MANUFACTURE OF OXIDE MAGNETIC MATERIAL

PURPOSE:To reduce the core loss of Mn-Zn ferrite as a transformer core material, at a high frequency. CONSTITUTION:For a presintering step of a Mn-Zn ferrite manufacture process, a power of 0.855g/cm or below to the base area of a container is placed thereinto. Then presintering is performed in an a...

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Bibliographische Detailangaben
1. Verfasser:	ISHIKAWA KATSUHISA
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F CONCRETE ELECTRICITY INDUCTANCES INORGANIC CHEMISTRY LIME, MAGNESIA MAGNETS METALLURGY REFRACTORIES SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SLAG TRANSFORMERS TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PURPOSE:To reduce the core loss of Mn-Zn ferrite as a transformer core material, at a high frequency. CONSTITUTION:For a presintering step of a Mn-Zn ferrite manufacture process, a power of 0.855g/cm or below to the base area of a container is placed thereinto. Then presintering is performed in an air or oxygen atmosphere to produce (Mn, Fe)2O3 of such a quantity that I(Mn, Fe)2O3/IMn-Zn, a ratio of an X-ray diffraction intensity (I(Mn, Fe)2O3) of the Miller indices [222] face of (Mn, Fe)2O3 to an X-ray diffraction strength (IMn-Zn) of the Miller indices [311] face of Mn-Zn ferrite, will be 0.38 or more.