Abstract
An homogeneous BaO ·Fe2O3 ·B2O3 glass containing 30% Fe2O3 is prepared by a splat-cooling technique. X-ray and electron diffraction reveal the product to be amorphous at room temperature. The crystallization, as shown by DTA studies, begins at 750 K, and up to 950 K, a temperature at which BaFe12O19 is shown to be present, the crystallizing products are mainly evolutive.
The magnetic measurements show a probably mictomagnetic behaviour at low temperature with a maximum of magnetic susceptibility at 12 (±1) K. At higher temperature the susceptibility obeys a Curie-Weiss law with large negative Weiss constant and low Curie constant per Fe3+ ions. After crystallization the product is ferrimagnetic and could be used as a permanent magnet.
Mössbauer study reveals that the glass mainly consists of Fe3+ ions in distorted sites and a hyperfine structure at low temperature; the magnetic ordering temperature is estimated to be about 44 (±1) K.
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References
B. T. Shirk and W. R. Buessem, J. Amer. Ceram. Soc. 53 (1970) 192.
M. Fahmy, J. J. Park, M. Tumozawa and R. K. MacCrone, Phys. Chem. Glasses 13 (1972) 21.
D. W. Moon, J. M. Aitken, R. K. MacCrone and G. S. Cieloszyk, ibid. 16 (1975) 91.
M. J. Park and R. K. MacCrone, J. Korean Phys. Soc. 7 (1974) 73.
H. Tanigawa and H. Tanaka, Osaka Kogyo Oyutsu Shikenoko Kiko, 15 (1964) 285.
P. Duwez, J. Appl. Phys. 31 (1960) 1136
H. Jones, G. Suryanarayana, J. Mater. Sci. 8 (1973) 705.
G. H. Gokularathnam, ibid. 9 (1974) 673.
P. T. Sarjeant and R. Roy, J. Amer. Ceram. Soc. 50 (1967) 500.
P. Kantor, A. Revcolevschi and R. Collongues, J. Mater. Sci. 8 (1973) 1359.
T. Suzuki and A. M. Anthony, Mater. Res. Bull. 9 (1974) 745.
J. B. Monteil, J. C. Bernier and A. Revcolevschi, ibid. 12 (1977) 235.
J. B. Monteil, L. Padel and J. C. Bernier, J. Solid State Chem. 24 (1978) 134.
O. Horie, Y. Syono, Y. Nakagawa, A. Ito, K. Okamura and S. Yajima, Solid State Comm. 25 (1978) 423.
C. Chaumont, J. Boissier and J. C. Bernier, Rev. Int. Htes Temp. Refract. 15 (1978) 23.
H. Laville, J. C. Bernier, J. P. Sanchez Sol. State Comm. 27 (1978) 259.
A. Revcolevschi, Revue de la Société d'Encouragement pour l'Industrie Française 1 (1974) 3.
H. S. Chen and C. E. Miller, Rev. Sci. Instrum. 41 (1970) 1237.
G. Charlot, “Chimie Analytique Quantitative” (Masson, Paris, 1974) p. 413.
S. Christow, Z. Anal. Chem. 125 (1943) 278.
S. Foner, Rev. Sci. Instrum. 30 (1959) 548.
S. Chakravorty, P. Panigrahy and P. A. Beck, J. Appl. Phys. 42 (1971) 1698.
H. Oesterreicher, J. Solid State Chem. 26 (1978) 33.
J. M. D. Coey, P. W. Readman, Nature 246 (1973) 476.
J. M. D. Coey, Phys. Bull. 27 (1976) 294.
L. Neel, Ann. Geophysique 5 (1949) 99.
J. M. D. Coey, J. Phys. (Colloque), 35 (1974) 89.
T. E. Sharon and C. C. Tsuei, Phys. Rev. B 5 (1972) 1047.
P. A. Beck, Prog. Mater. Sci. 23 (1978) 1.
G. R. Mather, “Amorphous Magnetism” (Plenum Press, New York, 1973) p. 87
R. A. Verhelst, R. W. Kline, A. M. De Graaf and H. O. Hooper Phys. Rev. B11 (1975) 4427.
L. A. Bieman, P. F. Kenealy and A. M. De Graaf, “Amorphous Magnetism II” (Plenum Press, New York, 1977) p. 587.
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Laville, H., Bernier, J.C. Mictomagnetism in a new BaO.Fe2O3.B2O3 glass.. J Mater Sci 15, 73–81 (1980). https://doi.org/10.1007/BF00552429
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DOI: https://doi.org/10.1007/BF00552429