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  • ISSN 1006-3080
  • CN 31-1691/TQ

Nb2O5掺杂对SrTiO3陶瓷显微结构和微波介电损耗的影响

韩蕊 李蔚 汪霖 严嵩

韩蕊, 李蔚, 汪霖, 严嵩. Nb2O5掺杂对SrTiO3陶瓷显微结构和微波介电损耗的影响[J]. 华东理工大学学报(自然科学版), 2017, (6): 800-805. doi: 10.14135/j.cnki.1006-3080.2017.06.008
引用本文: 韩蕊, 李蔚, 汪霖, 严嵩. Nb2O5掺杂对SrTiO3陶瓷显微结构和微波介电损耗的影响[J]. 华东理工大学学报(自然科学版), 2017, (6): 800-805. doi: 10.14135/j.cnki.1006-3080.2017.06.008
HAN Rui, LI Wei, WANG Lin, YAN Song. Effect of Nb2O5 Doping on Microstructures and Microwave Dielectric Loss of SrTiO3 Ceramics[J]. Journal of East China University of Science and Technology, 2017, (6): 800-805. doi: 10.14135/j.cnki.1006-3080.2017.06.008
Citation: HAN Rui, LI Wei, WANG Lin, YAN Song. Effect of Nb2O5 Doping on Microstructures and Microwave Dielectric Loss of SrTiO3 Ceramics[J]. Journal of East China University of Science and Technology, 2017, (6): 800-805. doi: 10.14135/j.cnki.1006-3080.2017.06.008

Nb2O5掺杂对SrTiO3陶瓷显微结构和微波介电损耗的影响

doi: 10.14135/j.cnki.1006-3080.2017.06.008

Effect of Nb2O5 Doping on Microstructures and Microwave Dielectric Loss of SrTiO3 Ceramics

  • 摘要: 采用无压烧结工艺制备了Nb2O5掺杂SrTiO3陶瓷,研究了Nb2O5掺杂量对SrTiO3陶瓷相组成、显微结构和微波介电损耗的影响。结果表明:Nb2O5掺杂对SrTiO3陶瓷的相结构没有产生明显的影响,但会在一定程度上阻碍样品的致密化,同时促进晶粒的生长。随着Nb2O5掺杂量的增加,SrTiO3陶瓷的介电常数从296逐渐下降至230左右,温度系数从1.714×10-3-1逐渐下降至1.629×10-3-1Q×f值则先急剧升高,之后又慢慢下降。当Nb2O5掺杂量为0.15%(质量分数,下同)时,SrTiO3陶瓷样品的介电损耗最低,Q×f可达6 281 GHz,大约是纯SrTiO3(1 145 GHz)陶瓷样品的5.5倍(此时介电常数约为270,温度系数约为1.684×10-3-1)。此外,对材料显微结构、介电常数、温度系数特别是介电损耗变化的原因进行了分析。

     

  • [1] ZHANG H,GYORGYFALVA G D C C D,QUIMBY R,et al.Raman spectroscopy of B-site order-disorder in CaTiO3-based microwave ceramics[J].Journal of the European Ceramic Society,2003,23(14):2653-2659.
    [2] YAMAOKA N,MASUYAMA M,FUKUI M.SrTiO3-based boundary layer capacitor having varistor characteristics[J].American Ceramic Society Bulletin,1983,62(6):698-700.
    [3] FUJIMOTO M,KINGERY W D.Microstructures of SrTiO3 internal boundary layer capacitors during and after processing and resultant electrical properties[J].Journal of the American Ceramic Society,1985,68(4):169-173.
    [4] CHEN Yuanbin.New dielectric material system of xLa(Mg1/2Ti1/2)O3-(1-x)SrTiO3 in the microwave frequencies range[J].Journal of Alloys and Compounds,2010,491(1-2):330-334.
    [5] HSU C S,HUANG Chengliang,TSENG J F,et al.Low temperature sintering and microwave dielectric properties of 0.5LaAlO3-0.5SrTiO3 ceramics using copper oxide additions[J].Ceramics International,2004,30(8):2067-2073.
    [6] CHO W W,KAKIMOTO K,OHSATO H.Microwave dielectric properties and low-temperature sintering of MgTiO3-SrTiO3ceramics with B2O3 or CuO[J].Materials Science and Engineering B,2005,121(1):48-53.
    [7] WISE P L,REANEY I M,LEE W E,et al.Structure-microwave property relations of Ca and Sr titanates[J].Journal of the European Ceramic Society,2001,21(15):2629-2632.
    [8] CHEN Yuanbin.New dielectric material system of Nd(Mg1/2Ti1/2)O3-SrTiO3 in the microwave frequency range[J].Journal of Alloys and Compounds,2011,509(5):2285-2288.
    [9] WISE P L,REANEY I M,LEE W E,et al.Structure-microwave property relations in (SrxCa(1-x)) n+1TinO3n+1[J].Journal of the European Ceramic Society,2001,21(10-11):1723-1726.
    [10] SUN P H,NAKAMURA T,SHAN Yuejin,et al.Dielectric Behavior of (1-X) LaAlO3-XSrTiO3 solid solution system at microwave frequencies[J].Journal of Applied Physics,1998,37(10):5625-5629.
    [11] HAKKI B W,COLEMAN P D.A dielectric resonator method of measuring inductive capacities in the millimeter range[J].Microwave Theory and Techniques,IRE Transactions on,1960,8(4):402-410.
    [12] COURTNEY W E.Analysis and evaluation of a method of measuring the complex permittivity and permeability microwave insulators[J].Microwave Theory and Techniques,IRE Transactions,1970,18(8):476-485.
    [13] SHEN Zongyang,LI Yueming,LUO Wenqin,et al.Structure and dielectric properties of NdxSr1-xTiO3 ceramics for energy storage application[J].Journal of Materials Science:Materials in Electronics,2013,24(2):704-710.
    [14] WANG Zhijian,CAO Minghe,ZHANG Qing,et al.Dielectric relaxation in Zr-doped SrTiO3 ceramics sintered in N2 with giant permittivity and low dielectric loss[J].Journal of the American Ceramic Society,2015,98(2):476-482.
    [15] WANG Nana,Cao Minghe,HE Zichen,et al.Structural and dielectric bahavior of giant permittivity SrNbxTi1-xO3 ceramics sintered in nitrogen atmosphere[J].Ceramics International,2016,42(12):13593-13600.
    [16] KARCZEWSKI J,RIEGEL B,GAZDA M,et al.Electrical and structural properties of Nb-doped SrTiO3 ceramics[J].Journal of Electroceramics,2010,24(4):326-330.
    [17] DU Huiling,SHI Xiang,LI Huilu.Phase developments and dielectric responses of barium substituted four-layer CaBi4Ti4O15 Aurivillius[J].Materials Research Bulletin,2011,34(6):1201-1207.
    [18] LI Wen,QI Jianquan,WANG Yongli,et al.Doping behaviors of Nb2O5 and Co2O3 in temperature stable BaTiO3-based ceramics[J].Materials Letters,2002,57(1):1-5.
    [19] ATKIN R B,HOLMAN R L,FULRATH R M.Substitution of Bi and Nb ions in lead Zirconate-Titanate[J].Journal of the American Ceramic Society,1971,54(2):113-115.
    [20] REANEY I M,IDDLES D.Microwave Dielectric ceramics for resonators and filters in mobile phone networks[J].Journal of the American Ceramic Society,2006,89(7):2063-2072.
    [21] MUHAMMAD R,IQBAL Y.Microwave dielectric properties of Ga3+ and Ta5+ co-doped CaTiO3[J].Journal of materials Science,2016,51(6):2958-2963.
    [22] ZHANG Kang,YUAN Lu,LI Wei,et al.Microwave dielectric properties of Al2O3 ceramics co-doped with MgO and Nb2O5[J].Journal of Materials Science:Materials in Electronics,2015,26(9):6526-6531.
    [23] PENN S J,ALFORD N M N,TEMPLETON A,et al.Effect of porosity and grain size on the microwave dielectric properties of sintered alumina[J].Journal of the American Ceramic Society,1997,80(7):1885-1888.
    [24] ZENG Qun,LI Wei.A low-temperature reactive sintering process for the 5Li2O-1Nb2O5-5TiO2 microwave dielectric ceramics[J].Materials science and engineering B,2009,164(3):151-155.
    [25] LEE Y C,CHIU J D,CHEN Yuhong.Effect of Nb2O5 doping on the microwave dielectric properties and microstructures of Bi2MO2O9 ceramics[J].Journal of the American Ceramic Society,2013,96(5):1477-1482.
    [26] UBIC R,REANEY I M.Structure and dielectric properties of lead pyrochlores[J].Journal of the American Ceramic Society,2002,85(10):2472-2478.
    [27] 张康,李蔚,林慧兴.MgO/Eu2O3共掺杂对Al2O3陶瓷微波介电性能的影响[J].无机材料学报,2015,30(9):984-988.
    [28] WANG Huijun,Li Wei,SHI Jianlin,et al.Effect of Mg doping on microwave dielectric properties of translucent polycrystalline alumina ceramic[J].Ceramics International,2013,39(2):1583-1586.
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出版历程
  • 收稿日期:  2017-02-21
  • 刊出日期:  2017-12-28

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