ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract In the transition zone between phases of different conduction types, the electrical current is not only unevenly distributed, but also, in many cases, local or temporal instabilities occur. Most of these effects have already been observed, but until now, no theoretical treatment has been published. As a straightforward extension of the linear mathematical treatment of the current distribution in porous electrodes1, an explanation of two classes of purely electrical instabilities can be given. Beyond these purely electrical instabilities, a number of more complicated cases has to be considered. These are local instabilities caused by overlapping singularities, e.g. spots of minor density or conductivity, local and temporal instabilities caused by thermal breakthroughs and instabilities caused by hydrodynamical eddies. Moreover the current distribution shows local and temporal fluctuations as the result of the granular structure of the transition zone.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01394695
