Copper alloy wire and method for producing the same
US9165695B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 13, 2010 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Nov 24, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The zirconium content of the alloy composition of a copper alloy wire is 3.0 to 7.0 atomic percent; and the copper alloy wire includes copper matrix phases and composite phases composed of copper-zirconium compound phases and copper phases. The copper matrix phases and the composite phases form a matrix phase-composite phase fibrous structure and are arranged alternately parallel to an axial direction as viewed in a cross-section parallel to the axial direction and including a central axis. The copper-zirconium compound phases and the copper phases in the composite phases also form a composite phase inner fibrous structure and are arranged alternately parallel to the axial direction at a phase pitch of 50 nm or less as viewed in the above cross-section. This double fibrous structure presumably makes the copper alloy wire densely fibrous to provide a strengthening mechanism similar to the rule of mixture for fiber-reinforced composite materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.