| 不同工序添加MgO的Ba_(0.6)Sr_(0.4)TiO_3陶瓷及其性能 |
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| 引用本文： | 李真,吴昌英,韦高,高峰.不同工序添加MgO的Ba_(0.6)Sr_(0.4)TiO_3陶瓷及其性能[J].电子元件与材料,2009,28(4). |
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| 作者姓名： | 李真 吴昌英 韦高 高峰 |
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| 作者单位： | 1. 西北工业大学,材料学院,陕西,西安,710072
2. 西北工业大学,电子信息学院,陕西,西安,710072 |
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| 基金项目： | 陕西省自然科学基金，西安应用材料创新基金，西北工业大学科技创新基金，西北工业大学研究生创业种子基金 |
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| 摘 要： | 通过在不同工序添加MgO,研究添加方式对Ba0.6Sr0.4TiO3(BSTO)陶瓷微观结构与介电性能的影响。结果表明:在预合成BSTO后加入MgO,样品中有明显的Ba3(VO4)2针状晶粒生成,且随MgO添加量的增多而减少;在预合成BSTO前加入MgO的样品中,该新相极少。MgO添加量相同时,在预合成BSTO前加入,样品的介电常数较低;在预合成BSTO后加入,样品的高频损耗较小,可调性较高,当添加质量分数为15%～25%的MgO,样品在103V/mm电场强度下的可调性均高于20%。
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| 关 键 词： | 无机非金属材料 钛酸锶钡 MgO 可调性 预合成 介电性能 |
Ba_(0.6)Sr_(0.4)TiO_3 ceramics prepared by different MgO-adding processes and its properties |
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| LI Zhen,WU Changying,WEI Gao,GAO Feng.Ba_(0.6)Sr_(0.4)TiO_3 ceramics prepared by different MgO-adding processes and its properties[J].Electronic Components & Materials,2009,28(4). |
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| Authors: | LI Zhen WU Changying WEI Gao GAO Feng |
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| Institution: | LI Zhen1,WU Changying2,WEI Gao2,GAO Feng1 |
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| Abstract: | The effects of MgO-adding methods on the microstructures and dielectric properties of Ba0.6Sr0.4TiO3 ceramics were investigated. The results show that there are obvious Ba3(VO4)2 needlelike grains in the samples prepared by adding MgO after Ba0.6Sr0.4TiO3 powder be pre-synthesized. But there is little Ba3(VO4)2 grains in the samples prepared by adding MgO before Ba0.6Sr0.4TiO3 powder be pre-synthesized. The samples have lower permittivities by adding MgO before Ba0.6Sr0.4TiO3 powder be pre-synthesized, but ... |
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| Keywords: | MgO |
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