Please use this identifier to cite or link to this item:
https://apo.ansto.gov.au/dspace/handle/10238/2915
Title: | In situ diffraction study of thermal decomposition in Maxthal Ti2AlC |
Authors: | Pang, WK Low, IM O'Connor, BH Peterson, VK Studer, AJ Palmquist, JP |
Keywords: | Ceramics Neutron diffraction Synchrotron radiation Phase transformations Titanium Aluminium |
Issue Date: | 5-Jan-2011 |
Publisher: | Elsevier |
Citation: | Pang, W. K., Low, I. M., O'Connor, B. H., Peterson, V. K., Studer, A. J., Palmquist, J. P. (2011). In situ diffraction study of thermal decomposition in Maxthal Ti2AlC. Journal of Alloys and Compounds, 509(1), 172-176. |
Abstract: | The thermal stability of Ti2AlC at elevated temperature (1000–1550°C) in vacuum has been investigated using in situ neutron diffraction. At temperatures above 1400°C, Ti2AlC became unstable and began to decompose via sublimation of Al, resulting in a porous surface layer of TiCx being formed. The apparent activation energy for Ti2AlC decomposition was determined to be 85.7 ± 2.6 kJ mol−1. The kinetics of isothermal phase decomposition was modelled using least-squares linear regression fitting and the Avrami equation. The corresponding least-squares regression exponent (R2) and Avrami constants (k and n) for isothermal decomposition were determined to be 0.89, 0.268 min−n and 0.1, respectively. © 2011, Elsevier Ltd. |
Gov't Doc #: | 3110 |
URI: | http://dx.doi.org/10.1016/j.jallcom.2010.09.019 http://apo.ansto.gov.au/dspace/handle/10238/2915 |
ISSN: | 0925-8388 |
Appears in Collections: | Journal Articles |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.