摘要
钛酸锶钡基(BST)陶瓷因其具有较高的峰值介电常数而成为高储能密度陶瓷电容器的主要候选材料之一。研究表明,高致密度的细晶BST陶瓷显示出良好的介电性能。因此,通过制备纳米级钛酸锶钡粉体来获得细晶陶瓷具有重要意义。本研究的目标是采用溶胶-凝胶法制备纳米级钛酸锶钡粉体,利用热分析(TG-DSC)、X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)及ICP发射光谱分析(ICP-AES)对其进行表征,得到了纯度高、均匀性好的纳米级钛酸锶钡粉体。
The barium strontium titanate is the promising material ffor high energy density capacitor because of its high dielectric constant. The fine grain BST ceramic with high density shows the improved dielectric performance. Therefore it is essential to prepare BST nano- powders to obtain fine grain materials. The aim of this study was to prepare nanoscale BST powders by sol-gel method. The BST powders were characterized by TG-DSC, XRD, SEM, TEM and ICP-AES respectively. The results showed that the BST nano-powders with high purity and fine uniformity were obtained.
出处
《中国陶瓷工业》
CAS
2017年第2期14-18,共5页
China Ceramic Industry
关键词
钛酸锶钡
溶胶-凝胶法
纳米粉体
barium strontium titanate
sol-gel method
nanometer powder
