THE DEVELOPMENT OF A LOW-TEMPERATURE CYLINDRICAL THERMIONIC GENERATOR.
Abstract
A converter Type A-1198B, Serial No. 14, remained on life test for 4470 hours at approximately 150 percent of output power rating with a constant level of 63 watts. The three-converter module A-1274, Serial No. 10 was operated over an emitter temperature range of 1200 to 1350 C for approximately 30 hours with a maximum output of 76 watts. Fabrication of two improved type A-1274 modules was completed. Preliminary tests of these modules indicated the need for modifications of the end-cap diaphragm, ceramic-to-metal seal, and radiator fin configuration. The design and fabrication of the gas injection system was completed and preliminary tests of the system were begun. Two A-1194E converter test vehicles were built to evaluate nickel and molybdenum matrix impregnated with tungsten trioxide as collector materials. Two modified A-1195 variable spacing converters were built, and molybdenum and niobium collectors were tested at high collector temperatures.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1964
- Accession Number
- AD0607086