理化检验-物理分册2024，Vol.60Issue(5)：1-3,3.DOI:10.11973/lhjy-wl202405001
低温环境下PbTiO3钙钛矿晶粒的演化过程
Evolution process of PbTiO3 perovskite grains under low temperature environment
摘要
Abstract
The crystal structure and grain evolution process of PbTiO3 perovskite under low temperature conditions were studied using transmission electron microscopy.The results show that under low temperature conditions,there was no significant phase transition in PbTiO3 perovskite.Under electron beam irradiation conditions,PbTiO3 crystals exhibited fine-grained phenomena,indicated that the electron beam had an inducing effect on their structural changes.At room temperature and low temperature,PbTiO3 crystals did not produce dislocation defects,and the low temperature environment slowed down the grain refinement process.The effect of electron irradiation increased the surface energy of materials,led to a decrease in grain size and resulted in the phenomenon of fine crystallization.关键词
PbTiO3钙钛矿/透射电子显微镜/细晶化现象/相变/表面能Key words
PbTiO3 perovskite/transmission electron microscope/fine crystallization phenomenon/phase transition/surface energy分类
通用工业技术引用本文复制引用
于海涛,陈国新,吴海辰,梁芮,卢焕明..低温环境下PbTiO3钙钛矿晶粒的演化过程[J].理化检验-物理分册,2024,60(5):1-3,3.基金项目
浙江省基础公益研究计划项目(LGC21E020002) （LGC21E020002）
