| (RbBi)1/2MoO4陶瓷微波介电性能的远红外反射谱研究 |
| |
| 引用本文： | 王秋萍,刘汉臣.(RbBi)1/2MoO4陶瓷微波介电性能的远红外反射谱研究[J].光谱学与光谱分析,2012,32(9):2382-2384. |
| |
| 作者姓名： | 王秋萍 刘汉臣 |
| |
| 作者单位： | 1. 西安工程大学理学院,陕西西安710048;西安交通大学电子材料与器件研究所,电子陶瓷与器件教育部重点实验室,陕西西安710049
2. 西安工程大学理学院,陕西西安,710048 |
| |
| 基金项目： | 国家自然科学基金项目，国家重点基础研究发展计划(973)项目 |
| |
| 摘 要： | 采用固相反应法制备了(RbBi)1/2MoO4陶瓷样品。室温下测量了(RbBi)1/2MoO4的红外反射谱,观察到15个振动模式;利用Kramers-Kronig(K-K)关系对样品的红外反射谱进行数据处理,获得材料的光频介电常数ε∞=2.17,微波频段的外推值为20.56,略小于实际测量值21.4;获得材料的本征品质因数Q×f为11 790GHz,高于实际测量值6 200GHz,说明陶瓷材料的品质因数还有较大提升空间。
|
| 关 键 词： | 微波介电陶瓷 (RbBi)1/2MoO4 红外反射谱 介电常数 品质因数 |
Study on Far-Infrared Reflectivity Spectra of Microwave Dielectric Ceramic (RbBi) 1/2 MoO4 |
| |
| WANG Qiu-ping
,
LIU Han-chen.Study on Far-Infrared Reflectivity Spectra of Microwave Dielectric Ceramic (RbBi) 1/2 MoO4[J].Spectroscopy and Spectral Analysis,2012,32(9):2382-2384. |
| |
| Authors: | WANG Qiu-ping LIU Han-chen |
| |
| Institution: | 1.School of Science,Xi’an Polytechnic University,Xi’an 710048,China 2.Electronic Materials Research Laboratory,Key Laboratory of the Ministry of Education,Xi’an Jiaotong University,Xi’an 710049,China |
| |
| Abstract: | The(RbBi)1/2MoO4 ceramic was prepared via solid state reaction method.The room temperature far-infrared reflectivity spectra were measured and 15 vibration modes were observed.Kramers-Kronig(K-K) relationship was employed to fit infrared spectra.The optical frequency permittivity ε∞ is equal to 2.17 for the dielectric materials,and the extrapolated value to microwave frequency(at about 9 GHz) is 20.56 and it is slightly smaller than the actual measured value ～21.4.The calculated value of quality factor(Q×f) is 11 790 GHz,which is higher than the actual measured value ～6 200 GHz,and it can be deduced that the quality factor of the(RbBi)1/2MoO4 ceramic material has large room for improvement. |
| |
| Keywords: | Microwave dielectric ceramics (RbBi)1/2MoO4 Infrared reflectivity spectrum Permittivity Quality factor |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
