| BaPbO3／BaTiO3系复合陶瓷的研究 |
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| 引用本文： | 鲍亚华,陈昂.BaPbO3／BaTiO3系复合陶瓷的研究[J].硅酸盐学报,1995,23(1):22-26. |
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| 作者姓名： | 鲍亚华 陈昂 |
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| 作者单位： | 浙江大学材料科学与工程系 |
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| 摘 要： | 报道了导电陶瓷ＢａＰｂＯ３与铁电陶瓷ＢａＴｉＯ３进行复合的结果，研究了该复合功能陶瓷的物相、导电性和低温电阻温度特性。结果表明：采用合理的合成工艺，可得到呈现混和分布的两相复合功能陶瓷材料，该复合材料的电导特征符合三维渗流导电行为。
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| 关 键 词： | 铁电陶瓷 导电陶瓷 复合陶瓷 钛酸钡 铅酸钡 |
STUDY OF COMPOSITE CERAMICS OF BaPbO_3-BaTiO_3 SYSTEM |
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| Bao Yahua,Chen Ang,Zhi Yu,Han Jiaping,Dai Xi.STUDY OF COMPOSITE CERAMICS OF BaPbO_3-BaTiO_3 SYSTEM[J].Journal of The Chinese Ceramic Society,1995,23(1):22-26. |
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| Authors: | Bao Yahua Chen Ang Zhi Yu Han Jiaping Dai Xi |
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| Abstract: | A kind of composite ceramics of BaPbO_3.BaTiO_3 system and its phase structure and electricaltransport properties of the samples was reported in the paper.The curve of resistivity of the composites versusBaPbO_3 volume fraction can be well explained by the three- dimensional percolation model in the two-phasesystem of BaTiO_3 and BaPbO_3,and the percolation threshold value is about 0.14.When BaPBO_3 content ex-ceeds the percolation threshold value,the electrical property of the composites is similar to that of BaPbO_3 ceram-ic.When the content of BaPbO_3 is about 0. 04,the temperature dependence of resistivity of the composite showsPTC (positive temperature coefficient) effect,which is similar to that of BaTiO_3 semiconducting ceramics. |
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| Keywords: | percolation conduction ferroelectric ceramics conduction ceramics composite ceramics |
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