| 熔盐法合成莫来石晶须 |
| Synthesis of Mullite Whiskers Using Salt Flux Method |
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| 摘要: |
| 关键词: 莫来石 熔盐法 晶须 生长机理 |
| 基金项目: |
| Abstract: Using SiO2 and Al2O3 as raw materials, mullite whiskers were prepared by heating at 1 200 ℃ for 4 h in potassium sulfate flux. The morphology, crystalline characteristics, compositions and growth direction of whiskers were investigated by means of XRD, SEM, EDS and TEM. The results indicate that the as-synthesized whiskers are about 4 μm in length and 0.5～1 μm in diameter, and mullite whiskers grow along c-axis direction ([001] direction). The formation of mullite whiskers is controlled by dissolution-precipitation reactions, and the salt flux method is a good way to grow mullite whiskers. |
| Keywords: mullite salt flux whisker growth mechanism |
| 投稿时间：2004-07-12 修订日期：2004-09-17 |
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| 张冰,曹传宝,许亚杰,朱鹤荪.熔盐法合成莫来石晶须[J].无机化学学报,2005,21(2):277-280. |
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