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Journal article
A Critical Review of the Oxidation of Ti2AlC, Ti3AlC2 and Cr2AlC in Air
Materials research letters, v 1(3), pp 115-125
01 Jan 2013
Abstract
Of all the M(n+1)AX(n) phases, the most resistant to oxidation in air in the 900-1,400 degrees C temperature range are Ti2AlC, Ti3AlC2 and Cr2AlC. A literature review, however, shows that while many claim the oxidation kinetics to be parabolic, others claim them to be cubic. Whether the kinetics are parabolic or better is of vital practical importance. By carefully re-plotting the results of others and carrying out one oxidation run for approximate to 3,000 h at 1,200 degrees C on a Ti2AlC sample, we conclude that the oxidation kinetics are better described by cubic kinetics and that even that conclusion is an approximation. Lastly, we present compelling evidence that the rate-limiting step during the oxidation of Ti2AlC is diffusion down the alumina scale grain boundaries.
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Details
- Title
- A Critical Review of the Oxidation of Ti2AlC, Ti3AlC2 and Cr2AlC in Air
- Creators
- Darin J. Tallman - Drexel UniversityBabak Anasori - Drexel UniversityMichel W. Barsoum - Drexel University
- Publication Details
- Materials research letters, v 1(3), pp 115-125
- Publisher
- Taylor & Francis
- Number of pages
- 11
- Grant note
- DOE's Office of Nuclear Energy University Program (DOE/NEUP); United States Department of Energy (DOE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000209767500001
- Scopus ID
- 2-s2.0-84901978526
- Other Identifier
- 991019167963604721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Materials Science, Multidisciplinary
- Metallurgy & Metallurgical Engineering