| Co-Mn-Ni-O热敏纳米粉体的制备及其特性 |
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| 引用本文： | 叶峰,妥万禄,巴维真. Co-Mn-Ni-O热敏纳米粉体的制备及其特性[J]. 功能材料与器件学报, 2003, 9(4): 377-380 |
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| 作者姓名： | 叶峰 妥万禄 巴维真 |
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| 作者单位： | 1. 中国科学院新疆理化技术研究所,新疆,乌鲁木齐,830011;中国科学院研究生院,北京,100039
2. 中国科学院新疆理化技术研究所,新疆,乌鲁木齐,830011 |
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| 摘 要： | 采用液相共沉淀法用草酸作为沉淀剂制备了Co—Mn—Ni—O陶瓷热敏电阻纳米粉体，并采用综合热分析(TG、DTA)、X射线衍射(XRD)和扫描电子显微技术(SEM)对该法制备的粉体和对照粉体进行了综合表征，结果显示用该方法可以制备品粒平均粒径在9nm左右、粉体颗粒形貌呈球形、颗粒粒径在50～100nm范围内、粒度分布范围较窄约Co—Mn—Ni—O三元系NTC热敏纳米粉体粉体，能够满足Co—Mn—Ni—O陶瓷热敏电阻对粉体的要求。
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| 关 键 词： | NTC热敏电阻 超微细粉体 纳米粉体 共沉淀法 尖晶石 制备 |
| 文章编号： | 1007-4252(2003)04-0377-04 |
| 修稿时间： | 2003-01-08 |
Preparation and properties of nanometer powder for Co- Mn- Ni- O thermistors |
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| YE Feng,TUO Wan - lu,B A Wei - zhen. Preparation and properties of nanometer powder for Co- Mn- Ni- O thermistors[J]. Journal of Functional Materials and Devices, 2003, 9(4): 377-380 |
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| Authors: | YE Feng TUO Wan - lu B A Wei - zhen |
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| Abstract: | Nanometer powder of Mn - Co - Ni oxides was prepared by using co - precipitation method with oxalic acid as precipitator, and it was tested and analyzed using TG,DTA,XRD,SEM technology. The result shows that the powder of Mn - Co - Ni oxide can be obtained with following properties: grain size about 9nm, near - spherical shape particle with diameter about 50 - 100nm , narrow range of the particle distribution. And these properties meet the requirement for making Co - Mn - Ni - O NTC thermistors. |
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| Keywords: | NTC thermistor ultra - fine powder nanometer powder co - precipitation spinel |
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