Wide-bandwidth immersion ultrasound transducer made of Mn:PIMNT single crystal/epoxy 1–3 composite

Two orientation effects and large anisotropy of parameters in piezo-active 2–1–2 composites based on [0 1 1]-poled crystals

“…This high performance is useful in a stress-driven harvester exploiting a transverse oscillation mode. A large level of the piezoelectric coefficients [10][11][12]. Of interest is also a dual-mode piezoelectric vibration power generation device [44] where the longitudinal and transverse modes are put into effect.…”

“…Advanced composites based on ferroelectric domainengineered single crystals (SCs) with important physical properties are of significant interest not only in an academic sense but also in a variety of transducer applications. Numerous two-component piezo-active SC-based composites, which were manufactured and studied recently, are characterised by either 2-2 [1][2][3] or 1-3 [4][5][6][7][8][9][10][11] connectivity written in terms of [12]. The connectivity indices such as 2-2 or 1-3 indicate [12,13] the number of axes of a rectangular coordinate system along which the first and second components of the composite are continuously distributed, respectively.…”

“…The aforementioned and other parameters enable one to use 2-2 composites, for instance, in hydrophone [2] and acoustic transducer [3] applications. The 1-3 composites studied recently are effective in various transducer [6,7,10,11] and energy-harvesting [9] applications, as elements of medical [4] and bio-electronic [9] devices. The presence of high-performance SC as the main piezoelectric component with high properties becomes a stimulus to study the 'composition-structure-property' relationships [13] that can facilitate specific piezotechnical applications of novel composites.…”

“…The presence of high-performance SC as the main piezoelectric component with high properties becomes a stimulus to study the 'composition-structure-property' relationships [13] that can facilitate specific piezotechnical applications of novel composites. As follows from recent papers on piezo-active composites, their main components are often chosen among perovskite-type solid-solution compositions, for instance, lead-containing (1−x)Pb(Mg 1/3 Nb 2/3 )O 3 −xPbTiO 3 (PMN-xPT) [5,6,9,10,14], Pb(In 1/2 Nb 1/2 )O 3 -Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 [1,7,11] or lead-free BaTiO 3 -CaTiO 3 -BaZrO 3 [8].…”