin) for the metal particles, being greater than or equal to 1.0 and smaller than 2.2.

A hot-rolled copper plate consists of pure copper having a purity of 99.99 mass % or greater, the hot-rolled copper plate having an average crystal grain diameter of 40 m or less, and a (3+9) grain boundary length ratio (L (3+9)/L), which is a ratio between a total crystal grain boundary length L measured by an EBSD method and a sum L (3+9) of a 3 grain boundary length L3 and a 9 grain boundary length L9, being 28% or greater.