MgO掺杂对氧化锌线性陶瓷电阻的影响
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摘要
利用固相烧结法制备出基础配方为ZnO-Al_2O_3-MgO-Fe_2O_3-TiO_2-SiO_2的ZnO线性陶瓷电阻。研究了MgO掺杂量对ZnO线性陶瓷电阻微观结构、阻抗、阻温特性和阻频特性的影响。结果表明:在MgO掺杂量为5%(质量分数)时,ZnO线性陶瓷电阻的综合性能最好,其晶粒尺寸较为均匀,相对密度最高,电阻率为256 647Ω·cm,非线性系数为1.03,阻温系数为-5.45×10~(–3)/℃。
The zinc oxide(ZnO) linear ceramic resistance was synthesized from ZnO-Al_2O_3-MgO-Fe_2O_3-TiO_2-SiO_2 via solid-state sintering. The effect of MgO doping on the microstructure, impedance, temperature-resistance characteristics and impedance-frequency characteristics was investigated. The results show that the ZnO linear ceramic resistance doping with 5%MgO has the optimum comprehensive performance. This resistance synthesized has relatively uniform grain size, maximum relative density, resistivity of 256 647 Ω·cm·cm, nonlinear coefficient of 1.03, and resistance temperature coefficient of -5.45×10~(–3)/℃.
The zinc oxide(ZnO) linear ceramic resistance was synthesized from ZnO-Al_2O_3-MgO-Fe_2O_3-TiO_2-SiO_2 via solid-state sintering. The effect of MgO doping on the microstructure, impedance, temperature-resistance characteristics and impedance-frequency characteristics was investigated. The results show that the ZnO linear ceramic resistance doping with 5%MgO has the optimum comprehensive performance. This resistance synthesized has relatively uniform grain size, maximum relative density, resistivity of 256 647 Ω·cm·cm, nonlinear coefficient of 1.03, and resistance temperature coefficient of -5.45×10~(–3)/℃.
引文
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[13]PENG Z,FU X,ZANG Y,et al.Influence of Fe2O3 doping on microstructural and electrical properties of ZnO-Pr6O11 based varistor ceramic materials[J].J Alloy Compd,2010,508(2):494-499.
[14]FU Q,CHEN T,YE X,et al.ZnO varistor ceramics prepared by the reduction-reoxidation method[J].J Eur Ceram Soc,2015,35(11):3025-3031.
[15]HEYWANG W.Resistivity anomaly in doped barium titanate[J].Am Ceram Soc,2010,47(10):488-490.
[16]IVON A I,GLOT A B,LAVROV R I,et al.Temperature dependence of zinc oxide grain resistivity in ZnO varistor ceramics[J].J Alloy Compd,2016,656:740-744.
[17]杨仲江,张帐,柴健,等.氧化锌压敏电阻老化过程中非线性系数变化的研究[J].电子元件与材料,2011,30(9):27-30.YANG Zhongjiang,ZHANG Zhang,CHAI Jian,et al.Electr Compon Mater(in Chinese),2011,30(9):27-30.
[18]FENG J Y,CHAN C M.Positive and negative temperature coefficient effects of complex ceramics[J].Polym Mater,2000,41(2):7279-7282.
[2]彭济南,叶德平,陈敬.氧化锌线性电阻中性点接地电阻器[J].电瓷避雷器,2001(6):15-18.PENG Jinan,YE Deping,CHEN Jing.Insulators and Suger Arresters(in Chinese),2001(6):15-18.
[3]程杰,季幼章.高能ZnO线性电阻的研究[J].电瓷避雷器,1993(1):40-42.CHENG Jie,JI Youzhang.Insulators and Suger Arresters(in Chinese),1993(1):40-42.
[4]程杰,袁方利.一种新型的电阻元器件高能ZnO线性电阻的应用[J].电瓷避雷器,1992(5):58-59.CHENG Jie,YUAN Fangli.Insulators and Suger Arresters(in Chinese),1992(5):58-59.
[5]ZHU J F,ZHOU Y,YANG H B,et al.Influence of A12O3 doping on the microstructure and current-voltage characteristics of ZnO-Based linear resistance ceramics[J].Key Eng Mater,2011,480/481:556-559.
[6]董玉娟,张坷,叶效,等.A12O3掺杂ZnO线性电阻的性能及其显微组织[J].江苏大学学报:自然科学版,2014,35(2):220-223.DONG Yujuan,ZHANG Ke,YE Xiao,et al.J Jiangsu Univ:Nat Sci Ed(in Chinese),2014,35(2):220-223.
[7]何日青,杨传仁,陈宏伟,等.MgO掺杂对ZnO基线性电阻陶瓷性能的影响[J].压电与声光,2013(4):592-594,598.HE Riqing,YANG Chuanren,CHEN Hongwei,et al.J Piezoelect Acoustoopt(in Chinese),2013(4):592-594,598.
[8]LU Z Y,CAI Y Y,CHEN Z W,et al.Effects of Fe impurity on performance of Zn O varistors[J].Rare Met Mater Eng,2007,36:187-190.
[9]BACON G E,WELCH A J E.An X-ray examination of the spinel-type mixed oxide MgFeAlO4[J].Acta Crystallogr Sect A,1954,7(4):361-363.
[10]CHEN N B,SUI C H.Recent progress in research on MgxZn1?x Oalloys[J].Mater Sci Eng B:Solid-State Mater Adv Technol,2006,126(1):16-21.
[11]LI T Y,WANG H Q,HUA Z Q,et al.Densification and grain growth of CuO-doped Pr6O11 varistors[J].Ceram Int 2010,36(5):1511-1516.
[12]HAN J,MANTAS P Q,SENOS A M R.Grain growth in Mn-doped ZnO[J].J Eur Ceram Soc,2000,20(16):2753-2758.
[13]PENG Z,FU X,ZANG Y,et al.Influence of Fe2O3 doping on microstructural and electrical properties of ZnO-Pr6O11 based varistor ceramic materials[J].J Alloy Compd,2010,508(2):494-499.
[14]FU Q,CHEN T,YE X,et al.ZnO varistor ceramics prepared by the reduction-reoxidation method[J].J Eur Ceram Soc,2015,35(11):3025-3031.
[15]HEYWANG W.Resistivity anomaly in doped barium titanate[J].Am Ceram Soc,2010,47(10):488-490.
[16]IVON A I,GLOT A B,LAVROV R I,et al.Temperature dependence of zinc oxide grain resistivity in ZnO varistor ceramics[J].J Alloy Compd,2016,656:740-744.
[17]杨仲江,张帐,柴健,等.氧化锌压敏电阻老化过程中非线性系数变化的研究[J].电子元件与材料,2011,30(9):27-30.YANG Zhongjiang,ZHANG Zhang,CHAI Jian,et al.Electr Compon Mater(in Chinese),2011,30(9):27-30.
[18]FENG J Y,CHAN C M.Positive and negative temperature coefficient effects of complex ceramics[J].Polym Mater,2000,41(2):7279-7282.