Abstract
Abstract A new apparatus for simultaneous measurements of acoustic emission (AE) and differential thermal analysis (DTA) is described. Two fused silica cells are used as the sample and reference holders and a fused silica rod, fixed at the bottom of the sample holder, acts as the waveguide for AE signals emitted in the sample. A 140 KHz resonance frequency sensor is attached at the end of the rod to detect the AE signals which are converted by an AE tester to three parameters, the wave form, the event count rate, and the cumulative count. The technique has been successfully utilized to study the dehydration, phase transition, and decomposition of NaN3, KNO3, KClO4, CaCrO4·0.1H2O, and MgCl2· 6H2O, for which the interesting results are reported.
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