Enhanced piezoelectric performance of (0.98-x)Bi(Sc3/4In1/4)O3-xPbTiO3-0.02Pb(Zn1/3Nb2/3)O3 ternary high temperature piezoelectric ceramics

Abstract

(0.98-x)Bi(Sc3/4In1/4)O3-xPbTiO3-0.02Pb(Zn1/3Nb2/3)O3 (BSI-PT-PZN) high temperature piezoelectric ceramics were prepared by traditional solid-state reaction method. Combining X-ray diffraction results with piezoelectric data, it was found that the morphotropic phase boundary (MPB) occurred at x = 0.575. The piezoelectric constant d33, curie temperature Tc, and electromechanical coupling factor kp of BIS-PT-PZN ceramics with MPB composition were 427 pC/N, 412 °C, and 0.51, respectively. Furthermore, the strain of BIS-PT-PZN ceramics reached up to 0.25% under the electric field of 40 kV/cm. Temperature-dependent electromechanical coupling coefficient for MPB composition was stable from room temperature up to 350 °C. The piezoelectric properties of BIS-PT-PZN ceramics were comparable to that of 0.36BiScO3-0.64PbTiO3 (BS-PT) ceramics, and the piezoelectric constant d33 of BIS-PT-PZN ceramics was about twice that of our previous reported 0.4Bi(Sc3/4In1/4)O3-0.6PbTiO3 (BSI-PT) ceramics. The reduction in the expensive Sc2O3 content and comparable piezoelectric properties with BS-PT ceramics indicated that BIS-PT-PZN ceramics were promising for commercial applications as high temperature actuators and sensors.

Enhanced Ferroelectric Phase Stability and High Temperature Piezoelectricity in PN Ceramics via Multisite Co‐Doping

“…Piezoelectric ceramics with a Curie temperature ( T c ) higher than that of the conventional PZT have recently received a great deal of attention for application in sensors and actuators working at elevated temperatures, particularly, for aerospace and automotive industries . PbNb 2 O 6 (PN) is one of the most promising materials for piezoelectric devices working at elevated temperatures due to its much higher Curie temperature ( T c ≈ 570°C) than that of the conventional Pb(Zr,Ti)O 3 .…”

Investigation on Resonant Vibration Performances of Fe‐Doped BiScO3–PbTiO3 Ceramics in High‐Temperature Environment

“…(b). These results show that Fe‐doped 0.367BS–0.633PTF ceramics have potential applications in HT power devices because of their increased Curie temperatures as well as their relative high permittivity and piezoelectricity values …”

Review on high temperature piezoelectric ceramics and actuators based on BiScO3–PbTiO3 solid solutions

“…32 Figures 5(a) and 5(b) display the vibration velocity v o (rms value) as a function of the electric field (rms value) and temperature rise as a function of vibration velocity of Mnmodified BS-PT ceramics, respectively. 37 It is observed that the vibration velocity increases with both the electric field and Mn content. For the compositions with 3 and 4 mol% Mn content, the vibration velocity of Mn-modified BS-PT ceramics increases rapidly with the electric field initially, and then become nearly saturated with further increasing electric field.…”

“…Very recently, the piezoelectric parameters of BS-PT ceramics used for the design of actuators have been characterized, and several kinds of HT piezoelectric actuators with new working principle have been proposed in our group. [32][33][34][35][36][37] It has been found that these piezoelectric actuators work stably at the temperature as high as 200 C. In this paper, recent progress in HT piezoelectric ceramics and actuators based on BS-PT solid solutions are summarized.…”