The characteristics of electrolytic capacitors are determined primarily by the nature of the dielectric oxide film. The nature of this film and the factors which influence its physical and chemical characteristics are discussed. Electron photomicrographs of the electrolytic oxide film on aluminum, as well as X-ray diffraction and direct electrical measurements of the dry oxide film, reveal that it is crystalline gamma-A1
Published in:
Component Parts, IRE Transactions on
(Volume:4
,
Issue:
3
)
Date of Publication: Sep 1957