Phase transitions in Mn(Mo1−xWx)O4 oxides under the effect of high pressure and temperature
Langue
en
Article de revue
Ce document a été publié dans
physica status solidi (b). 2016, vol. 253, n° 10, p. 2043-2048
Wiley
Résumé en anglais
ABO4 compounds exhibit various phase transitions identified in the literature. The phase transitions between monoclinic α-C2/m and wolframite P2/c structures of Mn(Mo1−xWx)O4 compounds, which can be induced by pressure or ...Lire la suite >
ABO4 compounds exhibit various phase transitions identified in the literature. The phase transitions between monoclinic α-C2/m and wolframite P2/c structures of Mn(Mo1−xWx)O4 compounds, which can be induced by pressure or temperature, are studied on the basis of X-ray diffraction analyses. The large optical contrast associated with both these structures and Mo/W environments can be exploited to propose efficient piezochromic sensors (thanks to the monoclinic to wolframite transition vs. pressure) and thermal sensors (thanks to the reverse transformation), the thermochromic temperature being able to be tuned via the Mo/W ratio.< Réduire
Project ANR
Revêtements Piézochromes Réversibles pour la Détection d'Impacts sur Supports Composites
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