Diffraction Study of Self-Recovery in Decomposed Al2TiO5 During Vacuum Annealing
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Authors
Low, It-Meng (Jim)
Pang, W.
Date
2012Type
Conference Paper
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Low, I.M. and Pang, W.K. 2012. Diffraction Study of Self-Recovery in Decomposed Al2TiO5 During Vacuum Annealing, in S. Widjaja and D. Singh (ed), Proceedings of the 35th International Conference on Advanced Ceramics and Composites, Jan 23 2011, pp. 169-175. Daytona Beach, Florida: John Wiley & Sons.
Source Title
Proceedings of the 35th International Conference on Advanced Ceramics and Composites
Source Conference
35th International Conference on Advanced Ceramics and Composites
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School
Department of Imaging and Applied Physics
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Abstract
The ability of decomposed Al2TiO5 to undergo self-recovery or reformation during vacuum annealing was characterised by in-situ neutron diffraction. It is shown that the process of phase decomposition in Al2TiO5 was reversible and that reformation occurred readily when decomposed Al2TiO5 was re-heated above 1300°C. The kinetics of isothermal and temperature-dependent self-recovery was modelled using the Avrami equation. The influence of grain-size on the Avramic kinetics of self-recovery was also evident.
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