| 甘氨酸-硝酸盐燃烧法制备Ca0.3Sr0.7TiO3介电质材料 |
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| 引用本文： | 严育通,景燕,姚颖,贾永忠,孙进贺,马军.甘氨酸-硝酸盐燃烧法制备Ca0.3Sr0.7TiO3介电质材料[J].盐湖研究,2008,16(2):37-40. |
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| 作者姓名： | 严育通 景燕 姚颖 贾永忠 孙进贺 马军 |
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| 作者单位： | 1. 中国科学院青海盐湖研究所,青海 西宁 810008;中国科学院研究生院,北京 100049
2. 中国科学院青海盐湖研究所,青海 西宁,810008 |
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| 基金项目： | 中国科学院"西部之光"人才培养计划 |
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| 摘 要： | 采用甘氨酸-硝酸盐燃烧法,以硝酸锶、硝酸钙、钛酸丁酯和甘氨酸为原料合成了Ca0·3Sr0·7TiO3陶瓷粉体。对影响粉体特性的两个主要因素pH值和原料配比进行了讨论。XRD结果表明,所得粉体结晶好,纯度高。用所得粉体经1420℃烧结成瓷,介电频率特性测试结果表明,介电常数随频率单调递减,50kHz到10MHz范围内,介电常数基本稳定在140~150之间。介电损耗随着频率的增大先减小后增大,最小介电损耗在1MHz下为0·0243。
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| 关 键 词： | Ca0·3Sr0·7TiO3 介电性能 燃烧法 甘氨酸 |
| 文章编号： | 1008-858X(2008)02-0037-04 |
| 修稿时间： | 2004年5月10日 |
The Preparation of Dielectric Material Ca0.3Sr0.7TiO3 by Glycine-nitrate Combustion |
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| YAN Yu-tong,JING Yan,YAO Ying,JIA Yong-zhong,SUN Jin-he,MA Jun.The Preparation of Dielectric Material Ca0.3Sr0.7TiO3 by Glycine-nitrate Combustion[J].Journal of Salt Lake Research,2008,16(2):37-40. |
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| Authors: | YAN Yu-tong JING Yan YAO Ying JIA Yong-zhong SUN Jin-he MA Jun |
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| Abstract: | Ceramic powders of Ca0.3Sr0.7TiO3 have been prepared by using strontium nitrate, calcium nitrate, tetra-n-butyl titanate and glycine via glycine-nitrate combustion synthesis. The pH value and ratio of the starting materials were discussed. The XRD patterns showed that products were good crystallite and purity. After calcining at 1 420 ℃, the result of dielectric testing showed that dielectric constant was decreasing while frequency was increasing. On the range of 50 kHz to 100 kHz, the dielectric constant reached a stable level between 140 to 150. Dielectric loss decreased first and then increased with the increasing of frequency. The smallest value of dielectric loss is 0.024 3 at 1 MHz. |
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| Keywords: | Ca0 3Sr0 7TiO3 Dielectric properties Combustion synthesis Glycine |
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