| 制粉工艺对BaTiO_3粉体理化性能的影响 |
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| 引用本文： | 汤清华,吴国安,潘晓光. 制粉工艺对BaTiO_3粉体理化性能的影响[J]. 电子器件, 2001, 0(2) |
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| 作者姓名： | 汤清华 吴国安 潘晓光 |
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| 作者单位： | 华中科技大学电子科学与技术系!武汉430074 |
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| 摘 要： | 本文用化学共沉淀法制备 Ba Ti O3超细粉 ,实验中分别采用氢氧化钠和草酸作沉淀剂。实验发现 ,采用不同的沉淀剂均能制出具有四方晶相的 Ba Ti O3粉体 ,但其所含微量成分有所不同 ,粉体粒度分布有较大差别。通过对粉体进行半导化处理 ,发现用氢氧化钠作沉淀剂时不易半导化 ,且其烧结性能及机械性能较差 ,而用草酸作沉淀剂所得的粉体易半导化 ,且具有较好的烧结性能和机械性能。
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| 关 键 词： | 化学共沉淀法 BaTiO3超细粉 理化性能 |
The Effect of Powder Prepared Process on Physical and Chemical Characteristic of BaTiO_3 Powder |
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| TANG Qinghua,WU Guoan,PAN Xiaoguang. The Effect of Powder Prepared Process on Physical and Chemical Characteristic of BaTiO_3 Powder[J]. Journal of Electron Devices, 2001, 0(2) |
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| Authors: | TANG Qinghua WU Guoan PAN Xiaoguang |
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| Abstract: | In this paper, the chemical coprecipitation is used for preparation of BatiO-3 ultrafine powder. In experiment process, NaOH and H-2C-2O-4 is used as precipitator. It was found that the tetragonal BaTiO-3 powder could be produced with two kinds of precipitator, but tiny component and the granularity of powder is different. The powder what is produced with H-2C-2O-4 precipitator is easier to become semiconductor, and the characteristic of sinter and mechanical characteristic is better than using NaOH precipitator. |
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| Keywords: | chemical copercipitation BaTiO-3 ultrafine powder physical and chemistry characteristic. |
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