Production of aluminum-aluminum oxide dispersion composite condu

Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator

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75206, 75212, 75138, 75148, B22F 300, C22C 2100

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active

039829065

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.

REFERENCES:
patent: 3066391 (1962-12-01), Vordahl
patent: 3278301 (1966-10-01), Solomir et al.
patent: 3366479 (1968-01-01), Storchheim et al.
patent: 3394000 (1968-07-01), Gualandi et al.
patent: 3791800 (1974-02-01), McGee
Matthews, International Journal of Powder Met, 4(4), 1968, pp. 39-46.
Alcoa Aluminum Handbook, p. 141, 1957, Aluminum Company of Amer.

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