Production of aluminum-aluminum oxide dispersion composite conductive material and product thereof
US3982906A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1973 |
| Grant date | Sep 28, 1976 |
| Priority date | — |
| Expiry date | Nov 14, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S75/951
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Manufacture of an aluminum-aluminum oxide dispersion composite conductive material (hereinafter referred to as Al-Al.sub.2 O.sub.3 dispersion composite conductive material) by compacting aluminum powder prepared by the atomization method, the particles having an oxide film with a thickness of about 100 A, and heat-treating the resultant compacted material in a vacuum or in a reducing gas or inert gas atmosphere at a temperature of 660.degree. to 700.degree.C. The composite conductive material thus obtained has a structure, in which the aluminum oxide is uniformly dispersed in aluminum, and it is capable of high speed wire drawing. Its electrical conductivity is 56.5 to 63.2 percent IACS (International Annealed Copper Standard), and its aluminum oxide content is 0.01 to 0.2 weight percent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.