Title
Phase transformation of mechanically milled nano-sized gamma-alumina
Abbreviated Journal Title
J. Am. Ceram. Soc.
Keywords
TEMPERATURE; TRANSITION; BOEHMITE; AL2O3; Materials Science, Ceramics
Abstract
The phase transformation of mechanically milled nano-sized gamma-alumina particles was investigated. The structures and phase presentation of the powders before and after milling were characterized using X-ray diffraction, transmission electron microscopy, and photoluminescence measurement. The phase transformation kinetics was investigated using differential scanning calorimetry. It was found that significant amounts of defects were generated by milling. These defects dramatically lowered the temperatures and activation energies of the transformation by promoting the nucleation and diffusion. The accumulation of the defects appears to show a logarithmic dependence of milling time.
Journal Title
Journal of the American Ceramic Society
Volume
88
Issue/Number
9
Publication Date
1-1-2005
Document Type
Article
Language
English
First Page
2559
Last Page
2563
WOS Identifier
ISSN
0002-7820
Recommended Citation
"Phase transformation of mechanically milled nano-sized gamma-alumina" (2005). Faculty Bibliography 2000s. 5423.
https://stars.library.ucf.edu/facultybib2000/5423
Comments
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