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首页> 外文会议>2013 IEEE International Symposium on the Applications of Ferroelectric and Workshop on the Piezoresponse Force Microscopy >Synthesis of needle-like NaNbO3 particles by hydrothermal process
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Synthesis of needle-like NaNbO3 particles by hydrothermal process

机译：水热法合成针状NaNbO3颗粒

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摘要

In this study, sodium niobate powders were prepared by hydrothermal process for further use as template particles in the texturing of piezoelectric potassium sodium niobate fibers. At the end of the study, three different structures were obtained: Sodium hexaniobate particles with rod-like morphology at 120°C, particles with partially needle- like morphology at 130°C–140°C and SOMS particles with totally needle-like morphology at 150°C. Finally, sodium niobate particles with cubic morphology were obtained at 160°C and above. Rod-like and needle-like morphology was retained even after annealing at 400°C. SOMS particles were sintered at 1135°C for 1 hour and transmission electron microscopy study was carried out to investigate their morphological and structural changes explain after annealing.
机译：在这项研究中，通过水热法制备了铌酸钠粉末，以进一步用作压电铌酸钾钠纤维组织中的模板颗粒。在研究结束时，获得了三种不同的结构：在120°C时具有棒状形态的己二酸钠钠颗粒，在130°C–140°C时具有部分针状形态的颗粒以及具有完全针状形态的SOMS颗粒在150°C下。最后，在160℃以上获得了立方晶形的铌酸钠颗粒。棒状和针状形态甚至在400℃退火后也得以保留。将SOMS颗粒在1135°C下烧结1小时，并进行了透射电子显微镜研究，以研究其退火后的形貌和结构变化。

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