FERRITE SINTERED COMPACT

PURPOSE: To provide a ferrite sintered compact made of an inexpensive selected material, having high impedance at a frequency of >= 50 MHz and capable of efficiently insulating radiation noises. CONSTITUTION: In the MgCuZn-based ferrite sintered compact having composition comprising 7.5-23.0 mol%...

Full description

Saved in:
Bibliographic Details
Main Authors SHIMAZAKI TATSUYA, KANEDA ISAO, MURASE DAKU, UMEDA HIDENOBU
Format Patent
LanguageEnglish
Korean
Published 12.07.2001
Edition7
Subjects
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
Online AccessGet full text

Cover

More Information
Summary:PURPOSE: To provide a ferrite sintered compact made of an inexpensive selected material, having high impedance at a frequency of >= 50 MHz and capable of efficiently insulating radiation noises. CONSTITUTION: In the MgCuZn-based ferrite sintered compact having composition comprising 7.5-23.0 mol% of magnesium oxide, 7.0-20.0 mol% of copper oxide, 19.0-24.2 mol% of zinc oxide and 48.5-50.3 mol% of iron oxide as substantially principal components, the ferrite sintered compact is constituted in such a way that an average particle diameter of the ferrite sintered compact is 1.10-7.30 μm and a standard deviation σ of the particle size distribution is 0.60-10.00. 본 발명은 7.5∼23.0몰%의 산화마그네슘, 7.0∼20.0몰%의 산화구리, 19.0∼24.2몰%의 산화아연, 48.5∼50.3몰%의 산화철을 실질적인 주성분 조성으로 구성되는 MgCuZn계의 페라이트 소결체로서, 상기 페라이트 소결체의 평균입경이 1.10∼7.30㎛, 입도분포의 표준편차 σ가 0.60∼10.00의 범위가 되게 구성되어 있으므로 염가의 재료선정으로 주파수 50MHz 이상에서 임피던스가 높고, 효율좋고 복사(輻射)노이즈를 차폐할 수 있는 페라이트 소결체를 제공할 수 있다.
Bibliography:Application Number: KR20000055728