ISSN:
1573-4889
Keywords:
oxidation
;
electrons
;
electrolyte
;
ionic conduction
;
electric field
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The imposition of a dc voltage across an oxide-ion-conducting solid electrolyte, upon which a gradient in the chemical potential of neutral oxygen (O, O2) is maintained, causes coupled gradients in the electrochemical potentials of oxygen ions and electrons. The concept of balancing these gradients to provide oxidation protection at high temperatures is discussed. Experimental results show a significant reduction in the oxidation of a zircaloy substrate under an applied electric field near the open-circuit potential. The current densities required are small enough to allow the use of electrically-conducting-ceramic electrodes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00666915
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