• CSCD中国科学引文数据库来源期刊
  • 中文核心期刊
  • 中国机械工程学会材料分会会刊
  • 中国科技核心期刊
高级检索

Ba(Fe0.5Nb0.5)O3基复相陶瓷的制备与介电性能

房明瑞, 王卓, 李海娟, 王春

房明瑞, 王卓, 李海娟, 王春. Ba(Fe0.5Nb0.5)O3基复相陶瓷的制备与介电性能[J]. 机械工程材料, 2016, 40(6): 59-64. DOI: 10.11973/jxgccl201606013
引用本文: 房明瑞, 王卓, 李海娟, 王春. Ba(Fe0.5Nb0.5)O3基复相陶瓷的制备与介电性能[J]. 机械工程材料, 2016, 40(6): 59-64. DOI: 10.11973/jxgccl201606013
FANG Ming-rui, WANG Zhuo, LI Hai-juan, WANG Chun. Preparation and Dielectric Property of Ba(Fe0.5Nb0.5)O3 Based Composite Ceramic[J]. Materials and Mechanical Engineering, 2016, 40(6): 59-64. DOI: 10.11973/jxgccl201606013
Citation: FANG Ming-rui, WANG Zhuo, LI Hai-juan, WANG Chun. Preparation and Dielectric Property of Ba(Fe0.5Nb0.5)O3 Based Composite Ceramic[J]. Materials and Mechanical Engineering, 2016, 40(6): 59-64. DOI: 10.11973/jxgccl201606013

Ba(Fe0.5Nb0.5)O3基复相陶瓷的制备与介电性能

基金项目: 

国家自然科学基金资助项目(51372144, 51572160)

中国博士后科学基金资助项目(2015M572515)

陕西省教育厅专项基金资助项目(14JK1080)

陕西科技大学研究生创新基金资助项目

详细信息
    作者简介:

    房明瑞(1990-), 女, 河南洛阳人, 硕士研究生。

  • 中图分类号: TB33

Preparation and Dielectric Property of Ba(Fe0.5Nb0.5)O3 Based Composite Ceramic

  • 摘要: 采用粉末烧结法制备了添加不同质量分数(10%~40%)玻璃的Ba(Fe0.5Nb0.5)O3基复相陶瓷, 利用X射线衍射仪、扫描电镜、阻抗测试仪等研究了其微观结构和介电性能。结果表明:该复相陶瓷的主晶相为立方钙钛矿结构的Ba(Fe0.5Nb0.5)O3相, 随着玻璃添加量的增加, 复相陶瓷的晶粒尺寸逐渐减小,孔隙率降低; 不同玻璃含量复相陶瓷均具有良好的介电性能,其相对介电常数和介电损耗角正切均随玻璃添加量的增加而降低;添加40%玻璃的复相陶瓷击穿场强最大, 为296 kV·cm-1, 添加10%玻璃的储能密度最大, 为1.324 J·cm-3, 晶界相对改善Ba(Fe0.5Nb0.5)O3基复相陶瓷的击穿场强起主要作用。
    Abstract: The Ba(Fe0.5Nb0.5)O3 based composite ceramics with various glass content (10wt%-40wt%) were prepared by the powder sintering method. The microstructures and dielectric properties of the composite ceramics were investigated by the X-ray diffractometer, scanning electron microscope and impedance analyzer. The results show that the major phase of the composite ceramics was Ba(Fe0.5Nb0.5)O3 phase with cubic crystal structure. With the increase of the glass content, the grain sizes and porosities of the composite ceramics decreased gradually. The dielectric properties of the composite ceramics with different glass content were all excellent. The relative dielectric constant and tangent of dielectric loss angle both decreased with the increase of glass content. The breakdown strength of the composite ceramic with 40wt% glass reached the highest value of 296 kV·cm-1, while the energy storage density with 10wt% glass was the highest of 1.324 J·cm-3. The grain boundary phase plays an important role in improving the breakdown strength of Ba(Fe0.5Nb0.5)O3 based composite ceramics.
  • [1] 雷慎辉, 郑兴华, 汤德平, 等.xSrTiO3-(1-x)LaAlO3介电陶瓷的结构和介电性能[J].机械工程材料, 2011,35(10):84-87.
    [2] WANG Z,CHEN X M,NI L,et al.Dielectric abnormities of complex perovskite Ba(Fe0.5Nb0.5)O3 ceramics over broad temperature and frequency range[J].Applied Physics Letters,2007,90(2):022904.
    [3] SAHA S,SINHA T P.Dielectric relaxation in SrFe1/2Nb1/2O3[J].Journal of Applied Physics,2006,99(1):014109.
    [4] LIU Y Y,CHEN X M,LIU X Q,et al.Giant dielectric response and relaxor behaviors induced by charge and defect ordering in Sr(Fe1/2Nb1/2)O3 ceramics[J].Applied Physics Letters,2007,90(19):192905.
    [5] WANG Z,LI H J,ZHANG L L,et al.Effects of SrO-B2O3-SiO2 glass additive on dielectric properties of Ba(Fe0.5Nb0.5)O3 ceramics[J].Journal of Materials Science:Materials in Electronics,2013,24(9):3418-3422.
    [6] PRAKASH B S,VARMA K B R.Effect of the addition of B2O3 and BaO-B2O3-SiO2 glasses on the microstructure and dielectric properties of giant dielectric constant material CaCu3Ti4O12[J].Journal of Solid State Chemistry,2007,180:1918-1927.
    [7] YOUNG A,HILMAS W G,ZHANG S C,et al.Effect of liquid-phase sintering on the breakdown strength of barium titanate[J].Journal of the American Ceramic Society,2007,90(5):1504-1510.
    [8] MARCHIN L,GUILLEMET-FRITSCH S,DURAND B.Grain growth-controlled giant permittivity in soft chemistry CaCu3Ti4O12 ceramics[J].Journal of the American Ceramic Society,2008,91(2):485-489.
    [9] ZHANG Y,HUANG J,MA T,et al.Sintering temperature dependence of energy-storage properties in (Ba,Sr)TiO3 glass-ceramics[J].Journal of the American Ceramic Society,2011,94(6):1805-1810.
    [10] BARBER P,BALASUBRAMANIAN S,ANGUCHAMY Y,et al.Polymer composite and nanocomposite dielectric materials for pulse power energy storage[J].Materials,2009,2(4):1697-1733.
    [11] IRVINE J T S,SINCLAIR D C,WEST A R.Electroceramics:characterization by impedance spectroscopy[J].Advanced Materials,1990,2(3):132-138.
    [12] KUANG X J,ZHU H,ALLIX M,et al.Oxygen-deficiency-induced 6H-polymorph of hexagonal perovskite Ba4YMn3O11.5-d:synthesis,structure and properties[J].Journal of materials chemistry,2012,22(16):8103-8109.
    [13] KUANG X J,BRIDGES C,ALLIX M,et al.Internal barrier layer capacitance effect in hexagonal perovskite Ba4YMn3O11.5 ceramics[J].Chemistry of Materials,2006,18(21):5130-5136.
    [14] SHEN Z J,CHEN W P,QI J Q,et al.Dielectric properties of barium titanate ceramics modified by SiO2 and by BaO-SiO2[J].Physica Section B,2009,404(16):2374-2376.
计量
  • 文章访问数:  3
  • HTML全文浏览量:  0
  • PDF下载量:  0
  • 被引次数: 0
出版历程
  • 收稿日期:  2016-04-21
  • 刊出日期:  2016-06-19

目录

    /

    返回文章
    返回