Dynamic neutron diffraction study of thermal stability and self-recovery in aluminium titanate
Aluminium titanate (Al2TiO5) is an excellent refractory and thermal shock resistant material dueto its relatively low thermal expansion coefficient and high melting point. However, Al2TiO5 unstableand undergoes a eutectoid-like decomposition to a-Al2O3 and TiO2 (rutile) at the temperature range of90...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Conference Paper |
| Published: |
American Ceramic Society
2010
|
| Online Access: | http://hdl.handle.net/20.500.11937/19968 |
| _version_ | 1848750178862891008 |
|---|---|
| author | Low, It-Meng Oo, Zeya |
| author2 | Sanjay Mathur |
| author_facet | Sanjay Mathur Low, It-Meng Oo, Zeya |
| author_sort | Low, It-Meng |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Aluminium titanate (Al2TiO5) is an excellent refractory and thermal shock resistant material dueto its relatively low thermal expansion coefficient and high melting point. However, Al2TiO5 unstableand undergoes a eutectoid-like decomposition to a-Al2O3 and TiO2 (rutile) at the temperature range of900-1280C. In this paper, we describe the use of high-temperature neutron diffraction to study (a) thephenomenon of self-recovery in decomposed Al2TiO5, and (b) the role of grain size on the rate ofisothermal decomposition at 1100C. It is shown that the process of decomposition in Al2TiO5 isreversible whereby self-recovery occurs readily when decomposed Al2TiO5 is re-heated above 1300C,and the rate of phase decomposition increases as the grain size decreases. |
| first_indexed | 2025-11-14T07:32:42Z |
| format | Conference Paper |
| id | curtin-20.500.11937-19968 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:32:42Z |
| publishDate | 2010 |
| publisher | American Ceramic Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-199682023-01-13T07:56:30Z Dynamic neutron diffraction study of thermal stability and self-recovery in aluminium titanate Low, It-Meng Oo, Zeya Sanjay Mathur Tatsuki Ohji Aluminium titanate (Al2TiO5) is an excellent refractory and thermal shock resistant material dueto its relatively low thermal expansion coefficient and high melting point. However, Al2TiO5 unstableand undergoes a eutectoid-like decomposition to a-Al2O3 and TiO2 (rutile) at the temperature range of900-1280C. In this paper, we describe the use of high-temperature neutron diffraction to study (a) thephenomenon of self-recovery in decomposed Al2TiO5, and (b) the role of grain size on the rate ofisothermal decomposition at 1100C. It is shown that the process of decomposition in Al2TiO5 isreversible whereby self-recovery occurs readily when decomposed Al2TiO5 is re-heated above 1300C,and the rate of phase decomposition increases as the grain size decreases. 2010 Conference Paper http://hdl.handle.net/20.500.11937/19968 American Ceramic Society fulltext |
| spellingShingle | Low, It-Meng Oo, Zeya Dynamic neutron diffraction study of thermal stability and self-recovery in aluminium titanate |
| title | Dynamic neutron diffraction study of thermal stability and self-recovery in aluminium titanate |
| title_full | Dynamic neutron diffraction study of thermal stability and self-recovery in aluminium titanate |
| title_fullStr | Dynamic neutron diffraction study of thermal stability and self-recovery in aluminium titanate |
| title_full_unstemmed | Dynamic neutron diffraction study of thermal stability and self-recovery in aluminium titanate |
| title_short | Dynamic neutron diffraction study of thermal stability and self-recovery in aluminium titanate |
| title_sort | dynamic neutron diffraction study of thermal stability and self-recovery in aluminium titanate |
| url | http://hdl.handle.net/20.500.11937/19968 |