| 纳米钛酸锶钡粉体的熔盐法制备 |
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| 引用本文： | 宛新武,黄焱球,高兰芳,刘春凤,周飞.纳米钛酸锶钡粉体的熔盐法制备[J].电子元件与材料,2008,27(2):54-56. |
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| 作者姓名： | 宛新武 黄焱球 高兰芳 刘春凤 周飞 |
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| 作者单位： | 中国地质大学,材料科学与化学工程学院,湖北,武汉,430074 |
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| 摘 要： | 以TiO2、BaCO3和Sr(NO3)2为原料,KNO3和KOH为熔剂,利用熔盐法分别在650,750℃下,制备了钛酸锶钡(BaxSr1–xTiO3,简称BST)纳米粉体。研究了不同温度和不同熔盐的配比条件下BST粉体的生长特征。结果表明,熔盐配比和温度的影响显著。当ζ(KNO3∶KOH)为15∶1时,在750℃下反应3h可形成单一相的BST纳米粉体,晶粒度为42nm;当其为9∶1时,在650℃下反应5h便可形成单一相的BST粉体,晶粒度为89nm。
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| 关 键 词： | 无机非金属材料 钛酸锶钡 熔盐法 纳米粉体 |
| 文章编号： | 1001-2028（2008）02-0054-03 |
| 收稿时间： | 2007-11-20 |
| 修稿时间： | 2007年11月20 |
Preparation of BaxSr1-xTiO3 nanopowder with molten salt method |
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| WAN Xin-wu,HUANG Yan-qiu,GAO Lan-fang,LIU Chun-feng,ZHOU Fei.Preparation of BaxSr1-xTiO3 nanopowder with molten salt method[J].Electronic Components & Materials,2008,27(2):54-56. |
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| Authors: | WAN Xin-wu HUANG Yan-qiu GAO Lan-fang LIU Chun-feng ZHOU Fei |
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| Affiliation: | WAN Xin-wu,HUANG Yan-qiu,GAO Lan-fang,LIU Chun-feng,ZHOU Fei ( Faculty of Materials Science , Chemical Engineering,China University of Geosciences,Wuhan 430074,China ) |
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| Abstract: | BaxSr1–xTiO3 (BST) nanopowders were prepared by the reaction between TiO2, BaCO3 and Sr(NO3)2 in the molten salts of KNO3 and KOH. It is found that the crystal growth characteristics are affected obviously by both the growth temperature and the mass ratio of KNO3 to KOH. The single-phase BST powder with crystallites of 42 nm and 89 nm is prepared at 750 ℃ and 650 ℃, respectively, when the ratio of KNO3 to KOH is 15∶1 and 9∶1. |
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| Keywords: | non-metallic inorganic material barium strontium titanate molten salt method nanopowder |
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