| A12O3在一次烧结BaTiO3中的作用探讨 |
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| 引用本文： | 王海,赵鹤云,张中明,张俊.A12O3在一次烧结BaTiO3中的作用探讨[J].云南大学学报(自然科学版),2002,24(1):38-41. |
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| 作者姓名： | 王海 赵鹤云 张中明 张俊 |
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| 作者单位： | 云南大学物理系,云南昆明,650091 |
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| 基金项目： | 云南省自然科学基金资助项目 ( 98A0 0 2G) |
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| 摘 要： | 探索了掺微量Al2O3和SiO2的BaTiO3的一次烧结工艺,该工艺有效降低了烧结温度.应用电子探针、光学显微镜、X射线衍射仪,TN-524能谱等设备对样品进行分析.BaTiO3瓷体电阻随Al2O3掺杂量的变化关系及Al在BaTiO3中分布情况等实验事实,表明在BaTiO3烧结过程中Al可能是一种半导化元素,起施主的作用.通过新工艺,得到了性能较好的BaTiO3热敏电阻.
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| 关 键 词： | Al2O3 热敏电阻 烧结 |
| 文章编号： | 0258-7971(2002)01-0038-04 |
| 修稿时间： | 2001年8月8日 |
Function of Al2O3 in the One time Sintering Process of Thermistor BaTiO3 |
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| WANG Hai,ZHAO He-yun,ZHANG Zhong-ming,ZHANG Jun.Function of Al2O3 in the One time Sintering Process of Thermistor BaTiO3[J].Journal of Yunnan University(Natural Sciences),2002,24(1):38-41. |
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| Authors: | WANG Hai ZHAO He-yun ZHANG Zhong-ming ZHANG Jun |
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| Institution: | Department of Physics, Yunnan University, Kunming 650091, China |
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| Abstract: | One time sintering of BaTiO 3 with Al 2O 3 and SiO 2 minim adulterants was studied.This technique decreased sintering temperature.Samples were studied by Electron Probe,Optical Microscope,and X-ray diffraction instrument,etc.According to experimental facts of the distribution of Al in the samples and the resistance variation of BaTiO 3 thermistor with different quantity of Al 2O 3,it was concluded that Al might be an element that promotes semi-conduction and its function could be regarded as a donor.BaTiO 3 thermistor with better qualities was obtained by new technique. |
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| Keywords: | Al 2O 3 thermistor sintering |
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