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Microstructures of nanosized alumina powders synthesized by sol-gel method

Microstructures of nanosized alumina powders synthesized by sol-gel method
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摘要 The microstructures of nanosized alumina powders prepared by sol gel routine were systematically studied with transmission electron microscopy and X ray diffractometer. It was found that the morphologies of alumina gel powders change in the orders of caterpillar thorn granular dumbbell shaped structures during calcining at temperatures from 20?℃ to 800?℃, 1?200?℃ and 1?300?℃. The caterpillar shaped structure composed of strings with a diameter of 5?nm. The microstructures of nanosized alumina powders prepared by sol gel routine were systematically studied with transmission electron microscopy and X ray diffractometer. It was found that the morphologies of alumina gel powders change in the orders of caterpillar thorn granular dumbbell shaped structures during calcining at temperatures from 20?℃ to 800?℃, 1?200?℃ and 1?300?℃. The caterpillar shaped structure composed of strings with a diameter of 5?nm.
作者 王晶 张波
出处 《中国有色金属学会会刊：英文版》 CSCD 2002年第1期46-48,共3页 Transactions of Nonferrous Metals Society of China
关键词 纳米材料 氧化铝粉末 溶胶凝胶 显微组织 nanosized alumina powders sol gel microstructure
分类号 TF125 [冶金工程—粉末冶金]
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中国有色金属学会会刊：英文版
2002年 第1期

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