| Bi2O3掺入对CLST微波介质陶瓷性能的影响 |
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| 引用本文： | 黄永峰,李谦,黄金亮,龙永强.Bi2O3掺入对CLST微波介质陶瓷性能的影响[J].电子元件与材料,2006,25(12):51-53. |
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| 作者姓名： | 黄永峰 李谦 黄金亮 龙永强 |
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| 作者单位： | 河南科技大学材料科学与工程学院,河南,洛阳,471003;河南科技大学材料科学与工程学院,河南,洛阳,471003;河南科技大学材料科学与工程学院,河南,洛阳,471003;河南科技大学材料科学与工程学院,河南,洛阳,471003 |
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| 基金项目： | 河南省高校创新人才培养项目;河南科技大学校科研和教改项目 |
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| 摘 要： | 研究了Bi2O3掺入对CaO-Li2O-Sm2O3-TiO2(简写为CLST)系微波介质陶瓷介电性能的影响。用XRD和SEM研究其晶体结构及微观形貌。结果表明:Bi2O3掺入能显著降低CLST陶瓷的烧结温度,由1300℃降至1200℃,1200℃烧结2h后,仍形成了斜方钙钛矿结构,但原有金红石相消失。掺入5%(质量分数)Bi2O3的CLST陶瓷取得了较好的介电性能:εr为93,tanδ为0.0078,τf为–29×10–6℃–1。
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| 关 键 词： | 无机非金属材料 微波介质陶瓷 烧结助剂 烧结温度 介电性能 |
| 文章编号： | 1001-2028（2006）12-0050-03 |
| 收稿时间： | 2006-07-19 |
| 修稿时间： | 2006-07-19 |
Effects of Bi2O3 Addtion on Dielectric Properties of CaO-Li2O- Sm2O3-TiO2 Microwave Dielectric Ceramics |
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| HUANG Yong-feng,LI Qian,HUANG Jin-liang,LONG Yong-qiang.Effects of Bi2O3 Addtion on Dielectric Properties of CaO-Li2O- Sm2O3-TiO2 Microwave Dielectric Ceramics[J].Electronic Components & Materials,2006,25(12):51-53. |
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| Authors: | HUANG Yong-feng LI Qian HUANG Jin-liang LONG Yong-qiang |
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| Abstract: | Effects of Bi2O3 on the dielectric properties of 16CaO-9Li2O-12Sm2O3-63TiO2 based microwave dielectric ceramics were investigated. The crystalline structure and micromorphology were studied by XRD and SEM, respectively. Results show that the major phase of CLST ceramics is perovskite, however rutile phase is eliminated。The sintering temperature of the specimens could be reduced from 1 300 ℃ to 1 200 ℃ without the degradation of the microwave dielectric properties of the specimens. The specimens with 5 % Bi2O3 sintered at 1 200 ℃ for 2 h showed εr of 93, tanδ of 0.007 8, and τf of –29×10–6 ℃–1. |
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| Keywords: | inorganic non-metallic materials microweve dielectric ceramic sintering additives sintering temperature dielectric properties |
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