| 镁掺杂对ZnO-Al_2O_3系陶瓷性能的影响 |
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| 引用本文： | 纪士东,卢都友. 镁掺杂对ZnO-Al_2O_3系陶瓷性能的影响[J]. 电子元件与材料, 1999, 18(3): 7-8 |
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| 作者姓名： | 纪士东 卢都友 |
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| 作者单位： | 南京化工大学材料学院,南京,210009 |
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| 摘 要： | 运用回归数学分析并结合ＳＥＭ观测结果，对影响ＺｎＯ－Ａｌ２Ｏ３系陶瓷电阻及阻－温特性的线性化机制进行了探讨。研究表明，Ａｌ２Ｏ３、ＭｇＯ的掺杂及烧成工艺均对材料的电阻率和电阻温度系数有较为明显的影响，镁掺杂对材料的电子激活能有较大的影响，当材料的电子激活能值较低时，通过回归处理发现其阻－温特性具有较好的线性，符合麦克劳林公式。
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| 关 键 词： | 镁掺杂 氧化锌－三氧化二铝系陶瓷 阻－温特性 线性化 麦克劳林公式 |
Effect of Addition of MgO on Properties of ZnO-Al2O Ceramics |
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| Ji Shidong,Lu Duyou. Effect of Addition of MgO on Properties of ZnO-Al2O Ceramics[J]. Electronic Components & Materials, 1999, 18(3): 7-8 |
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| Authors: | Ji Shidong Lu Duyou |
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| Abstract: | Linearization has an effect on the resistivity and R t characteristics of ceramics of ZnO Al 2O 3. The mechanism of linearization is studied with regression mathematical analysis and SEM. The results indicate that resistivity and R t characteristics will be affected by doping Al 2O 3 and MgO, and the sintering process, and the active energy by doped Mg, and that when active energy relatively low, R t characteristics become linear, in accord with Maclawrence formula. (2 refs ) |
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| Keywords: | doped Mg ceramics of ZnO Al 2O 3 R t characteristics linearization Maclawrence formula |
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