AMTEC cell testing, optimization of rhodium/tungsten electrodes, and tests of other componentsElectrodes, current collectors, ceramic to metal braze seals, and metallic components exposed to the high 'hot side' temperatures and sodium liquid and vapor environment have been tested and evaluated in laboratory cells running for hundreds of hours at 1100-1200 K. Rhodium/tungsten electrodes have been selected as the optimum electrodes based on performance parameters and durability. Current collectors have been evaluated under simulated and actual operating conditions. The microscopic effects of metal migration between electrode and current collector alloys as well as their thermal and electrical properties determined the suitability of current collector and lead materials. Braze seals suitable for long term application to AMTEC devices are being developed.
Document ID
19930029813
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Williams, Roger M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ryan, Margaret A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Jeffries-Nakamura, Barbara (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Underwood, Mark L. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
O'Connor, Dennis (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kikkert, Stan (JPL Pasadena, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: Space nuclear power systems; Proceedings of the 8th Symposium, Albuquerque, NM, Jan. 6-10, 1991. Pt. 1 (A93-13751 03-20)