| 陶瓷热敏电阻氢处理降阻的研究 |
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| 引用本文： | 樊玉薇,贾连娣.陶瓷热敏电阻氢处理降阻的研究[J].东南大学学报(自然科学版),1996,26(3):106-109. |
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| 作者姓名： | 樊玉薇 贾连娣 |
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| 作者单位： | 东南大学电子工程系 |
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| 摘 要： | 陶瓷热敏电阻氢处理降阻的研究樊玉薇，贾连娣，吴冲若（东南大学电子工程系，南京２１００１８）为使钛酸钡系陶瓷正温度系数热敏电阻（ＰＴＣＲ）的电阻率在一定范围内，一般方法是通过控制原材料纯度、微量元素分布均匀性与工艺过程一致性来减小阻值分散［１］，而对烧...
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| 关 键 词： | 陶瓷 热敏电阻 氢处理 降阻 正温度系数 PTCR |
A Study on the Annealing of Ceramic PTCR in Hydrogen Atmosphere |
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| Fan Yuwei, Jia Liandi, Wu Chongruo.A Study on the Annealing of Ceramic PTCR in Hydrogen Atmosphere[J].Journal of Southeast University(Natural Science Edition),1996,26(3):106-109. |
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| Authors: | Fan Yuwei Jia Liandi Wu Chongruo |
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| Abstract: | A new method to adjust the resistivity of BaTiO3 ceramic PTCR in a lower temperature is proposed. It is shown that the resistivity of ceramic can be reduced controllably by annealiug the sample in hydrogen atmosphere. The stability of resistivity in a long time and the change of the electrical properties of ceramics after the annealing are studied. It is concluded that the electrical properties of ceramic annealed in hydrogen atmosphere to a certain degree can be improved obviously. The mechanism of the decrease of the resistivity is discussed based on the change of the potential barrier of grain-boundary. |
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| Keywords: | positive temperature coefficient resistance hydrogen atmosphere reduction ofresistivity mechanism |
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