Hydrothermal-Electrochemical Formation of BaTiO, Films: Electrochemical Characterization of the Early Stages of Growth
Author
dc.contributor.author
Vargas Valero, Tomás
Author
dc.contributor.author
Díaz Toledo, Hugo
es_CL
Author
dc.contributor.author
Silva, Carmen I.
es_CL
Author
dc.contributor.author
Fuenzalida, Víctor M.
es_CL
Admission date
dc.date.accessioned
2013-12-31T14:05:31Z
Available date
dc.date.available
2013-12-31T14:05:31Z
Publication date
dc.date.issued
1997-01
Cita de ítem
dc.identifier.citation
Journal of the American Ceramic Society, Vol. 80, No. 1, january 1997, pp. 213-218
en_US
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/125924
Abstract
dc.description.abstract
The formation mechanism of BaTiO, films produced by
a hydrothermal-electrochemical method was characterized
using electrochemical techniques. Experiments were conducted
in a three-electrode electrochemical cell, with titanium
foil as the working electrode and Ag/AgCJ as the
reference electrode, in a 0.2544 Ba(OH), solution at 150°C.
Hvdrothermal-electrochemical BaTiO, film formation is
initially controlled bv charge transfer related to the rate
of electrochemical oxidation of titanium. The process later
becomes mass transfer controlled, presumablv related to
the diffusion of Ba’+ ions across the built-up Ba?XI, Mm. A
relation between the mechanism of formation of BaTiO,
films under both the hydrothermal-electrochemical and the
pure hydrothermal methods was established.