| 纳米Ba_3Ti_4Nb_4O_(21)微波介质陶瓷粉体制备及表征 |
| |
| 引用本文： | 邹栋,张启龙,杨辉.纳米Ba_3Ti_4Nb_4O_(21)微波介质陶瓷粉体制备及表征[J].稀有金属材料与工程,2010(Z2). |
| |
| 作者姓名： | 邹栋 张启龙 杨辉 |
| |
| 作者单位： | 浙江大学; |
| |
| 基金项目： | 浙江省重大科技攻关项目资助(2006C11119) |
| |
| 摘 要： | 以铌柠檬酸盐、乙酸钡和钛酸正四丁酯为原料,采用溶胶-凝胶法,通过控制反应条件,在700℃的温度下获得Ba3Ti4Nb4O21纳米粉体,比采用普通固相法合成的温度低400℃左右。用红外光谱,差热-热重,X射线衍射以及透射电镜等手段表征Ba3Ti4Nb4O21柠檬酸盐前驱体以及煅烧后粉体的各项特性。结果表明:用柠檬酸盐溶胶-凝胶法制得的前驱体在700℃煅烧2h后,可获得纯Ba3Ti4Nb4O21纳米粉体,其平均粒径在30～50nm,适合于微波介质陶瓷的制备。
|
| 关 键 词： | Ba3Ti4Nb4O21 Sol-Gel 纳米粉体 |
Preparation and Characterization of Nano-Crystalline Ba_3Ti_4Nb_4O_(21) Microwave Dielectric Ceramic Powder |
| |
| Zou Dong,Zhang Qilong,Yang Hui.Preparation and Characterization of Nano-Crystalline Ba_3Ti_4Nb_4O_(21) Microwave Dielectric Ceramic Powder[J].Rare Metal Materials and Engineering,2010(Z2). |
| |
| Authors: | Zou Dong Zhang Qilong Yang Hui |
| |
| Affiliation: | Zou Dong,Zhang Qilong,Yang Hui (Zhejiang University,Hangzhou 310027,China) |
| |
| Abstract: | 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 oC, which is about 400 oC 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 t... |
| |
| Keywords: | Ba3Ti4Nb4O21 sol-gel nano powder |
| 本文献已被 CNKI 等数据库收录！ |
