【摘要】 利用国际上近几年发展起来的扫描电子声显微镜技术，对ＢａＴｉＯ３铁电陶瓷材料及其单晶进行电子声成像实验。结果表明：利用扫描电子声显微镜技术在不对样品表面进行任何处理的情况下，可以直接对电畴结构进行观察。实验结果显示出扫描电子声显微成像技术在对铁电材料的电畴结构微观分析中的优越性，为在微观领域分析研究铁电材料的电畴结构提供了一种新的观察与分析手段。更多还原

【Abstract】 Direct observation of domain structure of ferroelectric ceramics and single crystal BaTiO 3 was made with a new microscopically imaging tool——scanning electron acoustic microscope(SEAM).The results show that the SEAM technique can be used directly to observe the domain structure of ferroelectric ceramics and single crystal materials without any treatment for test samples.The thermal wave coupling mechanism has no effect on the electron acoustic imaging of ferroelectric materials,while the change of electric constants in this materials has a certain effect.The experimental results also show that the SEAM technique has advantage over the other manners in observing domain structure of ferroelectrics.It offers a new method to observe and study domain structure in a micro scale.更多还原