NI-BASED FERRITE SINTERED BODY, COIL COMPONENT, AND METHOD FOR MANUFACTURING NI-BASED FERRITE SINTERED BODY

Title:

NI-BASED FERRITE SINTERED BODY, COIL COMPONENT, AND METHOD FOR MANUFACTURING NI-BASED FERRITE SINTERED BODY

Document Type and Number:

WIPO Patent Application WO/2018/168974

Kind Code:

A1

Abstract:

Provided is a Ni-based ferrite sintered body having a composition that contains, in terms of oxides, 47.0-48.3 mol% of Fe2O3, 14.5 mol% or more and less than 25 mol% of ZnO, 8.2-10.0 mol% of CuO, and more than 0.6 mol% and 2.5 mol% or less of CoO, with the balance consisting of NiO and unavoidable impurities, wherein the average crystal grain size is greater than 2.5 μm and less than 5.5 μm.

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Inventors:

TANAKA SATORU (JP)
KOYUHARA NORIKAZU (JP)
TADA TOMOYUKI (JP)

Application Number:

PCT/JP2018/010094

Publication Date:

September 20, 2018

Filing Date:

March 15, 2018

Export Citation:

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Assignee:

HITACHI METALS LTD (JP)

International Classes:

C04B35/30; H01F1/34

Domestic Patent References:

WO2008133152A1	2008-11-06
WO2008133152A1	2008-11-06

Foreign References:

JPH10256024A	1998-09-25
JP2005306668A	2005-11-04
JPH0661033A	1994-03-04
JPH06120021A	1994-04-28

Other References:

"Ferrite", 30 November 1986, MARUZEN CO., LTD., pages: 79
See also references of EP 3597617A4

Attorney, Agent or Firm:

TAKAISHI Kitsuma (JP)

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