| Al_2O_3包覆Ba_(0.6)Sr_(0.4)TiO_3复合粉体制备及表征 |
| |
| 引用本文： | 王 通,高 峰,胡国辛,刘亮亮,李 博,田长生.Al_2O_3包覆Ba_(0.6)Sr_(0.4)TiO_3复合粉体制备及表征[J].无机化学学报,2010,26(5):811-816. |
| |
| 作者姓名： | 王 通 高 峰 胡国辛 刘亮亮 李 博 田长生 |
| |
| 作者单位： | 西北工业大学材料学院,西安,710072 |
| |
| 基金项目： | 航空科学基金，西安应用材料创新基金，西北工业大学基础研究基金，西北工业大学研究生创业种子基金 |
| |
| 摘 要： | 采用液相包覆法制备了Al2O3包覆的Ba0.6Sr0.4TiO3复合粉体。通过SEM,TEM,TG-DSC,XRD,XPS和ζ电位测试对包覆前后粉体的表面形貌、组织结构、等电点进行了测试和分析。结果表明:Al2O3以无定形结构成功的包覆在Ba0.6Sr0.4TiO3粉体表面,形成了Ba-O-Al、Sr-O-Al和Ti-O-Al键,Ba0.6Sr0.4TiO3颗粒的等电点由包覆前的pH=3.2增大至pH=8。
|
| 关 键 词： | 钛酸锶钡 氧化铝 表面包覆 复合粉体 |
Preparation and Characterization of Al2O3-Coated Ba0.6Sr0.4TiO3 Composite Powders |
| |
| WANG Tong,GAO Feng,HU Guo-Xin,LIU Liang-Liang,LI Bo and TIAN Chang-Sheng.Preparation and Characterization of Al2O3-Coated Ba0.6Sr0.4TiO3 Composite Powders[J].Chinese Journal of Inorganic Chemistry,2010,26(5):811-816. |
| |
| Authors: | WANG Tong GAO Feng HU Guo-Xin LIU Liang-Liang LI Bo and TIAN Chang-Sheng |
| |
| Abstract: | Ba0.6Sr0.4TiO3-Al2O3(BSTO-Al2O3) composite powder was prepared by liquid-phase cladding process. The surface morphology, structure and the zeta potential of uncoated and alumina-coated BSTO powder were characterized by SEM, TEM, TG-DSC, XRD,XPS and Malvem Instruments Zetasize Systems. The results indicate that the alumina nanofilms exist in amorphous hydrated alumina phase and anchor at the surfaces of Ba0.6Sr0.4TiO3 particles via Ba-O-Al 、Sr-O-Al and Ti-O-Al bonding, the Isoelectric point (IEP) of Ba0.6Sr0.4TiO3 particle shifts from pH=3.2 to pH=8. |
| |
| Keywords: | barium strontium titanate aluminum oxide surface coating composite powders |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《无机化学学报》浏览原始摘要信息 |
| 点击此处可从《无机化学学报》下载免费的PDF全文 |
|
