NI-ZN-CU FERRITE POWDER, GREEN SHEET AND METHOD OF MAKING A SINTERED NI-ZN-CU FERRITE BODY

NI-ZN-CU FERRITE POWDER, GREEN SHEET AND METHOD OF MAKING A SINTERED NI-ZN-CU FERRITE BODY

A Ni-Zn-Cu ferrite material having excellent DC bias characteristics is provided by adding zinc silicate thereto. The above problem can be solved by Ni-Zn-Cu ferrite particles which comprise a spinel-type ferrite and zinc silicate, which have a composition comprising 36.0 to 48.5 mol% of Fe 2 O 3 ,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DOTE, Tomohiro, OKANO, Yoji, SUGITA, Norio
Format: Patent
Sprache:eng ; fre ; ger
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
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
LIME, MAGNESIA
MAGNETS
METALLURGY
PERFORMING OPERATIONS
REFRACTORIES
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
SLAG
TRANSFORMERS
TRANSPORTING
TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:A Ni-Zn-Cu ferrite material having excellent DC bias characteristics is provided by adding zinc silicate thereto. The above problem can be solved by Ni-Zn-Cu ferrite particles which comprise a spinel-type ferrite and zinc silicate, which have a composition comprising 36.0 to 48.5 mol% of Fe 2 O 3 , 7.0 to 38 mol% of NiO, 4.5 to 40 mol% of ZnO, 5.0 to 17 mol% of CuO and 1.0 to 8.0 mol% of SiO 2 , all amounts being calculated in terms of the respective oxides, and which have a ratio of an X-ray diffraction intensity from a 113 plane of the zinc silicate to an X-ray diffraction intensity from a 311 plane of the spinel-type ferrite is 0.01 to 0.12; a green sheet obtained by forming a material comprising the Ni-Zn-Cu ferrite particles into a film; and a Ni-Zn-Cu ferrite sintered ceramics.