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Bulletin of Materials Science

, Volume 9, Issue 5, pp 317–321 | Cite as

Conductivity pre-exponential factors for some new superionic conductors

  • N B Desai
  • K Byrappa
  • G S Gopalakrishna
  • S Srikantaswamy
  • A B Kulkarni
Article

Abstract

The pre-exponential factors obtained from the ionic conductivity studies on Na2(La, Al)ZrP3O12, Na2(La, Al)TiP3O12, NH4Zr2V3O12 and AlPO4:Li+ have been analysed. The compensation law has been found to be valid for these materials indicating that the entropy is directly related to the activation energy. The 1/α vsβ plots show straight lines for most of the superionic materials except for a few and this variation has been discussed.

Keywords

Nasicon analogues superionic conductors pre-exponential factor Meyer-Neldel rule 

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References

  1. Almond D P and West A R 1986Solid State Ionics 18/19 1105CrossRefGoogle Scholar
  2. Almond D P, Duncan G K and West A R 1983Solid State Ionics 8 159CrossRefGoogle Scholar
  3. Almond D P, Duncan G K and West A R 1985J. Non-Cryst. Solids 74 285CrossRefGoogle Scholar
  4. Bankamp B A and Huggins R A 1978Mater. Res. Bull. 13 23CrossRefGoogle Scholar
  5. Byrappa K and Gopalakrishna G S 1985Prog. Cryst. Growth Charact. 11 89CrossRefGoogle Scholar
  6. Byrappa K, Gopalakrishna G S, Venkatachalapathy V and Kulkarni A B 1985J. Less Common Metals 110 441CrossRefGoogle Scholar
  7. Byrappa K, Srikantaswamy S and Shashidhara Prasad J 1986aJ. Mater. Sci. Lett. 5 690CrossRefGoogle Scholar
  8. Byrappa K, Shashidhara Prasad J and Srikantaswamy S 1986bJ. Cryst. Growth 79 232CrossRefGoogle Scholar
  9. Byrappa K, Kulkarni A B, Desai N B and Srikantaswamy S 1987a in:Current trends in the physics of materials (ed.) M Youssuf (Singapore: World Scientific Publishers)Google Scholar
  10. Byrappa K, Kulkarni A B, Srikantaswamy S and Desai N B 1987bJ. Mater. Sci. Lett. 6 980CrossRefGoogle Scholar
  11. Byrappa K, Gopalakrishna G S, Kulkarni A B and Desai N B 1987cJ. Less Common Metals 138 1CrossRefGoogle Scholar
  12. Delmas C, Viala J C, Zeuoga R, LeFlem G, Hagenmuller P, Cherkaoui F and Brochu R 1981Solid State Ionics 3/4 209CrossRefGoogle Scholar
  13. Desai N B, Byrappa K, Kulkarni A B and Gopalakrishna G S 1987Bull. Mater. Sci. 9 117CrossRefGoogle Scholar
  14. Dosdale T and Brook R J 1978J. Mater. Sci. 13 167CrossRefGoogle Scholar
  15. Hagenmuller P and Van Gool W 1978Solid electrolytes (New York: Academic Press)Google Scholar
  16. Hu Y W, Raistrick I D and Huggins R A 1977J. Electrochem. Soc. 124 1240CrossRefGoogle Scholar
  17. Liang C C 1973J. Electrochem. Soc. 120 1289CrossRefGoogle Scholar
  18. Prakash G and Gopalan S 1985Development and characterization of Na 2SO4 based fast ion conductors, M.Tech Thesis, IIT Kanpur, India Google Scholar
  19. Roberts C G and Thomas D G 1974J. Phys. C7 2312Google Scholar
  20. Rodger A R, Kuwano J and West A R 1985Solid State Ionics 15 185CrossRefGoogle Scholar
  21. Saito Y, Maruyama T and Kobayashi K 1984Solid State Ionics 14 265CrossRefGoogle Scholar
  22. Shahi K and Wagner J B 1982J. Solid State Chem. 42 107CrossRefGoogle Scholar
  23. Shahi K, Weppner W and Rabenau A 1986Phys. Status Solidi A93 171Google Scholar
  24. Shannon R D, Taylor B E, English A D and Berzins T 1977Electrochim. Acta 22 783CrossRefGoogle Scholar
  25. Takahashi T and Kozawa A 1980Application of solid electrolytes (Cleveland: JEC press)Google Scholar
  26. Vashishta P, Mundy J N and Shenoy G K 1979Fast ion transport in solids (Amsterdam: North Holland)Google Scholar
  27. Weichman F L and Kuzel R 1970Can. J. Phys. 48 63Google Scholar
  28. Whittingham M S and Huggins R A 1972Solid State Chem. NBS Spl. Pub. 364 139Google Scholar

Copyright information

© Indian Academy of Sciences 1987

Authors and Affiliations

  • N B Desai
    • 1
    • 2
  • K Byrappa
    • 1
  • G S Gopalakrishna
    • 1
  • S Srikantaswamy
    • 1
  • A B Kulkarni
    • 1
    • 2
  1. 1.Department of GeologyUniversity of Mysore, ManasagangotriMysoreIndia
  2. 2.Department of PhysicsUniversity of GulbargaGulbargaIndia

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