MHD generator electrode development. Quarterly report, April-June 30, 1981

Emphasis within this program is the detail metallurgical and engineering understanding of cold metallic electrodes which are alternatives to the continued use of platinum as an anode clad material. The results of evaluating materials for MHD electrodes through use of a laboratory electrochemical and arc test are presented. Results for standard available materials as well as for some specially fabricated ones are presented. The development of a high temperature (1100/sup 0/C to 1400/sup 0/C) electrochemical test is outlined. Initial operation of the Westinghouse Electrode Systems Test Facility (WESTF), since major modification to include a magnet, is reported for a test section designed to operate as a small scale MHD generator and for test sections designed for the purpose of materials test evaluation in the operating MHD plasma environment.