Abstract
IT has been known for many years that a body containing parallel elongated and suitably equispaced iron particles, each of about 0.02µ cross-sectional diameter, should theoretically possess excellent permanent magnetic properties. To the best of our knowledge, all attempts at producing materials with the desired structure have relied on the manufacture and compacting of submicroscopic iron particles. Although the results have been of considerable scientific and commercial interest, the desired degree of uniformity of particle characteristics has not yet been achieved.
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LEVI, F. Fine Iron Filaments Magnets. Nature 183, 1251–1252 (1959). https://doi.org/10.1038/1831251a0
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DOI: https://doi.org/10.1038/1831251a0
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