| CaTiO3:Zn纳米粉体的溶胶凝胶法制备及性能研究 |
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| 引用本文： | 黄万群,张启龙,杨辉,申乾宏. CaTiO3:Zn纳米粉体的溶胶凝胶法制备及性能研究[J]. 电子元件与材料, 2012, 0(4): 7-9 |
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| 作者姓名： | 黄万群 张启龙 杨辉 申乾宏 |
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| 作者单位： | 浙江大学材料科学与工程学系 |
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| 基金项目： | 国家科技支撑计划资助项目(No.2009BAG12A07);浙江省创新团队项目资助(No.2011R09010) |
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| 摘 要： | 采用溶胶凝胶法制备了CaTiO3∶Zn纳米粉体,研究了所制粉体的微观结构及性能。结果表明,所制粉体粒径约50 nm,主晶相为CaTiO3,Zn以Zn2TiO4形式存在于晶相中。1 150℃下烧结所得CaTiO3∶Zn纳米粉体性能较优:比固相法的烧结温度降低约250℃,相对介电常数εr=155,品质因数Q.f提高至6 633 GHz。
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| 关 键 词： | CaTiO3∶Zn 溶胶凝胶法 纳米粒子 介电性能 |
Preparation and properties of CaTiO3:Zn nanoparticles based on sol-gel method |
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| HUANG Wanqun,ZHANG Qilong,YANG Hui,SHEN Qianhong. Preparation and properties of CaTiO3:Zn nanoparticles based on sol-gel method[J]. Electronic Components & Materials, 2012, 0(4): 7-9 |
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| Authors: | HUANG Wanqun ZHANG Qilong YANG Hui SHEN Qianhong |
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| Affiliation: | (Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | Nano-sized CaTiO3∶Zn particles were successfully synthesized through sol-gel technique.The microstructure and other properties of the prepared nano particles were investigated.The average particle size of the CaTiO3∶Zn powders calculated from TEM micrograph is about 50 nm.CaTiO3 is formed as the major phase,and the added Zn exists as Zn2TiO4 phase.The CaTiO3∶Zn ceramics can be well sintered at 1 150 ℃,about 250 ℃ lower than those of ceramics obtained by conventional solid state method.The sintered CaTiO3∶Zn ceramics possess a εr of 155,and a Q?f value of 6 633 GHz which is greatly improved. |
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| Keywords: | CaTiO3∶Zn sol-gel technique nanoparticles dielectric properties |
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