Year: 1993
Type: article
Abstract: The operational performance of a ``six-pack`` of cermet anodes and corrosion rates was evaluated in a six kA pilot reduction cell at Reynolds` Manufacturing Technology Laboratory. Two separate test periodswere conducted with the cermet anodes; the first period was in conjunction with the Pacific Northwest Laboratory and the second with ELTECH Research Corporation. Both tests used identical NiO-NiFe{sub 2}O{sub 4}-Cu anodes manufactured by Ceramic Magnetics, Inc.. The ELTECH testing involved the in situ coating of the anodes with cerium oxide. Primary evaluations for both test periods were conducted at target conditions of alumina saturation and 0.5 amp/cm{sup 2} anode current density. Individual anodes remained in operation for 25 days during the two and one-half month testing period. Operational difficulties developed throughout the test due to breakage of the anode conductor stems, cracking and breaking of the cermet anodes, unequal anode current distribution, and alumina muck build-up in the cell. These operational problems are discussed as well as an estimate of anode corrosion rates based on metal impurity levels in the aluminum metal pad.
Authors: Alcorn, T. R., Tabereaux, A. T., Richards, N. E. (Reynolds Metals Co., Muscle Shoals, AL (United States). Mfg. Technology Lab.), Windisch, C. F. Jr., Strachan, D. M. (Pacific Northwest Lab., Richland, WA (United States)), Gregg, J. S., Frederick, M. S. (ELTECH Research Corp., Fairport Harbor, OH (United States))
Institution: Pacific Northwest National Laboratory
Language: English
Subfield: Electrochemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
Funder: U.S. Department of Energy
OpenAlex ID: W1480705244