Reduced dielectric loss and strain hysteresis in (0.97−x)BiScO3–xPbTiO3–0.03Pb(Mn1/3Nb2/3)O3 piezoelectric ceramics

Enhanced mechanical quality factor of BiScO3–PbTiO3piezoelectric ceramics using glass composition

“…For example, the piezoelectric performance of (0.97- x )BiScO 3 – x PbTiO 3 –0.03Pb(Mn 1/3 Nb 2/3 )O 3 ceramics deteriorated severely ( d 33 < 300 pC N −1 ). 24 The Curie temperature of 0.03Pb(Mn 1/3 Sb 2/3 )O 3 –0.33BS–0.64PT and BiScO 3 –PbTiO 3 –Pb(Yb 1/2 Nb 1/2 )O 3 ceramics is less than 400 °C. 23,26 Mn and Fe co-modified BS–PT ceramics show both a lower d 33 of 235 pC N −1 and dielectric constant ε r of 815 compared with pure BS–PT ceramics.…”

“…Previously, a great deal of work has been done to increase the Q m of BS–PT ceramics through chemical methods, such as the addition of Mn, Fe, Pb(Mn 1/3 Nb 2/3 )O 3 , Pb(Mn 1/3 Sb 2/3 )O 3 . 4,21–25 The mechanical quality factor can be enhanced by chemical methods, while the piezoelectric performance and Curie temperature are often decreased. For example, the piezoelectric performance of (0.97- x )BiScO 3 – x PbTiO 3 –0.03Pb(Mn 1/3 Nb 2/3 )O 3 ceramics deteriorated severely ( d 33 < 300 pC N −1 ).…”

Enhanced Actuation Performance and Reduced Heat Generation in Shear-Bending Mode Actuator at High Temperature

“…In this work, the actuation performance, strain hysteresis and heat generation of the shearbending mode actuators based on "soft" (BiScO3-PbTiO3 near MPB, hereafter "soft" BS-PT) and "hard" ceramics (3 mol% Pb(Mn1/3Nb2/3)O3 modified BiScO3-PbTiO3, hereafter "hard" BS-PT) were investigated at different temperatures, magnitudes of the applied electric fields and frequencies. The dielectric and piezoelectric properties of "soft" and "hard" BS-PT ceramics were given in Table Ι [15][16]. The piezoelectric properties of "hard" BS-PT ceramics are inferior to those of "soft" ones, but the dielectric loss is much smaller.…”

Novel techniques for laser doppler vibrometry for vibrating shiny and mirror surfaces

“…Below is the product information of the dataacquisition (DAQ) unit NI6251 USB BNC (from National Instruments) used in the LDV system [190]: Finally, the LDV system used inhouse data acquisition software (developed by the author) called QuickSA (version 2.0) that supports the data collection and its realtime plot. This software has also been used by other researcher groups [45,[191][192][193].…”