| TiO_2粒子尺寸及其分布对BaTiO_3系PTC热敏电阻电性能的影响 |
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| 引用本文： | 全学军 李大成. TiO_2粒子尺寸及其分布对BaTiO_3系PTC热敏电阻电性能的影响[J]. 电子元件与材料, 1995, 14(4): 33-36 |
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| 作者姓名： | 全学军 李大成 |
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| 作者单位： | 四川联大化工学院 |
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| 摘 要： | 研究了ＴｉＯ２粒子尺寸及其分布对ＢａＴｉＯ３系ＰＴＣ热敏电阻元件一些电性能的影响，并探讨了有关机理。研究表明，粒子平均尺寸增大，可使室温电阻率ρ２５和耐电压Ｖｂ适当提高，但可能使ＰＴＣ效应有所下降；粒子尺寸分布变宽可使ρ２５和Ｖｂ下降，但可能使ＰＴＣ效应增强。
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| 关 键 词： | TiO2粒子，尺寸及分布，PTC热敏电阻，电性能 |
Effects of TiO_2 Particle Size and Distribution on Electric Performances of PTC Thermistors |
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| Quan Xiejun, Li Dacheng. Effects of TiO_2 Particle Size and Distribution on Electric Performances of PTC Thermistors[J]. Electronic Components & Materials, 1995, 14(4): 33-36 |
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| Authors: | Quan Xiejun Li Dacheng |
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| Affiliation: | Quan Xiejun; Li Dacheng |
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| Abstract: | The effects of particle size and distribution of TiO2 powder on the electric performances of BaTiO3 PTC thermistors have been discussed in this paper. The investigation shows that room temperature resistivity ρ25 and puncture voltage Vbincrease with the mean particle size of TiO2 powder, but PTC effect may be decreases; as the size distribution of TiO2 powder becomes broader ρ25 and Vb decrease and PTC effect may be increased in some degree. |
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| Keywords: | TiO2 particles size and distribution PTC thermistors electric performances |
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