title: CoMoO4/CuMo0.9W0.1O4 mixture as an efficient piezochromic sensor to detect temperature/pressure shock parameters.
abstract: A mixture of two piezochromic compounds can be used as a universal shock detector, i.e., to determine the shock pressure without knowing a priori the temperature at which the shock occurred. For this purpose, both piezochromic compounds must exhibit different temperature influences in their transition-pressure values. This demonstration uses two piezochromic compounds (CoMoO4 and CuMoO4-type oxides) that exhibit a first-order phase transition between their two allotropic forms associated with a drastic color change. The colorimetric coordinates of the mixture indicate the pressure and temperature of a shock.
authors.affiliation: Institut de Chimie de la Matière Condensée de Bordeaux, 87 Avenue du Dr. Schweitzer, 33608 PESSAC Cedex, France.
authors.forename: Veronica
authors.initials: V
authors.lastname: Blanco-Gutierrez
authors.affiliation: Institut de Chimie de la Matière Condensée de Bordeaux, 87 Avenue du Dr. Schweitzer, 33608 PESSAC Cedex, France.
authors.forename: Lucile
authors.initials: L
authors.lastname: Cornu
authors.affiliation: Institut de Chimie de la Matière Condensée de Bordeaux, 87 Avenue du Dr. Schweitzer, 33608 PESSAC Cedex, France.
authors.forename: Alain
authors.initials: A
authors.lastname: Demourgues
authors.affiliation: Institut de Chimie de la Matière Condensée de Bordeaux, 87 Avenue du Dr. Schweitzer, 33608 PESSAC Cedex, France.
authors.forename: Manuel
authors.initials: M
authors.lastname: Gaudon
keywords: chromogenic; oxides; piezochromic; shock detector