FERRITIC MAGNETIC POWDER AND ITS PRODUCTION

Title:

FERRITIC MAGNETIC POWDER AND ITS PRODUCTION

Document Type and Number:

Japanese Patent JPH04362019

Kind Code:

A

Abstract:

PURPOSE: To offer ferritic magnetic powder remarkably improved in saturation magnetization compared to that of the conventional one, furthermore small in the electric resistance of powder, excellent in dispersibility and usable as the magnetic recording material for high density recording.

CONSTITUTION: This is ferritic magnetic powder having features of being expressed by a general formula n(BaO).Fe(III)12-X-YFe(II)x MyO18-z (where M denotes one or more kinds of elements selected from Co, Ni, Zn, Cu, Mg, Mn, Bi, Si, Ti, 'Z.r, Sn, Sb, Ta, Nb, Mo, V and W as well as the numerical value of n=0.3 to 0.9, x=0.01 to 1.0, y=0.1 to 4 and 0<z<2 is satisfied) and having ≤0.1μm grain size.

More Like This:

JP2938348	OXIDE MAGNETIC MATERIAL
WO/2013/019137	OXIDE FERRIMAGNETICS WITH SPINEL STRUCTURE NANOPARTICLES AND IRON OXIDE NANOPARTICLES, BIOCOMPATIBLE AQUEOUS COLLOIDAL SYSTEMS COMPRISING NANOPARTICLES, FERRILIPOSOMES, AND USES THEREOF
JP2001135512	FERRITE MAGNET POWDER, MAGNET USING THE MAGNET POWDER AND METHOD OF MANUFACTURING BOTH

Inventors:

KIMURA TAKAYUKI
HASHIMOTO KAZUO
KIMURA HIROBUMI

Application Number:

JP16526891A

Publication Date:

December 15, 1992

Filing Date:

June 11, 1991

Export Citation:

Click for automatic bibliography generation Help

Assignee:

UBE INDUSTRIES

International Classes:

C01G49/00; H01F1/11; (IPC1-7): C01G49/00; H01F1/11

Previous Patent: 管状構成部分の迅速連結装置

Next Patent: FERRITIC MAGNETIC POWDER AND ITS PRODUCTION