| 溶胶-凝胶法制备超细Ce-Ti复合粉体的研究 |
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| 引用本文： | 李自轩,左秀琴.溶胶-凝胶法制备超细Ce-Ti复合粉体的研究[J].北京工商大学学报(自然科学版),2007,25(4):4-7. |
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| 作者姓名： | 李自轩 左秀琴 |
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| 作者单位： | 北京工商大学,材料科学与工程系,北京,100037 |
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| 摘 要： | 采用溶胶-凝胶法制备了Ce-Ti复合超细粉体,主要研究了溶胶-凝胶法制备过程中溶胶-凝胶形成的条件及不同焙烧温度对超细粉体粒径的影响.结果表明,C2H5OH与H2O摩尔比在0.5~2.0时能形成稳定的凝胶;采用真空干燥能形成松散的结构,不易团聚,真空干燥温度60℃,真空干燥压力5 kPa左右,真空干燥时间大于24 h;超细Ce-Ti复合粉体的平均粒径随干凝胶焙烧温度的升高而增加,在600℃下焙烧1 h,能得到较好的效果,粒径可达5.9 nm.
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| 关 键 词： | 溶胶-凝胶 Ce-Ti复合粉体 超细粉体 |
| 文章编号： | 1671-1513（2007）04-0004-04 |
| 收稿时间： | 2007-04-12 |
STUDY ON PREPARATION OF ULTRAFINE CE-TI COMPOSITE POWDER BY SOL-GEL METHOD |
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| LI Zi-xuan,ZUO Xiu-qin.STUDY ON PREPARATION OF ULTRAFINE CE-TI COMPOSITE POWDER BY SOL-GEL METHOD[J].Journal of Beijing Technology and Business University:Natural Science Edition,2007,25(4):4-7. |
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| Authors: | LI Zi-xuan ZUO Xiu-qin |
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| Institution: | Department of Material Science and Engineering, -qln Beijing University, Beijing 100037, China Technology and Business |
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| Abstract: | Ultrafine Ce-Ti composite powder were prepared by Sol-Gel method.It showed that when the mol ratios of alcohol to water arranged from 0.5 to 2.0,it can form a stable sol-gel system.We can get ultra fine particles as 5.9 nm when calcinated wet sol at 600 ℃ for 1 hour.The particle size was larger than before when enhanced the calcination temperature from 600 ℃ to 700 ℃ and 900 ℃. |
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| Keywords: | Sol-Gel Ce-Ti composite powder ultrafine powder |
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