An experimental set-up for thermal analysis and DSC: its application to the hysteresis cycles in shape memory alloys

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Abstract
The authors present an improved experimental set-up for thermal analysis and DSC, suitable for studying recoverability and stochasticity in shape memory alloys. Its main features are a temperature working domain of 225 to 350 K, an experimental temperature resolution close to 0.003 K, a calorimetric noise and drift less than 1 mu V (3 mu W at room temperature) and highly sophisticated temperature programming via harmonic analysis and instantaneous control. The experimental system, controlled by a personal computer, determines either the local (single interface movements) or the global hysteresis cycle in shape memory alloys.