首页> 外文会议>China International Conference on Nanoscience and Technology; 20050609-11; Beijing(CN) >A Study on the Preparation of Nano-Crystalline Barium Titanate Powder by a Sol-gel Method
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A Study on the Preparation of Nano-Crystalline Barium Titanate Powder by a Sol-gel Method

机译:溶胶-凝胶法制备纳米晶钛酸钡粉体的研究

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In this work, high purity BaTiO_3 (BT) nano-powders by a sol-gel process was prepared with Ba(NO_3)_2 and Ti(C_4H_9O)_4 materials in order to acquire uniform size grains. The effects of the crystallinity, microstructure of BT nano-powders calcined at different temperatures and dielectric properties of the ceramics were investigated by XRD, SEM and impedance analyzer, respectively. Scanning electron microscopy and X-ray diffraction investigation revealed cubic plates and crystallite size. The results revealed that crystallite size and calcination temperature of BT and influence on the dielectric constant.
机译:在这项工作中,采用Ba(NO_3)_2和Ti(C_4H_9O)_4材料通过溶胶-凝胶法制备了高纯度的BaTiO_3(BT)纳米粉体,以获得均匀尺寸的晶粒。分别通过XRD,SEM和阻抗分析仪研究了在不同温度下煅烧的BT纳米粉的结晶度,微观结构和陶瓷介电性能的影响。扫描电子显微镜和X射线衍射研究显示立方板和微晶尺寸。结果表明,BT的微晶尺寸和煅烧温度及其对介电常数的影响。

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