Abstract
Acoustic emission (AE) spectroscopy without frequency filtering (∼broadband AE) and moderate time integration is shown to be sensitive enough to allow the investigation of subtle nano-structural changes in ferroelectric BaTiO3 and ferroelastic Pb3(PO4)2. AE signals during weak phase transitions are compatible with avalanche statistics as observed previously in large-strain systems. While the data are too sparse to determine avalanche exponents, they are well suited to determine other thermodynamic parameters such as transition temperatures and critical stresses.
Original language | English |
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Article number | 152903 |
Journal | Applied Physics Letters |
Volume | 106 |
Issue number | 15 |
DOIs | |
State | Published - 13 Apr 2015 |
Bibliographical note
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