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- Title
Invar Like Behavior of the Cr<sub>2</sub> AlC MAX Phase at Low Temperature.
- Authors
Jaouen, Michel; Chartier, Patrick; Cabioc'h, Thierry; Mauchamp, Vincent; André, Gilles; Viret, Michel; Zhou, Y.
- Abstract
The structure of Cr2 AlC has been studied using neutron scattering experiments performed in a temperature range running from room temperature down to 1.8 K. It is shown that the unit cell volume does not vary significantly below 80 K. This anomalous behavior, correlated with the existence of a weak ferromagnetic ordering revealed from superconducting quantum interference device experiments, is similar to that characteristic of Invar alloys. Just above the Curie temperature TC ~ 73 ± 5 K, the Cr2 AlC undergoes significant distortions of the octahedron and triangular prisms units. Above 100 K, Cr2 AlC follows an usual thermal expansion.
- Publication
Journal of the American Ceramic Society, 2013, Vol 96, Issue 12, p3872
- ISSN
0002-7820
- Publication type
Academic Journal
- DOI
10.1111/jace.12635