熔盐用量对Bi_3NbTiO_9粉体合成的影响  

Influence of Molten Salt Amount on Synthesizing of Bi_3NbTiO_9 Powders

作　　者：李宝让[1] 曹斌[1] 

机构地区：[1]华北电力大学生物质发电成套设备国家工程实验室,北京102206

出　　处：《人工晶体学报》2010年第6期1479-1484,共6页Journal of Synthetic Crystals

基　　金：华北电力大学博士基金;教育部创新团队计划(PCSIRT0720);教育部"长江学者和创新团队发展计划"(IRT0720)资助项目

摘　　要：采用氯化钠作为熔盐,利用熔盐法合成B i3NbTiO9(BNTO)粉体,采用SEM和XRD研究了熔盐用量对粉体合成温度和粉体的形貌特征的影响。研究结果表明:熔盐用量对粉体合成温度以及形貌有很大影响。当熔盐和原料比例超过4∶1时,粉体颗粒尺寸明显增加,形貌呈现典型的四方片状,而且在相同条件下增大熔盐比例可以避免杂相生成。Bi3NbTiO9（BNTO）powders were prepared via molten salt method using NaCl as molten salt.The influence of salt amount on the synthesizing temperature and powders characterization were studied by SEM and XRD.The results show that the ratio of salt to the starting materials affected powders morphology and formation greatly.When the ratio was beyond 4∶1,pure BNTO without any other phase was formed with large particle size and processed typical quadrate-like shape.

关 键 词：氯化钠 熔盐用量 BNTO 熔盐法 

分 类 号：TB332[一般工业技术—材料科学与工程]