| 预烧温度对CaO-Li_2O-Sm_2O_3-TiO_2微波介质陶瓷介电性能的影响 |
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| 引用本文： | 胡景川,邓昭平,杨敬义,刘青,陈建利.预烧温度对CaO-Li_2O-Sm_2O_3-TiO_2微波介质陶瓷介电性能的影响[J].广东微量元素科学,2010,17(1):46-51. |
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| 作者姓名： | 胡景川 邓昭平 杨敬义 刘青 陈建利 |
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| 作者单位： | 1. 成都理工大学材料与化学化工学院,四川,成都,610059
2. 成都顺康电子有限责任公司,四川,成都,611731 |
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| 基金项目： | 四川省应用科研基金资助项目,编号:04JY029-008-2 |
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| 摘 要： | 用固相反应法制备了CaO-Li2O-Sm2O3-TiO2(CLST)微波介质陶瓷。通过改变预烧温度(1 000~1 200℃)研究其对CLST微波介质陶瓷介电性能的影响。研究过程中,对预烧粉体与烧结陶瓷进行XRD与SEM分析,对陶瓷的介电性能εr、Q、τf进行了测试。结果表明,预烧温度对CLST微波介质陶瓷介电性能有较大影响,在预烧温度1 150℃,烧结温度1 340℃时可获得较好的介电性能:εr=112,Q=845,τf=52×10-6/℃。
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| 关 键 词： | 微波介质陶瓷 CaO—Li2O -Sm2O3-TiO2 预烧温度 介电性能 |
Effects of Calcining Temperatures on Dielectric Properties of CaO - Li_2O - Sm_2O_3- TiO_2 Microwave Dielectric Ceramics |
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| HU Jingchuan,DENG Zhaoping,YANG Jingyi,LIU Qing,CHEN Jianli.Effects of Calcining Temperatures on Dielectric Properties of CaO - Li_2O - Sm_2O_3- TiO_2 Microwave Dielectric Ceramics[J].Trace Elements Science,2010,17(1):46-51. |
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| Authors: | HU Jingchuan DENG Zhaoping YANG Jingyi LIU Qing CHEN Jianli |
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| Institution: | 1.College of Materials and Chemistry & Chemical Engineering;Chengdu University of Technology;Chengdu 610059;China;2.Chengdu Shunkang Electronics Co.Ltd;Chengdu 611731;China |
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| Abstract: | CaO - Li_2O - Sm_2O_3- TiO_2 microwave dielectric ceramics were prepared by solid state reaction technique. The effects of calcining temperatures (1 000 ～ 1 200℃) on the dielectric properties were studied. The crystalline structures and microstructures were detected by XRD and SEM in the study. The dielectric constant, the product of quality factor and the temperature coeficient of resonant frequence was tested. The results indicate that effects of calcining temperatures on dielectric properties were evident, a maximum ε_r value of 112, a maximum Q value of 845 and a minimum T_f value of 52 × 10~(-6)/℃ at calcining temperature of 1 150 ℃ and sintering temperature of 1 340 ℃. |
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| Keywords: | microwave dielectric cermics CaO-Li2O-Sm2O3-TiO2 calcining temperatures dielectric properties |
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