Stress-induced structural changes in La-doped BiFeO3–PbTiO3 high-temperature piezoceramics

Domain switching energies: Mechanical versus electrical loading in La-doped bismuth ferrite–lead titanate

“…27 Details of the powder preparation and sintering procedures can be found in detail elsewhere. 27,29,34 As an effect of the lanthanum doping it was possible to tune the tetragonality from 1.10 to 1.01, 27 which was accompanied by a reduced Curie temperature. 26 The Curie temperature was found to decrease from 632 C in the undoped material to 189 C in the material doped with 30 mol.…”

“…34 For electrical and XRD measurements, disks with a thickness of $0.7 mm were cut from sintered specimens in order to remove the surface layer. 29 To eliminate possible grinding-induced stresses the samples were annealed at 650 C for 12 min followed by cooling with a rate of 50 C/h.…”

Nonlinear stress-strain behavior and stress-induced phase transitions in soft Pb(Zr1−xTix)OSeo1, Franzbach2, Koruza3 et al. 2013Phys. Rev. BSelf Cite496261View full textAdd to dashboardCite

“…There have been numerous experimental investigations on the nonlinear ferroelastic stress-strain behavior of PZT-based ceramics, [5][6][7][8][9][10] in addition to other ferroelastic ceramics. [11][12][13][14] It has been demonstrated that the ferroelastic behavior of PZT is influenced by the composition, dopant type and concentration, and temperature. Schäufele and Härdtl 8 presented the stress-strain behavior of hard and soft PZT with various concentrations of PbTiO 3 .…”

Piezoelectric materials for high temperature transducers and actuators

“…readily, allowing ionic conduction to dominate particularly at elevated temperatures (up to 400°C) [42,43], but the high Curie point and perovskite structure offers another popular end member for piezoelectric solid solutions. In fact bismuth based perovskites are some of the most popular materials for high temperature piezoelectric applications [44][45][46][47][48][49][50][51][52][53][54][55][56][57] …”