PbO掺杂对(Ba_(0.85)Ca_(0.15))(Zr_(0.10)Ti_(0.90))O_3陶瓷电学性能的影响研究
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摘要
采用固相反应法制备(Ba_(0.85)Ca_(0.15-x)Pb_x)(Zr_(0.1)Ti_(0.9))O_(3 )(x=0.00;0.06;0.09;0.12;0.15)压电陶瓷材料,研究PbO掺杂量对BCZT陶瓷结构和电学性能的影响。结果表明:PbO掺杂不会改变BCZT陶瓷的相结构,但可降低BCZT陶瓷的烧结温度至1250℃。此外,PbO掺杂可提高BCZT陶瓷的居里温度和介电常数温度稳定性,当掺杂量为0.15%时,陶瓷的居里温度为135℃,介电常数变化率在-15%～+15%之间波动,剩余极化强度P_r=4.13μC·cm~2,压电常数d_(33)=445 pC/N。
The(Ba_(0.85)Ca_(0.15-x)Pb_x)(Zr_(0.1)Ti_(0.9))O_(3 )(x=0.00;0.06;0.09;0.12;0.15)ceramics were prepared by the solid-state reaction technique.The structure and electrical properties were investigated in detail.The results suggest that the introduction of PbO on BCZT ceramics has no influence on the phase structure,but could decrease the sintering temperature to 1250℃.According to the results of electrical properties,the Curie temperature and dielectric temperature characteristic have been substantial improvement.When the doping content reaches 15%,the samples have displayed excellent values,and the results are separately as: Tc=130~( o)C,Δε/ε=-15%～+15%,P_r=4.13μC·cm~2,d_(33)=445 pC/N.
The(Ba_(0.85)Ca_(0.15-x)Pb_x)(Zr_(0.1)Ti_(0.9))O_(3 )(x=0.00;0.06;0.09;0.12;0.15)ceramics were prepared by the solid-state reaction technique.The structure and electrical properties were investigated in detail.The results suggest that the introduction of PbO on BCZT ceramics has no influence on the phase structure,but could decrease the sintering temperature to 1250℃.According to the results of electrical properties,the Curie temperature and dielectric temperature characteristic have been substantial improvement.When the doping content reaches 15%,the samples have displayed excellent values,and the results are separately as: Tc=130~( o)C,Δε/ε=-15%～+15%,P_r=4.13μC·cm~2,d_(33)=445 pC/N.
引文
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[3]Tian Y,Chao X L,Yang Z P,et al.Phase transition behavior and large piezoelectricity near the morphotropic phase boundary of lead-free(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 ceramics[J].J Am Ceram Soc,2013,96(2):496-451.
[4]Gao J H,Xue D Z,Wang Y,et al.Microstructure basis for strong piezoelectricity in Pb-free Ba(Zr0.2Ti0.8)O3-(Ba0.7Ca0.3)TiO3 ceramics[J].Appl Phys Lett,2011,99:092901.
[5]Gao J H,Hu X H,Zhang L,et al.Major contributor to the large piezoelectric response in(1-x)Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 ceramics:domain wall motion[J].Appl Phys Lett,2014,104:252909 .
[6]Damianovic D,Biancoli A,Batooli L L,et al. Elastic,dielectric,and piezoelectric anomalies and raman spectroscopy of 0.5Ba(T8Zr0.2)O3-0.5(Ba0.7Ca0.3)TiO3[J].Appl Phys Lett,2012,100:192907i0.
[7]陈威.温度稳定型钛酸锶钡基弛豫铁电体陶瓷介电性能的研究[D].武汉:湖北大学 2013,15-20.
[8]Wang X F,Liang P F,Yang Z P,et al.Phase evolution and enhanced electrical properties of(Ba0.85Ca0.15-xYx)(Zr0.1Ti0.9)O3 lead-free ceramics[J].J Mater Sci:Mater Electron,2015,26:5217-5225.
[9]彭森,吴孟强,黄同成,等.SnO2掺杂对BMN陶瓷结构及介电性能的影响[J].材料导报:研究篇,2017,6(31):21-25.
[10]张浩,郑德一,胡顺敏,等.SrCO3掺杂对PMN-PMnN-PZT-Ce压电陶瓷储能及介电弛豫性能的影响[J].材料导报:研究篇,2017,3(31):11-15.
[11]钟维烈.铁电体物理学[M].北京:科学出版社,1996:320-331
[12]Filippov S E,Voronts A A,Brill O E.Microgeomettry,piezoelectric sensitivity and anisotropy of properties in porous materials based on Pb(Zr,Ti)O3[J].Func Mater Lett,2014,7(3):1450029.
[13]候育冬,崔磊,王赛,等.BiAlO3基高温无铅压电陶瓷的研究进展[J].无机材料学报,2010,25(3):225-229.
[14]Tian Y,Chao X L,Yang Z P,et al.Phase transition behavior and electrical properties of lead-free(Ba1-xCax)(Zr0.1Ti0.9)O3 piezoelectric ceramics[J].J Appl Phys,2013,113:184107.
[15]Randall C A,Eitel R,Shrout T R,et al.Structure and property investigation of a Bi-based perovskite solid solution:(1-x)Bi(Ni1/2Ti1/2)O3-xPbTiO3 [J].J Appl Phys,2005,98:034108.