摘要
K0.5Bi0.5TiO3(KBT)nanocrystalline particles were hydrothermally synthesized from Bi(NO3)3·5H2O, TiO2 and KOH. The crystal phase, chemical composition and microstructure were characterized by XRD, XRF, Raman scattering spectroscopy and TEM. The results indicated that the products were pure perovskite structured K0.5Bi0.5TiO3 with chemical stoichiometry and perovskite structure. The TEM observation revealed that the particles possessed a feature of cubic shape and a nano-scale of about 40 nm. The KBT ceramics sintered at 1 040 ℃ from hydrothermal powders show higher density and better electric properties than that prepared by a solid-state reaction method.
K0.5Bi0.5TiO3（KBT）nanocrystalline particles were hydrothermally synthesized from Bi（NO3）3·5H2O, TiO2 and KOH. The crystal phase, chemical composition and microstructure were characterized by XRD, XRF, Raman scattering spectroscopy and TEM. The results indicated that the products were pure perovskite structured K0.5Bi0.5TiO3 with chemical stoichiometry and perovskite structure. The TEM observation revealed that the particles possessed a feature of cubic shape and a nano-scale of about 40 nm. The KBT ceramics sintered at 1040 ℃ from hydrothermal powders show higher density and better electric properties than that prepared by a solid-state reaction method.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2006年第3期563-566,共4页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金资助项目(No.60576012)
北京市"拔尖创新人才选拔计划"资助项目。
关键词
水热法
钛酸铋钾
无铅压电陶瓷
hydrothermal method
K0.5Bi0.5TiO3
lead-free piezoelectric ceramic
