退火处理对PZT-5H铁电陶瓷性能的影响

Effect of anneal treatment on properties of PZT-5H ferroelectric ceramic

研究了退火处理对PZT-5H陶瓷铁电、压电性能以及抗老化和抗电疲劳性能的影响。结果表明，250℃退火处理可以有效地提高PZT-5H铁电陶瓷的饱和和剩余极化强度、压电常数和抗老化性、抗电疲劳性性能。分析表明，PZT-5铁电陶瓷性能的改善可能与热处理改变晶粒微区状态和消除内应力等因素有关。

This paper takes a research on effect of anneal treatment on ferroelectric piezoelectric anti-aging and anti-fatigue of PZT-5H ferroelectric ceramics. The test result indicate that 250℃ anneal treatment increased saturated polarization remanent polarization piezoelectric constant anti-aging and anti-fatigue of PZT-5H ferroelectric ceramics. The analysis showed that property improvement of PZT-5H ferroelectric ceramics effects of changing grain microstructure and eliminating inner pressure on anneal treatment.