| 中温烧结PSBN系统铁电陶瓷结构和性能的研究 |
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| 引用本文： | 吴顺华,李力.中温烧结PSBN系统铁电陶瓷结构和性能的研究[J].硅酸盐通报,1999,18(2):24-28. |
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| 作者姓名： | 吴顺华 李力 |
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| 作者单位： | 天津大学电子信息工程学院,300072 |
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| 摘 要： | 本文研究了中温烧结ＰｂＯ－ＳｒＯ－ＢａＯ－Ｎｂ２Ｏ５（ＰＳＢＮ）系统铁电陶瓷介电性能，通过ＸＲＤ分析确定了在主晶相为具有钨青铜结构的Ｐｂ０．７Ｂａ０．３Ｎｂ２Ｏ６（ＰＢＮ）Ｂａ０．２７Ｓｒ０．７５Ｎｂ２Ｏ５．７８（ＢＳＮ）；分析了添加剂ＭｎＣＯ３，ＴｉＯ２，Ｆｅ２Ｏ３，（ＭｇＣＯ３）４．Ｍｇ（ＯＨ）２．５Ｈ２Ｏ对ＰＳＢＮ系统铁电陶瓷介电性能的影响，由于这些添加剂的作用使该系统铁电陶瓷介电系数提高，
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| 关 键 词： | 铁电陶瓷 介电性能 钨青铜结构 |
Study of Dielectric Properties of PSBN System Ferroelectric Ceramic Sintered at Intermediate Temperature |
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| Wu Shunhua,Li li.Study of Dielectric Properties of PSBN System Ferroelectric Ceramic Sintered at Intermediate Temperature[J].Bulletin of the Chinese Ceramic Society,1999,18(2):24-28. |
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| Authors: | Wu Shunhua Li li |
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| Abstract: | The dielectric properties of PbO-SrO-BaO-Nb2O5(PSBN) system ferroelectric ceramic have been studied in the paper.X-ray diffraction (XRD) shows that its main phase is Pb0.7Ba0.3Nb2O6(PBN),Ba0.27Sr0.75Nb2O5.78(BSN) of tungsten bronze structure.The effects of additives MnCO3TiO2Fe2O3(MgCO3)4Mg(OH)25H2O on the dieletric properties of PSBN system ferroelectric ceramic are analyzed also.In this system,the dielectric constant is increased,Curie range is broadened and moved toward low temperatrue,the insulation resistance is increased and tg is decreased as a result of doping these additives.A ceramic material X7R of high (=4300200)is obstained. |
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| Keywords: | ferroelectric ceramic dielectric properties tungsten bronze structure |
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