On the Magnetic Properties of Sintered Iron

概要

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An improved method of producing iron powder briquette from Fe(CO)_5 was developed. The method enables us to get iron briquette superior in magnetic properties to any briquette produced by other industrial method. The briquette was prepared from oxide powder, obtained by a specially arranged oxidizing apparatus for liquid carbonyl. The oxide was reduced in hydrogen stream, and moulded to a troidal form with the pressure of 6t/cm^2 ; the compact thus obtained was sintered at 450°, 800°, 900°, 1, 000°and 1, 100°. The superiority of the briquette in magnetic properties was found in comparison with other briquettes, which were prepared from carbonyl iron and electrolytic iron powder under the same condition.
東北大学の論文