| 以石墨粉为造孔剂制成的多
孔湿敏陶瓷及其特性分析 |
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| 引用本文： | 武明堂,孙鸿涛,李平.以石墨粉为造孔剂制成的多
孔湿敏陶瓷及其特性分析[J].传感技术学报,1989,2(3). |
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| 作者姓名： | 武明堂 孙鸿涛 李平 |
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| 作者单位： | 西安交通大学
(武明堂，孙鸿涛)，西安交通大学(李平) |
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| 摘 要： | 本文报道的钴铁尖晶石多孔湿敏陶瓷,具有电阻率低,电阻和相对湿度呈线性关系的特点。该材料制成的湿敏元件不需要加热清洗,性能稳定。以石墨粉为造孔剂制成多孔湿敏陶瓷,可以提高湿敏元件的湿度灵敏度,并且有利于改进湿敏元件的长期稳定性。最后,讨论了石墨的钝化作用。
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| 关 键 词： | 多孔陶瓷 湿敏特性 湿度传感器 |
A Graphitety Porous Humidity-Sensing Ceramic and its Behaviors |
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| Wu Ming tang,Sun Hongtao and Li Ping.A Graphitety Porous Humidity-Sensing Ceramic and its Behaviors[J].Journal of Transduction Technology,1989,2(3). |
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| Authors: | Wu Ming tang Sun Hongtao and Li Ping |
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| Affiliation: | Xi'an Jiaotong University |
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| Abstract: | A porous ceramic composed of cobalt-iron spinel has been investigated, The ceramic prepared by adding graphite fine-powder has low resistivity and linear relation of resistance versus relative humidity, and is suitable for a humidity sensor. We found that sensitivity to humidity and long-term stability of the humidity sensor were improved obviously. It suggests that the improvent is due to pore-forming and passivation effect of graphite powder. |
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| Keywords: | porous ceramic humidity-sensitive behavior humidity sensor |
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