| Ba/Ti摩尔比对B位钙掺杂钛酸钡性能的影响 |
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| 引用本文： | 李艳霞,姚熹,张良莹.Ba/Ti摩尔比对B位钙掺杂钛酸钡性能的影响[J].电子元件与材料,2004,23(5):12-14. |
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| 作者姓名： | 李艳霞 姚熹 张良莹 |
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| 作者单位： | 同济大学功能材料研究所,上海,200092;同济大学功能材料研究所,上海,200092;同济大学功能材料研究所,上海,200092 |
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| 基金项目： | 上海市重点学科项目资助(0500121001) |
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| 摘 要： | 研究了Ba/Ti摩尔比、B位钙掺杂量和烧结气氛对钛酸钡陶瓷的致密化、微观结构、电阻率以及介电性能的影响。结果表明,随着Ba/Ti摩尔比的增加,样品密度增大,陶瓷晶粒变小,致密化程度增加,材料的居里点向低温方向移动,漏导损耗减小,电阻率增加。而随着钙掺杂量的增加,样品密度减小,孔洞增大增多,漏导损耗增大,电阻率减小。
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| 关 键 词： | 钛酸钡 Ba/Ti摩尔比 B位掺杂 电阻率 介电性能 |
| 文章编号： | 1001-2028(2004)05-0012-03 |
The Influence of Ba/Ti Mole Ratio on the Properties of Ca Doped in Barium Titanate B-sites |
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| LI Yan-xia,YAO Xi,ZHANG Liang-ying Functional Materials Research Laboratory,Tongji University,Shanghai ,China.The Influence of Ba/Ti Mole Ratio on the Properties of Ca Doped in Barium Titanate B-sites[J].Electronic Components & Materials,2004,23(5):12-14. |
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| Authors: | LI Yan-xia YAO Xi ZHANG Liang-ying Functional Materials Research Laboratory Tongji University Shanghai China |
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| Affiliation: | LI Yan-xia,YAO Xi,ZHANG Liang-ying Functional Materials Research Laboratory,Tongji University,Shanghai 200092,China |
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| Abstract: | The influence of Ba/Ti mole ratio on the properties of Ca doped in barium titanate B-sites was investigated. The
influence of Ba/Ti mole ratio, substitution number and sintering atmosphere on densification, microstructure, resistivity and the
dielectric property of the as-fired ceramics were studied profoundly. With Ba/Ti mole ratio increasing, density increased, grain
size decreased, the Curie temperature shifted from high temperature to low temperature and leakage conductivity decreased.
And with the dopant amont increasing, density decreased, the holes increased and leakage conductivities increased. |
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| Keywords: | BaTiO_3 Ba/Ti Mole ratio B-sites doping resistivity dielectric properties |
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