| 棒状钡铁氧体的反相微乳法制备 |
| Preparation of Rodlike Barium Ferrite Particles by Inverse Microemulsion Method |
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| 摘要: |
| 关键词: 反相微乳液 钡铁氧体 前驱体 棒状 |
| 基金项目: |
| Abstract: A rodlike barium ferrite precursor with an average size of 0.72～19.6 μm and aspect ratio of 2.6～8.3 has been successfully prepared in an inverse microemulsion consisting of isooctane, cetanyl trimethyl ammonium bromide (CTAB), n-C4H9OH and water with ammonia and ammonium oxalate as precipitants. On sintering at 780(C, the rodlike precursor particles could be transformed into rodlike particles of barium ferrite(BaFe12O19) with the average size and aspect ratio of 0.69～18.2 μm and 2.3～5.8, respectively. The effect of volume ratio of aqueous phase to oleic phase, the starting concentrations of metal ions and the starting concentration ratios of metal ions to precipitants were investigated. |
| Keywords: inverse water-in-oil microemulsion barium ferrite precursor rodlike |
| 投稿时间：2004-09-01 修订日期：2004-10-30 |
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| 杨鹏飞,王明刚,孟凡君,张俊华,孙爱娟,鲁成学.棒状钡铁氧体的反相微乳法制备[J].无机化学学报,2005,21(4):607-611. |
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