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Journal of Materials Science

, Volume 42, Issue 10, pp 3613–3620 | Cite as

Preparation, characterization, conductivity and thermal expansion studies of Ca0.5SbMP3O12 (M = Al, Fe, Cr)

  • G. Rambabu
  • K. Koteswara Rao
  • N. Anantharamulu
  • M. Raghavender
  • G. Prasad
  • V. Prashanth Kumar
  • C. Vishnuvardhan Reddy
  • Muga VithalEmail author
Article

Abstract

Nasicon type compounds of general formula Ca0.5SbMP3O12 (M = Al, Fe, Cr) are prepared by solid-state method. All the compounds crystallize in hexagonal lattice with \( R \,\bar 3\,c \) space group. The IR spectra show characteristic PO4 vibrations. Conductivity studies indicate the presence of charged defects. The Cole-Cole plots of impedance are semicircles between 150 and 350 °C. The thermal expansion of these samples is studied in the temperature range 25–500 °C.

Keywords

Thermal Expansion Behaviour Complex Impedance Plot Oxalate Dihydrate Ferrous Oxalate Sodium Zirconium 

Notes

Acknowledgements

The authors would like to thank Head, Department of Physics, Osmania University for extending powder XRD facility. The authors wish to thank Dr. J.A.R.P. Sarma for fruitful discussions. One of us (K.K.R) thanks CSIR, New Delhi for financial assistance.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • G. Rambabu
    • 1
  • K. Koteswara Rao
    • 1
  • N. Anantharamulu
    • 1
  • M. Raghavender
    • 2
  • G. Prasad
    • 2
  • V. Prashanth Kumar
    • 2
  • C. Vishnuvardhan Reddy
    • 2
  • Muga Vithal
    • 1
    Email author
  1. 1.Department of ChemistryOsmania UniversityHyderabadIndia
  2. 2.Department of PhysicsOsmania UniversityHyderabadIndia

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