Cellular porous anodic alumina grown in neutral organic electrolyte. 1. Structure, composition, and properties of the films

Journal Article · Sat Apr 01 00:00:00 EST 2000 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.1393365· OSTI ID:20075614

Liu, Y; Alwitt, R S; Shimizu, K

Anodic alumina films with cellular porous structure grow in neutral organic electrolytes with low water content and containing ethylene glycol and a large dicarboxylic acid. An Al carboxylate precipitates in the pore and is extruded from the coating. The porous structure develops even though the current efficiency for film formation is near 95%. The coating matrix contains substantial organic material, 15 wt % by thermal analysis. It is an oxide/organic composite with higher field strength and lower dielectric constant than pure anodic alumina.

• Research Organization: Boundary Technologies, Inc., Buffalo Grove, IL (US)
• OSTI ID: 20075614
• Journal Information: Journal of the Electrochemical Society, Vol. 147, Issue 4; Other Information: PBD: Apr 2000; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
FILMS
ALUMINIUM
ELECTROLYTES
PORE STRUCTURE
GLYCOLS
DICARBOXYLIC ACIDS