Co<sub>1−<i>x</i></sub>Mg<sub><i>x</i></sub>MoO<sub>4</sub> compounds for pressure indicators - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue ACS Applied Materials & Interfaces Année : 2011

Co1−xMgxMoO4 compounds for pressure indicators

Résumé

Two Co1−xMgxMoO4 oxide compositions (x = 0 and x =0.4) were investigated as potential pressure indicators. The first order phase half-transition induced by pressure application from the β to the α form, i.e. from the high temperature/low pressure form to the high pressure/low temperature form, was studied thanks to the powder diffuse reflection (color) evolution versus the applied pressure. Three key parameters were analyzed: (i) the magnesium content, (ii) the powder grain sizes, (iii) the pressure application mode (uniaxial or isostatical). It was shown these three parameters allow tuning the transition pressure in a wide range from few bars to few kbars.

Domaines

Matériaux
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Dates et versions

hal-00606550 , version 1 (06-07-2011)

Identifiants

Citer

L. Righetti, Lionel Robertson, Alain Largeteau, Gerard L. Vignoles, Alain Demourgues, et al.. Co1−xMgxMoO4 compounds for pressure indicators. ACS Applied Materials & Interfaces, 2011, 3 (4), pp.1319-1324. ⟨10.1021/am2001218⟩. ⟨hal-00606550⟩
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