| 共沉淀法制备纳米YAG粉体 |
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| 引用本文： | 王宏志,高濂. 共沉淀法制备纳米YAG粉体[J]. 无机材料学报, 2001, 16(4): 630-634 |
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| 作者姓名： | 王宏志 高濂 |
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| 作者单位： | 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室, 上海 200050 |
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| 基金项目： | 国家重点基础研究发展规划项目(G1999064506) |
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| 摘 要： | 用共沉淀方法，采用共滴的方式，仔细控制反应过程中的ｐＨ值，获得具有包裹结构的共沉淀物，在９００℃煅烧后，可以获得纯ＹＡＧ相粉体．研究了初始溶液浓度及ｐＨ值对粉体性能的影响，所制备的ＹＡＧ粉体的比表面积随着初始溶液浓度的增加而减少，并随着滴定过程所控制的ｐＨ值的增加而迅速减少．通过优化工艺，可以获得颗粒大小为２０～３０ｎｍ，比表面达６８ｍ２／ｇ的纯 ＹＡＧ粉体．
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| 关 键 词： | 共滴 YAG 纳米粉体 |
| 文章编号： | 1000-324(2001)04-0630-05 |
| 收稿时间： | 2000-06-30 |
| 修稿时间： | 2000-06-30 |
Preparation of Nanoscaled YAG Powders by Co-Precipitation Method |
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| WANG Hong-Zhi,GAO Lian. Preparation of Nanoscaled YAG Powders by Co-Precipitation Method[J]. Journal of Inorganic Materials, 2001, 16(4): 630-634 |
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| Authors: | WANG Hong-Zhi GAO Lian |
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| Affiliation: | State Key Lab of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050 China |
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| Abstract: | The precipitate with the microstructure of Y(OH)3 coating Al(OH)3 was obtained through keeping constant pH value in the co-precipitation processing, and pure YAG phase can be prepared after calcination precipite at 900℃. The special surface area of YAG powder became smaller with the increment of Y, Al solution concentration and pH value controlled during the titration. Nanoscaled YAG powder with the size of 20-30 nm and special surface area of 68m2/g can be prepared by the co-precipitation method. |
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| Keywords: | Co-precipitation YAG Nano Powder |
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