| 烧结助剂引入方式对 (Bi1.5Zn0.5)(Zn0.5Nb1.5)O7陶瓷性能的影响 |
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| 引用本文： | 金彪,李谦,黄金亮,顾永军.烧结助剂引入方式对 (Bi1.5Zn0.5)(Zn0.5Nb1.5)O7陶瓷性能的影响[J].压电与声光,2012,34(1):125-128. |
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| 作者姓名： | 金彪 李谦 黄金亮 顾永军 |
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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 |
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| 基金项目： | 河南省教育厅自然科学基金资助项目 |
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| 摘 要： | 分别以液相包覆法和固相混合法引入助烧剂CuO制备(Bi1.5Zn0.5)(Zn0.5Nb1.5)O7(BZN)陶瓷。采用X线衍射、扫描电镜及电感-电容-电阻测试仪等对其烧结特性、相结构及介电性能进行了研究。液相包覆法可减少助烧剂的加入量从而降低其对陶瓷介电性能的恶化。CuSO4溶液的浓度为0.5mol/L,900℃烧结3h所制得(Bi1.5Zn0.5)(Zn0.5Nb1.5)O7陶瓷的介电常数εr=161,介电损耗tanδ=0.005,τf=-398×10-6/℃(1MHz)。
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| 关 键 词： | 微波介质陶瓷 低温烧结 介电性能 液相包覆 |
Effect of Different Doping Method of Sintering Additive on Properties of (Bi1.5Zn0.5)(Zn0.5Nb1.5)O7 Ceramics |
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| JIN Biao,LI Qian,HUANG Jinliang and GU Yongjun.Effect of Different Doping Method of Sintering Additive on Properties of (Bi1.5Zn0.5)(Zn0.5Nb1.5)O7 Ceramics[J].Piezoelectrics & Acoustooptics,2012,34(1):125-128. |
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| Authors: | JIN Biao LI Qian HUANG Jinliang and GU Yongjun |
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| Institution: | (School of Material Science and Engineering,Henan University of Science and Technology,Luoyang 471003,China) |
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| Abstract: | (Bi1.5Zn0.5)(Zn0.5Nb1.5)O7(BZN)ceramics were prepared with different additives of CuO by the liquid coating method and the solid phase mix method.The sintering behavior,phase structure and dielectric properties of ceramics were investigated by X-ray diffraction,scanning electron microscopy and inductance-capacitance resistance analysis.The liquid coating method can reduce the amount of sintering aid and minimized the negative impact of sintering aid on dielectric properties.A ceramic composite which could be sintered well at 900 ℃ for 3 h and showed good dielectric properties of εr=161,tan δ=0.005 and τf=-398×10-6/℃(1 MHz)was obtained when 0.5 mol/L CuSO4 was added to the(Bi1.5Zn0.5)(Zn0.5Nb1.5)O7 ceramic. |
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| Keywords: | microwave dielectric ceramics low temperature sintering dielectric property liquid coating |
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