Accession Number:

AD0744702

Title:

Heat Transfer and Attrition Processes at the Anode of Pulsed High Intensity Arcs

Descriptive Note:

Final rept. 16 Jun 1970-15 Dec 1971

Corporate Author:

MINNESOTA UNIV MINNEAPOLIS DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

• Smith, J. L.
• Pfender, E.
• Eckert, E. R. G.

Report Date:

1972-03-01

Pagination or Media Count:

53.0

Abstract:

Tests of a high current pulsed arc with the intent to investigate anode erosion characteristics are described. The range of arc parameters covers currents from 5000 to 10,000 amps square pulse with time intervals from 20 to 200 x 10 to the minus 6th power. The arc is designed to be stationary i.e., there are no external magnetic fields and the arc configuration produces self- magnetic fields which are symmetric so as not to move it. Spectrometric investigations reveal that there is no anode vaporization for the range of parameters investigated. A computer program is described for solving the one- dimensional problem of a constant heat flux impinging on a surface of a material with temperature dependent properties with a liquid-solid interface penetrating the material.

Descriptors:

• *ELECTRODES
• *ELECTRIC ARCS
• TEST EQUIPMENT
• EROSION
• ANODES
• HEAT FLUX
• CATHODES
• COPPER

Subject Categories:

• Electrical and Electronic Equipment
• Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE