Abstract
Samples of ferroelectric functional materials based on lead zirconate titanate with the chemical formula PbTiO3-PbZrO3-PbNb2/3Zn1/3O3-PbNb2/3Mg1/3O3 and triglycine sulfate (NH2CH2COOH)3•H2SO4 were manufactured and characterized. The dielectric spectroscopy and differential scanning calorimetry confirmed the presence of phase transitions in them, and the characteristic transition temperatures were determined. Thermomechanical analysis method has been used to study thermally induced deformations in them, near phase transitions. The shape memory effect (SME) and electrocaloric effect in macro samples were studied. Methods of studying the SME on the microscale of sample sizes have been worked out. The process of formation of microstructures in these materials in the form of «micropillars» («micropillars») by selective ion etching with a focused ion beam is investigated. The process of deformation of «micro-pillars» with a diameter from 120 nm to 1 micron from ferroelectric materials using a microneedle mounted on a Kleidiek nanomanipulator in the vacuum chamber of a two-beam scanning microscope CrossBeam 1540 EsB has been studied.
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