Comparison of thermal stability in MAX 211 and 312 phases

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dc.contributor.authorPang, WKen_AU
dc.contributor.authorLow, IMen_AU
dc.contributor.authorO'Connor, BHen_AU
dc.contributor.authorStuder, AJen_AU
dc.contributor.authorPeterson, VKen_AU
dc.contributor.authorSun, ZMen_AU
dc.contributor.authorPalmquist, JPen_AU
dc.date.accessioned2011-09-20T04:06:26Zen_AU
dc.date.available2011-09-20T04:06:26Zen_AU
dc.date.issued2010-05-03en_AU
dc.date.statistics2011-09-15en_AU
dc.description.abstractThe susceptibility of four MAX phases (Ti 2 AlC, Cr 2 AlC, Ti 3 AlC 2 , and Ti 3 SiC 2 ) 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 Ti 3 SiC 2 , Ti 3 AlC 2 , and Ti 2 AlC were determined to be 179.3, -71.9, and 85.7 kJ mol −1 , respectively. The spontaneous release of Ti 2 AlC and TiC from de-intercalation during decomposition of Ti 3 AlC 2 resulted in a negative activation energy.© 2010, Insitute of Physicsen_AU
dc.identifier.articlenumber12025en_AU
dc.identifier.citationPang, W.K., Low I.M., O'Connor, B.H., Studer, A.J., Peterson, V.K., Sun, Z.M., Palmquist, J.P. (2010). Comparison of thermal stability in MAX 211 and 312 phases. Journal of Physics: Conference Series, International Conference on Neutron Scattering 2009, 3th–7th May 2009. Knoxville, Tennessee, USA, 251(1), Art. No. 012025. doi:10.1088/1742-6596/251/1/012025en_AU
dc.identifier.govdoc3463en_AU
dc.identifier.issn1742-6596en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleJournal of Physics: Conference Seriesen_AU
dc.identifier.pagination12025en_AU
dc.identifier.urihttp://dx.doi.org/10.1088/1742-6596/251/1/012025en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3753en_AU
dc.identifier.volume251en_AU
dc.language.isoenen_AU
dc.publisherInsitute of Physicsen_AU
dc.subjectTemperature range 0065-0273 Ken_AU
dc.subjectNeutron diffractionen_AU
dc.subjectPressure range micro paen_AU
dc.subjectSurface coatingen_AU
dc.subjectDecompositionen_AU
dc.subjectMagnetic susceptibilityen_AU
dc.titleComparison of thermal stability in MAX 211 and 312 phasesen_AU
dc.typeJournal Articleen_AU
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