Process for producing needle-shaped highly coercive gamma-iron(III) oxide

Acicular gamma-iron(III) oxide of high coercive force is produced by reducing acicular nonmagnetic iron(III) oxides or oxide hydroxides at between 250 and 700 DEG C with a superheated vapour mixture of an organic compound which is decomposable within this temperature range in the presence of iron ox...

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Bibliographische Detailangaben
Hauptverfasser:	REICHERT, HANS, FAULHABER, FRIEDRICH RICHARD, VAETH, GUENTER, AUTZEN, HORST, RUDOLF, PETER, OHLINGER, MANFRED, WERTHER, JOACHIM
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS INDUCTANCES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INORGANIC CHEMISTRY MAGNETS MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY NANOTECHNOLOGY PERFORMING OPERATIONS PHYSICS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSFORMERS TRANSPORTING
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