| MnO对改性钛酸铅陶瓷压电性能的影响 |
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| 引用本文： | 姜胜林 王筱珍. MnO对改性钛酸铅陶瓷压电性能的影响[J]. 电子元件与材料, 1995, 14(1): 34-36 |
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| 作者姓名： | 姜胜林 王筱珍 |
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| 作者单位： | 武汉华中理工大学 |
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| 摘 要： | ＭｎＯ对Ｐｂ_（１－ｘ）Ｓｒ_ｘ［（Ｓｂ_（１／２）Ｎｂ_（１／２））_ｙＴｉ_（１－ｙ）］Ｏ_３改性钛酸铅压电陶瓷兼有“软性”和“硬性”改性作用。实验表明,添加适当的ＭｎＯ可以得到介电常数εｒ＝２４０,机电耦合系数是ｋｔ＝２４８．５％,机械品质因数Ｑｍ＝１５００,居里温度Ｔｃ＝４３５℃的高稳定性压电陶瓷材料。该材料在高温及高频器件的应用方面有重要的应用价值。
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| 关 键 词： | 氧化锰添加剂 改性钛酸铅压电陶瓷 高温及高频材料 |
Effect of MnO on Piezoelectric Property of Modified Lead Titanate Ceramics |
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| Jiang Shenglin, Wang Xiaozhen, Zhang Xuli. Effect of MnO on Piezoelectric Property of Modified Lead Titanate Ceramics[J]. Electronic Components & Materials, 1995, 14(1): 34-36 |
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| Authors: | Jiang Shenglin Wang Xiaozhen Zhang Xuli |
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| Affiliation: | Jiang Shenglin; Wang Xiaozhen; Zhang Xuli |
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| Abstract: | MnO has "soft" and "hard " effects on modified lead titanate Pb1-x Srx [ (Sb1/2 Nb1/2 ) y Ti1-y]O3 piezoelectric ceramics. Experimenl indicate . that high- stable piezoelectric ceramic material with relative dielectric constant εr= 240 . electromechanical coupling coefficient kt = 48. 5% , mechanical quality factor Qm = 1500 and Curie temperature Tc = 435 ℃ is obtained by adding appropriate amount of MnO to it. This material has important application in high-temperature and high-frequency devices. |
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| Keywords: | manganese monoxide modified lead titanate piezoelectric ceramics high-temperature and high-frequency devices |
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