| 掺杂Bi_2O_3对Ba_4Sm_(28/3)Ti_(18)O_(54)微波介质陶瓷性能的影响 |
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| 引用本文： | 李斌,张其土,万慧荣.掺杂Bi_2O_3对Ba_4Sm_(28/3)Ti_(18)O_(54)微波介质陶瓷性能的影响[J].电子元件与材料,2007,26(3):44-46. |
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| 作者姓名： | 李斌 张其土 万慧荣 |
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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： | 以Ba4Sm28/3Ti18O54微波介质陶瓷为基础,掺杂Bi2O3进行协调改性,形成固溶式为Ba4(Sm1–yBiy)28/3Ti18O54的结构。结果表明,掺杂Bi2O3能很好地把Ba4Sm28/3Ti18O54微波介质陶瓷的烧结温度降低至1260℃,当y=0.15时,能得到介电性能较佳的微波介质陶瓷:εr约为81,tanδ约为5×10–4,τf为–21×10–6℃–1。
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| 关 键 词： | 无机非金属材料 微波介质陶瓷 Bi2O3 介电常数 介质损耗 |
| 文章编号： | 1001-2028（2007）03-0044-03 |
| 修稿时间： | 2006-11-18 |
Effects of Bi2O3 doping on the performance of Ba4Sm28/3Ti18O54 microwave dielectric ceramics |
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| LI Bin,ZHANG Qi-tu,WAN Hui-rong.Effects of Bi2O3 doping on the performance of Ba4Sm28/3Ti18O54 microwave dielectric ceramics[J].Electronic Components & Materials,2007,26(3):44-46. |
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| Authors: | LI Bin ZHANG Qi-tu WAN Hui-rong |
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| Abstract: | Doped Bi2O3 Ba4Sm28/3Ti18O54 microwave dielectric ceramics were studied in order to improve dielectric performance of the ceramics. The solid solution formula was Ba4(Sm1–yBiy)28/3Ti18O54. The results show that the sintering temperature of Ba4Sm28/3Ti18O54 microwave dielectric ceramics is reduced to 1 260 ℃ effectively by doping Bi2O3. When y = 0.15, the dielectric performance of Ba4Sm28/3Ti18O54 microwave dielectric ceramics is more excellent: εr≈81,tan δ≈5×10–4, τf = –21×10–6℃–1。 |
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| Keywords: | non-metallic inorganic material microwave dielectric ceramics Bi2O3 dielectric constant dielectric loss |
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