Comparison of thermal stability in MAX211 and 312 phases
The susceptibility of four MAX phases (Ti2AlC, Cr2AlC, Ti3AlC2, and Ti3SiC2) to high-temperature thermal dissociation in vacuum has been investigated using in-situ neutron diffraction. In high vacuum, these phases decomposed above 1400°C through the sublimation of M and A elements, forming a surface...
| Main Authors: | , , , , , , |
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| Format: | Conference Paper |
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IOP Publishing
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/15298 |
| _version_ | 1848748855445684224 |
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| author | Pang, Wei Kong Low, It-Meng O'Connor, Brian Studer, A. Peterson, V. Sun, Z. Palmquist, J-P. |
| author2 | N/A |
| author_facet | N/A Pang, Wei Kong Low, It-Meng O'Connor, Brian Studer, A. Peterson, V. Sun, Z. Palmquist, J-P. |
| author_sort | Pang, Wei Kong |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The susceptibility of four MAX phases (Ti2AlC, Cr2AlC, Ti3AlC2, and Ti3SiC2) to high-temperature thermal dissociation in vacuum has been investigated using in-situ neutron diffraction. In high vacuum, these phases decomposed above 1400°C through the sublimation of M and A elements, forming a surface coating of MC. The apparent activation energies for the decomposition of sintered Ti3SiC2, Ti3AlC2, and Ti2AlC were determined to be 179.3, -71.9, and 85.7 kJ mol−1, respectively. The spontaneous release of Ti2AlC and TiC from de-intercalation during decomposition of Ti3AlC2 resulted in a negative activation energy. |
| first_indexed | 2025-11-14T07:11:40Z |
| format | Conference Paper |
| id | curtin-20.500.11937-15298 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:11:40Z |
| publishDate | 2010 |
| publisher | IOP Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-152982017-09-13T15:57:55Z Comparison of thermal stability in MAX211 and 312 phases Pang, Wei Kong Low, It-Meng O'Connor, Brian Studer, A. Peterson, V. Sun, Z. Palmquist, J-P. N/A The susceptibility of four MAX phases (Ti2AlC, Cr2AlC, Ti3AlC2, and Ti3SiC2) to high-temperature thermal dissociation in vacuum has been investigated using in-situ neutron diffraction. In high vacuum, these phases decomposed above 1400°C through the sublimation of M and A elements, forming a surface coating of MC. The apparent activation energies for the decomposition of sintered Ti3SiC2, Ti3AlC2, and Ti2AlC were determined to be 179.3, -71.9, and 85.7 kJ mol−1, respectively. The spontaneous release of Ti2AlC and TiC from de-intercalation during decomposition of Ti3AlC2 resulted in a negative activation energy. 2010 Conference Paper http://hdl.handle.net/20.500.11937/15298 10.1088/1742-6596/251/1/012025 IOP Publishing fulltext |
| spellingShingle | Pang, Wei Kong Low, It-Meng O'Connor, Brian Studer, A. Peterson, V. Sun, Z. Palmquist, J-P. Comparison of thermal stability in MAX211 and 312 phases |
| title | Comparison of thermal stability in MAX211 and 312 phases |
| title_full | Comparison of thermal stability in MAX211 and 312 phases |
| title_fullStr | Comparison of thermal stability in MAX211 and 312 phases |
| title_full_unstemmed | Comparison of thermal stability in MAX211 and 312 phases |
| title_short | Comparison of thermal stability in MAX211 and 312 phases |
| title_sort | comparison of thermal stability in max211 and 312 phases |
| url | http://hdl.handle.net/20.500.11937/15298 |