| 过量PbO、MgO对PMN-PT陶瓷介电性能的影响 |
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| 引用本文： | 刘霞,曹万强.过量PbO、MgO对PMN-PT陶瓷介电性能的影响[J].湖北大学学报(自然科学版),2006,28(3):263-265. |
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| 作者姓名： | 刘霞 曹万强 |
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| 作者单位： | 湖北大学物理学与电子科学技术学院 湖北武汉430062 |
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| 基金项目： | 湖北大学校科研和教改项目
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湖北省创新群体基金 |
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| 摘 要： | 为减少焦绿石相,采用二次合成法制备0.67PMN-0.33PT陶瓷,研究过量PbO、MgO对0.67PMN-0.33PT陶瓷结构和介电性能的影响.结果表明,过量PbO和MgO都能减少介电损耗,但是过量PbO同时降低了介电常数.过量PbO和过量MgO对样品的相变温度Tm没有影响.
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| 关 键 词： | PMN-PT陶瓷 介电性能 微观结构 弥散相变 |
| 文章编号： | 1000-2375(2006)03-0263-03 |
| 收稿时间： | 11 11 2005 12:00AM |
| 修稿时间： | 2005年11月11 |
The effect of excess PbO and MgO on dielectric property of PMN-PT |
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| LIU Xia,CAO Wan-qiang.The effect of excess PbO and MgO on dielectric property of PMN-PT[J].Journal of Hubei University(Natural Science Edition),2006,28(3):263-265. |
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| Authors: | LIU Xia CAO Wan-qiang |
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| Institution: | School of Physics and Electronic Technology, Hubei University, Wuhan 430062, China |
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| Abstract: | To reduce the pyrochlore phase,0.67PMN-0.33PT was prepared by the columbite method and excess PbO and MgO were added.The samples were studied about the microstructure,the microwave dielectric constant.It was found that both excess PbO and MgO could reduce dielectric loss.But the samples with excess PbO had low dielectric constant simultaneity,whether excess PbO or MgO doesn't influence the transition temperature T_(m). |
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| Keywords: | PMN-PT ceramics dielectric microstructure diffuse phase transition |
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