Abstract
IT was discovered by Mishima1 that very good permanent magnets could be produced by the suitable heat-treatment of iron-nickel-aluminium alloys, of compositions near Fe2NiAl. In search of an explanation, we have made a comprehensive X-ray examination of slowly cooled iron-nickel-aluminium alloys. The results show considerable divergences from Köster's diagram2 (see Fig. 1), and shed new light on the results of earlier X-ray work on the magnetic alloys3,4,5.
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References
Mishima, T., Stahl u. Eisen, 53, 79 (1931).
Köster, W., Archiv. Eteenhutt., 7, 257 (1933-34).
Werestchiagan, L., and Kurdjumov, G., Tech. Phys. U.S.S.R., 2, 1 (1935).
Glocker, R., Pfister, H., and Wiest, P., Archiv. Eissenhutt., 8, 561 (1934-35).
Burgers, W. G., and Snoek, G., Physica, 2 (10), 1064 (1935).
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BRADLEY, A., TAYLOR, A. An X-Ray Investigation of the Cause of High Coercivity in Iron-Nickel-Aluminium Alloys. Nature 140, 1012–1013 (1937). https://doi.org/10.1038/1401012a0
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DOI: https://doi.org/10.1038/1401012a0
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