Achieving both high d 33 and high T C in low-temperature sintering Pb(Ni 1/3 Nb 2/3 )O 3 –Pb(Mg 1/2 W 1/2 )O 3 –Pb(Zr 0.5 Ti 0.5 )O 3 ceramics using Li 2 CO 3
Source abstract
Abstract
Abstract Piezoelectric composition ceramics 0.08Pb(Ni1/3Nb2/3)O3–0.02Pb(Mg1/2W1/2)O3–0.90Pb(Zr0.5Ti0.5)O3 with sintering aids of 0.30 wt% CaCO3 and 0.05–0.40 wt% Li2CO3 were sintered at 900 °C in order to develop low-temperature sintering ceramics for piezoelectric multilayer actuators. The influence of Li2CO3 content on the electrical properties of the ceramics was systematically evaluated. The sintering aids facilitate the sinterability due to the generation of a liquid phase of compound Li2PbO3 formed by reaction between Li2CO3 and PbO. The ceramics sintered at 900 °C for 4 h with 0.20 wt% Li2CO3 sintering aids have optimal electrical properties (large d33 and relatively high TC) at room temperature: d33 = 599 pC/N, kp = 0.698, Qm = 50, TC = 296 °C, er = 2595 (1 kHz), tgδ = 0.0174 (1 kHz), Pr = 38.25 μC/cm2 (20 kHz), and Ec = 10.03 kV/cm (20 kHz) . The mechanisms of low-temperature sintering and Li ions–properties relationships also were discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Acoustic Wave Resonator Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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