Abstract
ESR and Mössbauer studies of the precipitation process of various ferrites from silicate glasses were made to characterize the precipitation mechanism. The changes in linewidth (ΔH 1/2) and effectiveg-value (g eff) in the ESR spectra of the precipitation process are well explained in terms of super-exchange interaction between magnetic ions and interparticle dipolar interaction between precipitated ferrites. The precipitation tendency of spinel type ferrites from silicate glasses was found to be in the following order: NiFe2O4≫CoFe2O4>Fe3O4≧ZnFe2O4, MnFe2O4. The above order coincided with the order of octahedral site preference energies of divalent transition metal ions.
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R. R. Shaw andJ. H. Heasley,J. Amer. Ceram. Soc. 50 (1967) 297.
W. J. S. Blackburn andB. P. Tilley,J. Mater. Sci. 9 (1974) 1265.
B. T. Shirk andW. R. Buessem,J. Amer. Ceram. Soc. 53 (1970) 192.
M. O'horo andR. Steinitz,Mater. Res. Bull. 3 (1968) 117.
A. Prasad, D. Bahadur, R. M. Singru andD. Chakravorty,J. Mater. Sci. 17 (1982) 2687.
T. Komatsu, N. Soga andM. Kunugi,J. Appl. Phys. 50 (1979) 6469.
T. Komatsu andN. Soga,ibid. 51 (1980) 601.
Idem, ibid. 51 (1980) 5926.
D. W. Collins andL. N. Mulay,J. Amer. Ceram. Soc. 53 (1970) 74.
Y. Goto andK. Takahashi,J. Ceram. Assoc. Jpn. 80 (1972) 358.
T. Komatsu andN. Soga,J. Chem. Phys. 72 (1980) 1781.
Yu. D. Kruchinin andT. M. Pogodina,J. Appl. Chem. USSR, Consultants Bur. Tranl.45 (1972) 1500.
R. J. P. Williams,Nature 184 (1959) 44.
R. G. Burns andW. S. Fyfe,Chem. Geol. 1 (1966) 49.
C. D. Curtis,Geochim. Cosmochim. Acta 28 (1964) 389.
R. G. Burns andW. S. Fyfe,Science 144 (1964) 1001.
T. M. Seward,Chem. Geol. 7 (1971) 73.
J. D. Dunitz andL. E. Orgel,J. Phys. Chem. Solids 3 (1957) 318.
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Komatsu, T., Soga, N. ESR and Mössbauer studies of the precipitation process of various ferrites from silicate glasses. J Mater Sci 19, 2353–2360 (1984). https://doi.org/10.1007/BF01058111
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DOI: https://doi.org/10.1007/BF01058111