| ZnO－MgO－Al_2O_3陶瓷性能研究 |
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| 引用本文： | 徐业彬,季幼章,王士良.ZnO－MgO－Al_2O_3陶瓷性能研究[J].无机材料学报,1994(4). |
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| 作者姓名： | 徐业彬 季幼章 王士良 |
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| 作者单位： | 华中理工大学，固体电子学系，中国科学院等离子体物理所 |
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| 摘 要： | ＺｎＯ－ＭｇＯ－Ａｌ２Ｏ３陶瓷是一种复合烧结体，其主晶相为ＺｎＯ与ＺｎＡｌ２Ｏ４，且均以晶粒存在．ＭｇＯ能调节电阻温度系数，使之由负变为正．Ａｌ２Ｏ３能调节电阻率．慢的降温速度能提高线性及耐浪涌能量，降低电阻温度系数．
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| 关 键 词： | ZnO－MgO－Al_2O_3陶瓷，线性电阻，降温速度，微观结构 |
Properties of ZnO-MgO-Al_2O_3 ceramics |
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| Xu Yebin, Ji Youzhang, Wang Shiliang.Properties of ZnO-MgO-Al_2O_3 ceramics[J].Journal of Inorganic Materials,1994(4). |
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| Authors: | Xu Yebin Ji Youzhang Wang Shiliang |
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| Abstract: | ZnO-MgO-Al2O3 ceramic is a composite sintered body of crystal grains of ZnO and ZnAl2O3, and having no grain boundary layer of higher electric resistance than that of the crystal grains of ZnO. The resistance-temperature coefficient can be changed from negative to positive with the increase of MgO content, the resistivity is increased with the increase of Al2O3 content. Slow cooling speed can improve the properties of ZnO-MgO-Al2O3 ceramics. |
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| Keywords: | ZnO-MgO-Al2O3 ceramics linear resistor cooling speed microstructure |
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