Study of the structure–property relationship in Ba substituted CaLa4Ti5O17 ceramics

  • Abdul Manan
  • Ihsan Ullah
  • Arbab Safeer Ahmad
  • Atta Ullah


Ca1−xBaxLa4Ti5O17 (0 ≤ x ≤ 0.2) compositions were fabricated via a solid-state mixed oxide route and their phase, microstructure and microwave dielectric properties were investigated. All the compositions formed single phase in the Ca1−xBaxLa4Ti5O17 (0 ≤ x ≤ 0.2) solid solutions within the detection limit of in-house X-ray diffraction. The sintered microstructure of these ceramics comprised densely packed elongated and plate-like grains. The dielectric properties varied linearly with increasing x content. Relative permittivity (ε r ) increased from 53.2 to 56.6, Q u f o decreased from 14,600 to 12,630 GHz and τ f was tuned through zero and increased from −33.6 to 1.4 ppm/°C with increase in x value from 0 to 0.2. In the present study, εr ≈ 56.6, Q u f o  ≈ 12,630 GHz and a near zero τf ≈ 1.4 ppm/°C was achieved for Ba0.2Ca0.80La4Ti5O17 (x = 0.2) ceramics.


Sinter Temperature Structural Phase Transition Microwave Dielectric Property Dielectric Resonator Composition Series 
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The authors acknowledge the financial support extended by the Higher Education Commission of Pakistan under International Support Initiative Programme (IRSIP). The authors also acknowledge the laboratory support extended by Prof. I M Reaney and the electro-ceramics group, Department of Material Science and Engineering, University of Sheffield (UK).


  1. 1.
    M. Reaney, D. Idles, J. Am. Ceram. Soc. 89, 2068 (2006)Google Scholar
  2. 2.
    A. Manan, Y. Iqbal, Mater. Res. Bull. 47, 883 (2012)CrossRefGoogle Scholar
  3. 3.
    Y.C. Chen, Y.W. Zeng, Opt. Technol. Lett. 51, 98 (2009)CrossRefGoogle Scholar
  4. 4.
    Y.C. Chen, S.H. Yao, R.J. Tasi, K.C. Chen, J. Alloys Compd. 486, 410 (2009)CrossRefGoogle Scholar
  5. 5.
    Y.C. Chen, K.C. Chen, S.C. Wang, Ferroelectr. Lett. 37, 83 (2010)CrossRefGoogle Scholar
  6. 6.
    I.N. Jawahar, N. Santha, M.T. Sebastian, P. Mohanan, J. Mater. Res. 17, 3084 (2002)CrossRefGoogle Scholar
  7. 7.
    Y. Iqbal, A. Manan, I.M. Reaney, Mater. Res. Bull. 46, 1092 (2011)CrossRefGoogle Scholar
  8. 8.
    B. Jancar, D. Suvorov, M. Valant, J. Mater. Sci. Lett. 20, 71 (2001)CrossRefGoogle Scholar
  9. 9.
    L. Fang, H. Su, Q. Yu, H. Zhang, X. Cui, Mater. Lett. 62, 4121 (2008)CrossRefGoogle Scholar
  10. 10.
    C. Hu, L. Fang, H. Su, L. Liu, J. Alloys Compd. 487, 504 (2009)CrossRefGoogle Scholar
  11. 11.
    H. Kagata, J. Kato, Jpn. J. Appl. Phys. 33, 5463 (1994)CrossRefGoogle Scholar
  12. 12.
    R.I. Scott, M. Thomas, C. Hampson, J. Eur. Ceram. Soc. 23, 2467 (2003)CrossRefGoogle Scholar
  13. 13.
    D. Liu, X.M. Chen, X. Hu, Mater. Lett. 61, 1166 (2007)CrossRefGoogle Scholar
  14. 14.
    A. Manan, Y. Iqbal, Bull. Mater. Sci. 37, 1215 (2014)CrossRefGoogle Scholar
  15. 15.
    R.D. Shannon, Acta. Crystallogr. A 32, 751 (1976)CrossRefGoogle Scholar
  16. 16.
    R.D. Shannon, J. Appl. Phys. 73, 348 (1993)CrossRefGoogle Scholar
  17. 17.
    H. Sreemoolanadhan, J. Isaac, M.T. Sebastian, K.A. Jose, P. Mohanan, Ceram. Int. 21, 385 (1995)CrossRefGoogle Scholar
  18. 18.
    I.M. Reaney, E.L. Colla, N. Setter, Jpn. J. Appl. Phys. 33, 3984 (1994)CrossRefGoogle Scholar
  19. 19.
    P.J. Harrop, Temperature coefficient of capacitance of solids. J. Mater. Sci. 4, 370 (1969)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Abdul Manan
    • 1
  • Ihsan Ullah
    • 1
  • Arbab Safeer Ahmad
    • 2
  • Atta Ullah
    • 3
  1. 1.Laboratory for Research in Advanced Materials, Department of PhysicsUniversity of Science and TechnologyBannuPakistan
  2. 2.Department of PhysicsIslamia CollegePeshawarPakistan
  3. 3.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and EngineeringWuhan University of TechnologyWuhanChina

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