PHYSICAL MODEL FOR BREAKDOWN STRUCTURES IN SOLID DIELECTRICS

Authors
DISSADO LA SWEENEY PJJ
Citation
La. Dissado et Pjj. Sweeney, PHYSICAL MODEL FOR BREAKDOWN STRUCTURES IN SOLID DIELECTRICS, Physical review. B, Condensed matter, 48(22), 1993, pp. 16261-16268
Citations number
36
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
48
Issue
22
Year of publication
1993
Pages
16261 - 16268
Database
ISI
SICI code
0163-1829(1993)48:22<16261:PMFBSI>2.0.ZU;2-K
Abstract
A quantitative physical model is presented for the breakdown of solids by void or channel discharges. It is found that fractal treelike stru ctures only occur when the ''fields'' at the growth tips are allowed t o fluctuate about their Laplace values. By treating the local-field en hancement factor as a white noise produced by the breakdown mechanism itself, it is shown that the amount of branching depends only on the r ange of fluctuations allowed.