| 添加CuO对Ba_(3.99)Sm_(9.34)Ti_(18)O_(54)陶瓷烧结及微波介电性能的影响 |
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| 引用本文： | 方志远,李兆喜,沈春英,丘泰.添加CuO对Ba_(3.99)Sm_(9.34)Ti_(18)O_(54)陶瓷烧结及微波介电性能的影响[J].电子元件与材料,2010,29(10). |
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| 作者姓名： | 方志远 李兆喜 沈春英 丘泰 |
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| 作者单位： | 南京工业大学材料科学与工程学院,江苏南京,210009 |
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| 摘 要： | 采用传统固相工艺制备了Ba3.99Sm9.34Ti18O54(BSTO)微波介质陶瓷,研究了烧结助剂CuO对BSTO的结构及介电性能的影响。结果表明,添加CuO能较好促进BSTO晶粒致密化,降低烧结温度约140℃。当添加质量分数1.0%的CuO时,1220℃保温3h烧结的BSTO样品的介电性能较好:εr=86.87,Q·f=5138GHz(f=4.95GHz),τf=–10.84×10–6℃–1。
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| 关 键 词： | 微波介质陶瓷 低温烧结 BSTO 微波介电性能 |
Effect of CuO additive on the sintering and microwave dielectric properties of Ba3.99Sm9.34Ti18O54 ceramics |
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| FANG Zhiyuan,LI Zhaoxi,SHEN Chunying,QIU Tai.Effect of CuO additive on the sintering and microwave dielectric properties of Ba3.99Sm9.34Ti18O54 ceramics[J].Electronic Components & Materials,2010,29(10). |
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| Authors: | FANG Zhiyuan LI Zhaoxi SHEN Chunying QIU Tai |
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| Abstract: | Ba3.99Sm9.34Ti18O54 (BSTO) microwave dielectric ceramics were prepared by conventional solid phase method. The effect of CuO additive on the structure and dielectric properties of BSTO ceramics was investigated. The results show that CuO additive reduces the sintering temperature by about 140 ℃ and improve the densification of BSTO ceramic grain. BSTO ceramic samples (w(CuO)=1.0%) sintered at 1 220 ℃ for 3 h possess good dielectric properties of εr=86.87,Q·f =5 138 (f = 4.95 GHz) and τf = –10.84×10–6 ℃–1. |
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| Keywords: | BSTO |
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