The mass transport mechanism during the hydrothermal‐electrochemical growth of polycrystalline thin films of ATiO3 (A = Ba, Sr) perovskite onto Ti electrodes in A(OH)2solutions has been studied by a tracer technique, using Ba and 18O atoms as respective tracers for A‐site and oxygen atoms in SrTiO3 host films. It was found that the ATiO3film grows at the film/electrode interface by transport of both A‐site and oxygen atoms from the solution to the interface. A‐site and oxygen atoms are considered to diffuse as constituents of solution species, such as A2+, OH‐, and H2O, through open short‐circuit paths existing at grain boundaries.
|Number of pages||11|
|Journal||Journal of the American Ceramic Society|
|Publication status||Published - 1995 Jun|
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Materials Chemistry