Optimization of synthesis of nickel-zinc-ferrite from oxalates and oxalato hydrazinate precursors

  • V. Moye
  • K. S. Rane
  • V. N. Kamat Dalal
Papers

Abstract

Ferrites, Ni x Zn1−xFe2O4 are being synthesised by five different methods, namely (a) autocatalytic decomposition and air sintering of mixed-metal oxalato hydrazinate prepared by a solution method, (b) decomposition of oxalato hydrazinate precursors prepared by the under hydrazine method and sintering in air, (c) decomposition of mixed metal oxalates prepared by coprecipitation method in air and sintering in air, and (d) decomposing the oxalates in a controlled atmosphere (N2 + H2O + air) and sintering in (i) air and (ii) an N2 atmosphere. The decomposition of the precursors and formation of ferrite was studied by differential thermal analysis (DTA), total weight loss studies, infrared, chemical analysis, and X-ray diffraction (XRD). The saturation magnetization values of all the decomposed products and at various stages of sintering were measured. TheX-T curves were plotted to find out the Curie temperature of the sintered ferrites and the shape of these curves was compared. The saturation magnetization was plotted against the concentration of solid solution of nickel ferrite with zinc addition. If γ-Fe2O3 is taken as one of the constituents in synthesis of ferrite, the spinelization is easy, it is obsesrved in our studies that γ-Fe2O3 type phase is formedin situ in methods (a), (b) and (d). Among all five methods, method (b) is the easiest.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    T. Y. TSENG and J. C. LIN,J. Mater. Sci. Lett. 8 (1989) 261.Google Scholar
  2. 2.
    F. J. C. M. TOOLENAR,J. Mater. Sci. 24 (1989) 1089.Google Scholar
  3. 3.
    C. J. CHEN, K. BRIDGER, R. WINZER and V. R. PAI VERNEKER,J. Appl. Phys. 63 (1988) 3786.Google Scholar
  4. 4.
    K. C. PATII, D. GAJAPATIIY and V. R. PAI VERNEKAR,Mater. Res. Bull. 17 (1982) 29.Google Scholar
  5. 5.
    T. T. SHRINIVASAN, P. RAVINDRANATHAN, L. E. CROSS, R. ROY, R. F. NEWNHAN, S. G. SANKER and K. C. PATIL,J. Appl. Phys. 63 (1988) 3789.Google Scholar
  6. 6.
    H. TZEHOVAL and M. STEINBERGE,Israel J. Chem. 22 (1982) 227.Google Scholar
  7. 7.
    CA 110:50029b F. GEN, T. YOSHIMA and Y. MINEO,Jpn. Kokai Tokkyo Koho JP 63,157,407 [88,157,407] (cl. HO1F1/36) 30 June 1988 App. 86/303,938 22 December 1986.Google Scholar
  8. 8.
    CA 110:127355q I. TETSUO, S. MASAHIRO, I. NOBUO and S. TOSHIHIKO,ibid. JP 63,179,001 [88,179.001] (cl. B22F1/00) 23 July 1988 Appl. 87/10,043 21 January 1987.Google Scholar
  9. 9.
    T. B. SHAKODINA, E. I. KRYLOV and V. A. SHAROV,Russ. J. Inorg. Chem. 2 (1972) 17.Google Scholar
  10. 10.
    W. J. SCHUELE,J. Phys. Chem. 63 (1959) 83.Google Scholar
  11. 11.
    R. A. BROWN and S. C. BEVAN,Inorg. Nucl. Chem. 28 (1966) 387.Google Scholar
  12. 12.
    K. S. RANE, A. K. NIKUMBH and A. J. MUKHEDKAR,J. Mater. Sci. 16 (1981) 2387.Google Scholar
  13. 13.
    H. H. JOACHIM,Z. Chem. 27 (1987) 334.Google Scholar
  14. 14.
    V. MOYE, K. S. RANE and V. N. KAMAT DALAL, in Proceedings of the Seventh National Symposium on Thermal Analysis, October,3 (1989) 109.Google Scholar
  15. 15.
    Idem, J. Mater. Sci. (in press).Google Scholar
  16. 16.
    A. A. VOGEL, in “A Textbook of Quantitative Inorganic Analysis” (Longman, 1978).Google Scholar
  17. 17.
    S. D. LIKHITE, C. RADHAKRISHNAMURTHY and P. W. SAHASRABUDHE,Rev. Sci. Instr. 25 (1965) 302.Google Scholar
  18. 18.
    S. D. LIKHITE and C. RADHAKRISHNAMURTHY.Curr. Sci. 35 (1966) 534.Google Scholar
  19. 19.
    J. J. WENT and E. W. GORTER,Phil. Tech. Rev. 13 (1952) 181.Google Scholar
  20. 20.
    M. M. SCHIEBER and E. P. WOHLFARTH, in “Experimental Magnetochemistry”, Vol. 8 (North Holland, 1967).Google Scholar
  21. 21.
    J. M. DANIELS and A. ROSENCWAIG,Canadian J. Phys. 48 (1970) 381.Google Scholar
  22. 22.
    E. W. SCHMIDT, in “Hydrazine and Its Derivatives” (Wiley, 1989).Google Scholar

Copyright information

© Chapman and Hall Ltd. 1990

Authors and Affiliations

  • V. Moye
    • 1
  • K. S. Rane
    • 2
  • V. N. Kamat Dalal
    • 2
  1. 1.Department of ChemistryDhempe College of Arts and ScienceMiramar, PanajiIndia
  2. 2.Department of ChemistryGoa UniversityBambolimIndia

Personalised recommendations