| Ba_(0.75)Sr_(0.25)Zr_xTi_(1-x)O_3固溶体的合成、结构与性能 |
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| 引用本文： | 丁士文,翟永青,鲁秀国,王志强,李金龙,李颖.Ba_(0.75)Sr_(0.25)Zr_xTi_(1-x)O_3固溶体的合成、结构与性能[J].河北大学学报(自然科学版),1999(2). |
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| 作者姓名： | 丁士文 翟永青 鲁秀国 王志强 李金龙 李颖 |
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| 作者单位： | 河北大学化学系 |
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| 摘 要： | 在１００℃以下用软化学掺杂方法，合成了一系列Ｂａ０．７５Ｓｒ０．２５ＺｒｘＴｉ１－ｘＯ３固溶体纳米粉末。ＸＲＤ物相分析和ｄ－间距－组成图证明，产品为完全互溶取代固溶体。ＴＥＭ观察，粒子为均匀球形，平均粒径６０ｎｍ，通过制陶实验，分别测定了该系列固溶体的室温介电常数和介电损失，结果发现，用化学方法在ＢａＴｉＯ３中掺入适量锶和锆，引起ｔｃ前移，室温介电常数提高８倍，而介电损失（ｔａｎδ）却下降３倍。
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| 关 键 词： | BaTiO_3固溶体 化学掺杂 介电特性 |
Synthesis Structure and Properties of Ba0.75Sr0.25ZrxTi1-xO3 Solid Solutions |
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| DING
Shi_wen,ZHAI Yong_qing,LU Xiu_guo,WANG Zhi_qiang,LI Jin_long,LI Ying.Synthesis Structure and Properties of Ba0.75Sr0.25ZrxTi1-xO3 Solid Solutions[J].Journal of Hebei University (Natural Science Edition),1999(2). |
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| Authors: | DING
Shi_wen ZHAI Yong_qing LU Xiu_guo WANG Zhi_qiang LI Jin_long LI Ying |
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| Abstract: | A series of
Ba0.75Sr0.25ZrxTi1-xO3(0x0.3) solid solutions were synthesized by means of soft chemical
method at below 100 .XRD and d-spacing-component figures of the series of solid solutions
proved that the compounds are mutual miscible in the solid solutions. Observed through a TEM,
the product is found to have a shape of uniform, substantially spherical particles with an
average particle diameter of 60 nm. The result of preparing ceramics showed that adulterating
with Sr2+ and Zr4+ in pure BaTiO3 phase obviously improved the dielectric constant and
dieletric loss at normal temperature. |
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| Keywords: | BaTiO3 solid solutions chem-adulteration dielectric character |
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