Method for gas bubble and void control and removal from metals

Details Method for gas bubble and void control and removal from metals Method for gas bubble and void control and removal from metals

1994-06-13

1996-02-06

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Fission reactor material treatment

Impurity removal

376314, G21C 1900

Patent

active

054901871

ABSTRACT:
A method for enhancing the diffusion of gas bubbles or voids attached to impurity precipitates, and biasing their direction of migration out of the host metal (or metal alloy) by applying a temperature gradient across the host metal (or metal alloy). In the preferred embodiment of the present invention, the impurity metal is insoluble in the host metal and has a melting point lower than the melting point of the host material. Also, preferably the impurity metal is lead or indium and the host metal is aluminum or a metal alloy.

REFERENCES:
patent: 3969631 (1976-07-01), Winsche et al.
Van Siclen et al., Anamalous Helium Bubble Diffusion in Dilute Aluminum Alloys, Physical Review Letters, vol. 68, No. 26, pp. 3892-3895 (Jun. 29, 1992).

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