| Effects of PSMA and experimental conditions on the morphologies of BaCO_3 whiskers |
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| 作者姓名： | CHENG Bei YU Xiaoxiao YU Jiaguo ZHAO XiujianState Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Wuhan China |
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| 作者单位： | CHENG Bei，YU Xiaoxiao，YU Jiaguo，ZHAO XiujianState Key Laboratory of Advanced Technology for Material Synthesis and Processing，Wuhan University of Technology，Wuhan 430070，China |
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| 摘 要： | Effects of PSMA and experimental conditions on the morphologies of BaCO_3 whiskers
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Effects of PSMA and experimental conditions on the morphologies of BaCO_3 whiskers |
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| CHENG Bei,YU Xiaoxiao,YU Jiaguo,ZHAO XiujianState Key Laboratory of Advanced Technology for Material Synthesis and Processing,Wuhan University of Technology,Wuhan ,China.Effects of PSMA and experimental conditions on the morphologies of BaCO_3 whiskers[J].Journal of University of Science and Technology Beijing,2006(8). |
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| Authors: | CHENG Bei YU Xiaoxiao YU Jiaguo ZHAO XiujianState Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Wuhan China |
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| Institution: | CHENG Bei,YU Xiaoxiao,YU Jiaguo,ZHAO XiujianState Key Laboratory of Advanced Technology for Material Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China |
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| Abstract: | BaCO_3 whiskers exhibiting different morphologies were fabricated by a simple precipitation reaction of barium chloride with sodium carbonate in the absence and presence of poly-(styrene-alt-maleic acid) (PSMA) as a crystal growth modifier at room temperature. The as-prepared products were characterized by scanning electron microscopy (SEM),transmission electron microscopy (TEM),and X-ray diffraction (XRD). The influences of experimental parameters on the size and morphology of BaCO_3 whiskers were investigated and discussed. It was found that the as-prepared BaCO_3 whiskers are single crystals with diameter ranging from 100 to 300?nm,and grow along the crystallographic a-axis or 100] direction. BaCO_3 whiskers with different morphologies,such as branching and dendritic structure,can be obtained depending on the experimental conditions. With increasing PSMA concentration,the diameter of BaCO_3 whiskers decreases. |
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| Keywords: | BaCO_3 whiskers morphological control poly-(styrene-alt-maleic acid) single crystal |
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