| 非晶态羧酸盐法合成NTC热敏陶瓷用Ni1.0Co0.2Mn1.8O4纳米粉体的研究 |
| Synthesis of Nano-crystalline Ni1.0Co0.2Mn1.8O4 Powders for NTC Thermistor by Non-crystalloid Precursor Method |
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| 摘要: |
| 关键词: 溶胶凝胶 纳米 MnCoNiO氧化物 油酸 NTC热敏电阻 |
| 基金项目: |
| Abstract: Nano-crystalline Ni1.0Co0.2Mn1.8O4 powders were synthesized via non-crystalloid precursor method. The results on the precursor by XRD and IR techniques show that the stable non-crystalloid precursor could be formed by adding oleic acide and adjusting the pH values. The dried precursor exhibited auto-catalytic combustion behavior. After being calcined at 800 ℃, the Ni1.0Co0.2Mn1.8O4 powders with spinel structure were obtained. It has been demonstrated that the synthesized powder is well dispersed and with higher sintering activity. The Model of non-crystalloid precursor has been suggested. The reaction mechanism has also been proposed. |
| Keywords: sol-gel nanometer MnCoNiO oleic acid NTC thermistor |
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| 王卫民,高峰,赵鸣,刘向春,田长生.非晶态羧酸盐法合成NTC热敏陶瓷用Ni1.0Co0.2Mn1.8O4纳米粉体的研究[J].无机化学学报,2006,22(3):515-518. |
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