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Invar Like Behavior of the Cr2AlC MAX Phase at Low Temperature

Jaouen, Michel ; Chartier, Patrick ; Cabioc' H, Thierry ; Mauchamp, Vincent ; André, Gilles ; Viret, Michel

Journal of the American Ceramic Society, December 2013, Vol.96(12), pp.3872-3876 [Rivista Peer Reviewed]

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  • Titolo:
    Invar Like Behavior of the Cr2AlC MAX Phase at Low Temperature
  • Autore: Jaouen, Michel ; Chartier, Patrick ; Cabioc' H, Thierry ; Mauchamp, Vincent ; André, Gilles ; Viret, Michel
  • Descrizione: The structure of 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  ~ 73 ± 5 K, the undergoes significant distortions of the octahedron and triangular prisms units. Above 100 K, follows an usual thermal expansion.
  • Fa parte di: Journal of the American Ceramic Society, December 2013, Vol.96(12), pp.3872-3876
  • Soggetti: Superalloys ; Superconductors
  • Identificativo: ISSN: 0002-7820 ; E-ISSN: 1551-2916 ; DOI: 10.1111/jace.12635

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