Preparation and Characterization of Nano-Crystalline Ba3Ti4Nb4O21 Microwave Dielectric Ceramic Powder

被引：0

作者：

Zou Dong ^{[1
]}

Zhang Qilong ^{[1
]}

Yang Hui ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2010年 / 39卷

关键词：

Ba3Ti4Nb4O21; sol-gel; nano powder; LTCC APPLICATIONS; PERMITTIVITY; PRECURSOR; MGNB2O6;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ba3Ti4Nb4O21 powder was prepared by sol-gel technique using Nb-citrate, Ba(CH3COO)(2) and C16H36O4Ti as raw materials. The crystalline phase of Ba3Ti4Nb4O21 can be obtained at 700 degrees C, which is about 400 degrees C lower than that of common solid-state reaction process. Infrared spectrum, thermo-gravimetric-differential thermal analysis (TG-DTA), X-ray diffraction (XRD) and transmission electron microscopy (TEM) were used to characterize properties of the citrate precursors and the calcined powders. The results show that pure Ba3Ti4Nb4O21 powder with particle size of 30-50 nm are obtained from precursor gel calcined at 700 degrees C for 2 h.

引用

页码：380 / 382

页数：3

共 14 条

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