Journal
THIN SOLID FILMS
Volume 503, Issue 1-2, Pages 45-54Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2005.11.112
Keywords
aluminum oxide; field emission microscopy; X-ray diffraction; ultracentrifugation
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In an attempt to grow low defect, dense crystalline aluminum hydrous oxide [AIO(OH)] films with better dielectric properties, hydration experiments oil a high purity, high cubicity aluminum foil were conducted in deionized water at 85 degrees C under high gravity conditions, Fields from 100 up to 14, 100 g and reaction times from 1 min LIP to 6 h were used. The films obtained were examined by field emission-scanning electron microscopy and X-ray diffraction. Hydration for up to 30 min using g-forces up to 3000 g showed the presence of only one crystalline phase with particle size 20-30 nm identified as pseudo-boehmite. A second phase, bayerite, was found to be growing from the pseudo-boehmite film at times greater than 30 min using fields above 5000 g. (c) 2005 Elsevier B.V. All rights reserved.
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