Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1475550 | Journal of the European Ceramic Society | 2013 | 7 Pages |
Abstract
Ba β-alumina films were prepared by laser chemical vapor deposition. Mostly single-phase Ba β-alumina films were obtained at 1125–1200 K and for an Al/Ba molar ratio of 12.4–16.6. BaAl2O4 and α-Al2O3 were codeposited with Ba β-alumina under Ba- and Al-rich conditions, respectively. The Ba β-alumina films consisted of hexagonal grains, and the (1 1 0)-oriented Ba β-alumina films had a fin-like columnar structure. The highest deposition rate reached 120 μm h−1 at around 1200 K. A thin layer of Ba-rich superstructure was formed on the surface of the (1 1 0)-oriented columnar grains.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Akihiko Ito, Yu You, Hirokazu Katsui, Takashi Goto,