Thermomechanical properties of materials

Thermomechanical analysis provides valuable information on the dimensional properties of a wide range of materials. Used either alone or in conjunction with other thermal analysis, provides fundamental information that is difficult or even impossible to obtain by other analytical techniques. By the combination of thermal and mechanical experiments properties as heat capacities, thermal conductivities, phase transitions, magnetic order, elastic modulus, yield constant, or elasticity properties can be obtained. Two examples are given below related to some results of the obtained experiment by thermomechanical properties:

• Differential Scanning Calorimeter: (1) phase transitions and magnetic order in Ni-Mn-In-Co shape memory alloy obtained.
• Mechanical tests: (2) evaluation of the variation of the electric impedance in a magnetoelastic sensor (soft magnetic amorphous ribbon) as a function of the induced deformation, ε, at different temperatures.

(1) Phase transitions and magnetic order in Ni-Mn-In-Co shape memory alloy.

(2) Relative variation of the electric impedance, ΔZ/Z experienced by soft magnetic ribbon-based magnetoelastic sensor as a function of the induced deformation, ε, at different temperatures.

Contact: José Ignacio Pérez de Landazábal Berganzo