| Zn-Zr共掺对0.95MgTiO_3-0.05CaTiO_3陶瓷介电性能的影响 |
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| 引用本文： | 张东,丁士华.Zn-Zr共掺对0.95MgTiO_3-0.05CaTiO_3陶瓷介电性能的影响[J].电子元件与材料,2011,30(3):12-14. |
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| 作者姓名： | 张东 丁士华 |
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| 作者单位： | 张东,ZHANG Dong(乐山职业技术学院,四川,乐山,614000);丁士华,DING Shihua(西华大学,四川,成都610039) |
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| 基金项目： | 四川省教育厅科技基金资助项目 |
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| 摘 要： | 采用固相反应法制备了(Mg0.93Ca0.05Zn0.02)(Ti1-xZrx)O3介质陶瓷。研究了Zn-Zr共掺杂对0.95MgTiO3-0.05CaTiO3(95MCT)陶瓷介电性能的影响。结果表明:Zn-Zr共掺杂能有效降低95MCT陶瓷的烧结温度至1 300℃,改善介电性能,并对介电常数温度系数αc具有调节作用。当Zn2+和Zr4+掺杂量均为摩尔分数0.02时,在1 300℃烧结2.5 h获得的95MCT陶瓷具有最佳介电性能:εr=22.02,tanδ=2.78×10-4,αc=2.98×10-6/℃。
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| 关 键 词： | 0.95MgTiO3-0.05CaTiO3介质陶瓷 Zn-Zr共掺杂 介电性能 |
Influence of Zn-Zr codoping on dielectric properties of 0.95MgTiO_3-0.05CaTiO_3 ceramics |
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| ZHANG Dong,DING Shihua.Influence of Zn-Zr codoping on dielectric properties of 0.95MgTiO_3-0.05CaTiO_3 ceramics[J].Electronic Components & Materials,2011,30(3):12-14. |
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| Authors: | ZHANG Dong DING Shihua |
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| Affiliation: | ZHANG Dong1,DING Shihua2(1.Leshan Vocational & Technical College,Leshan 614000,Sichuan Province,China,2.Xihua University,Chengdu 610039,China) |
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| Abstract: | (Mg0.95Ca0.05Zn0.02)(Ti1-xZrx)O3 ceramics were prepared using the conventional solid-state method.The effects of Zn-Zr addition on the dielectric properties of the 0.95MgTiO3-0.05CaTiO3(95MCT) ceramics were investigated.The results show that Zn-Zr additive can lower the sintering temperature of 95MCT ceramics to 1 300 ℃,and improve the dielectric properties.Moreover,it also effectively adjusts the temperature coefficient of permittivity(αc).The 95MCT ceramics with mole fraction of 0.02(Zn2+ and Zr4+) possess excellent dielectric properties: εr of 22.02(1 MHz),tanδ of 2.78×10-4 and αc value of 2.98×10-6/℃. |
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| Keywords: | 0 95MgTiO3-0 05CaTiO3 dielectric ceramics Zn-Zr codoping dielectric properties |
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