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| 碳酸钙对BaTiO_3系PTC热敏电阻电性能的影响 | |
| 引用本文： | 朱盈权,国营第,侍刚,何海清,祝炳和.碳酸钙对BaTiO_3系PTC热敏电阻电性能的影响[J].电子元件与材料,1999,18(5):17-19. |
| 作者姓名： | 朱盈权 国营第 侍刚 何海清 祝炳和 |
| 作者单位： | 1. 国营第715厂,四川,成都,610058 2. 胜利油田益达精细化工有限公司,山东,东营,257064 3. 攀钢钢城企业总公司,四川,攀枝花,617064 4. 中国科学院上海硅酸盐研究所,上海,200050 |
| 摘 要： | 研究了碳酸钙对ＢａＴｉＯ３ 系ＰＴＣ热敏电阻电性能的影响。结果表明，随着钙加入量的增加，ＢａＴｉＯ３ 的低温相变点， 移向更低的温度； 促进烧成时芯片的致密化； 使ＢａＴｉＯ３ 晶粒尺寸几乎呈线性下降； 使晶粒、晶界电阻下降； α、Ｒｍ ａｘ／Ｒｍ ｉｎ 无大的变化， ρ２５增大， Ｖｂ 提高。碳酸钙的理化指标， 对ＰＴＣ热敏电阻电性能也有很大影响， 据此推荐了ＢａＴｉＯ３ 系ＰＴＣ热敏电阻用ＣａＣＯ３ 的技术标准 |
| 关 键 词： | PTC热敏电阻 电性能 碳酸钙 理化指标 |
The Effects of CaCO3 on the Electrical Properties of BaTiO3 Based PTC Thermistors |
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| ZHU Ying-quan,GUO Ying-di,SHI Gang,HE Hai-qing,ZHU Bing-he.The Effects of CaCO3 on the Electrical Properties of BaTiO3 Based PTC Thermistors[J].Electronic Components & Materials,1999,18(5):17-19. | |
| Authors: | ZHU Ying-quan GUO Ying-di SHI Gang HE Hai-qing ZHU Bing-he |
| Abstract: | ELECTRONIC COMPONENTS & MATERIALS (China),Vol.18,No.5,P.17 19(Oct.1999).In Chinese. The effects of CaCO 3 on the electrical properties of BaTiO 3 based PTC thermistors are studied.The results show that with the increase of the added Ca,the transformation temperature of BaTiO 3 goes down.Therefore,sintered disks are more compact,the crystal grains and grain boundary reduces, ρ 25 and V b increase but α , R max / R min remains almost the same.Furthermore,the physical and chemical properties of CaCO 3 also have an effect on the electric properties of PTC thermistors;there upon,the technical specifications related are recommended.(7 refs.) |
| Keywords: | PTC thermistors electrical properties CaCO_3 physical & chemical properties |
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