| 稀土氯化物溶液掺杂BaTiO3基PTC陶瓷性能研究 |
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| 引用本文： | 周斌,徐国跃.稀土氯化物溶液掺杂BaTiO3基PTC陶瓷性能研究[J].电子元件与材料,2005,24(1):10-12,15. |
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| 作者姓名： | 周斌 徐国跃 |
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| 作者单位： | 南京航空航天大学材料科学与技术学院,江苏,南京,210016;南京航空航天大学材料科学与技术学院,江苏,南京,210016 |
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| 摘 要： | 采用稀土氯化物(YCl3、LaCl3)溶液作为施主掺杂剂,在1350℃空气气氛下烧结制备一系列BaTiO3陶瓷样品。借助XRD、XRF等手段,研究了氯化物溶液掺杂对BaTiO3基PTC陶瓷性能的影响。结果显示,YCl3掺杂样品的最低室温电阻率为17?·cm、LaCl3掺杂的为47?·cm,且样品都具有一定的PTC效应。室温电阻率大幅降低的原因,是引入的Cl元素有一部分能进入晶格取代O位起施主作用。
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| 关 键 词： | 电子技术 钛酸钡 稀土氯化物 室温电阻率 PTC效应 |
| 文章编号： | 1001-2028(2005)01-0010-03 |
Study on the Property of the BaTiO3-based PTC Ceramic Doped with Rare-earth Chloride Solution |
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| ZHOU Bin,XU Guo-yue.Study on the Property of the BaTiO3-based PTC Ceramic Doped with Rare-earth Chloride Solution[J].Electronic Components & Materials,2005,24(1):10-12,15. |
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| Authors: | ZHOU Bin XU Guo-yue |
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| Abstract: | A series of BaTiO3ceramic samples were prepared by using rare-earth chloride(YCl3, LaCl3) as donor dopant and sintering in air at 1 350℃. The influence of chloride solution doped on the property of BaTiO3-based PTC ceramic was studied by the aids of XRD, XRF. The results show that the lowest room-temperature resistivity of the sample doped with YCl3 and LaCl3 are 17 ?·cm and 47 ?·cm respectively, and all samples have certain PTC effect. The reason of the room-temperature resistivity decreasing distinctly is part of doping Cl element substituting O-site as donor dopant. |
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| Keywords: | electronic technology BaTiO3 rare-earth chloride room-temperature resistivity PTC effect |
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