| 共沉法制备PbTiO3微粉控制晶粒大小方法的研究 |
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| 引用本文： | 赵振国,程虎民.共沉法制备PbTiO3微粉控制晶粒大小方法的研究[J].高等学校化学学报,1994,15(7):1063-1067. |
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| 作者姓名： | 赵振国 程虎民 |
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| 作者单位： | 北京大学物理化学研究所 |
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| 摘 要： | 研究了超声分散作用和共沉物陈化条件对共沉法制备ＰｂＴｉＯ３微粉晶粒大小的影响，结果表明，在超声分散作用下进行共沉反应可使晶粒明显减小，并可降低ＰｂＴｉＯ３的晶化温度，共沉物在不同类型的表面活性剂水溶液中陈化效果不同，非离子型表面活性剂及其混合物可使陈化物粒子及ＰｂＴｉＯ３晶粒明显减小。
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| 关 键 词： | 共沉法 晶粒 钛酸铅 微粉 |
Method of Controlling Grain Size of Coprecipitated PbTiO_3 Powders |
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| ZHAO Zhen-Guo,CHENG Hu-Min,MA Ji-Ming.Method of Controlling Grain Size of Coprecipitated PbTiO_3 Powders[J].Chemical Research In Chinese Universities,1994,15(7):1063-1067. |
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| Authors: | ZHAO Zhen-Guo CHENG Hu-Min MA Ji-Ming |
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| Abstract: | The effects of ultrasonic dispersion and ageing conditions on the grain size of the coprecipitated PbTiO_3 powders have been studied.The results show that:(1) the grain size and the crystallization temperature were decreased markedly by ultrasonic dispersion;(2) the ageing effects in the solutions of the anionic,cationic and nonionic surfactants were different from each other.As ageing in the solutions of the nonionic surfactants and its mixture,the grain size of PbTiO_3 was decreased. |
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| Keywords: | PbTiO_3 Powders Coprecipitation method Grain size |
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