Study on Temperature Stability of Hardness BSPT-Based High-Temperature Piezoelectric Ceramics
The 0.15BiScO3-0.85(Pb0.88Bi0.08)(Ti0.97Mn0.03)O3(BSPT-Mn)high-temperature piezoelectric ce-ramics were prepared by traditional solid-state method in the sintering range of 1 125-1 175℃.All samples are pure phase,and the distribution of grain sizes follows the normal distribution pattern.The dopant elements are uni-form and no significant enrichment phenomenon is observed.The results show that the BSPT-Mn high-temperature piezoelectric ceramic prepared by sintering at 1 150℃ achieved a maximum mechanical quality factor of 1 500.3,and exhibited good piezoelectric properties with dielectric constant d33 of 289.8 pC/N at a working temperature of 484.4.
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