Method for producing soft magnetic hexagonal ferrite...

Details Method for producing soft magnetic hexagonal ferrite... Method for producing soft magnetic hexagonal ferrite...

2006-04-11

2006-04-11

Bos, Steven (Department: 1754)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S594200, C252S062630

Reexamination Certificate

active

07025946

ABSTRACT:
A soft hexagonal ferrite sintered material includes crystal particles of M-type hexagonal ferrite corresponding to a general chemical formula MFe12O19wherein M is at least one element selected from the group consisting of Ba, Sr and Pb. Crystal particles having particle diameters of 5 μm to 100 μm are extracted from a sintered material produced from a precursor powder mixture. The extracted particles as seed crystals are mixed with a calcined powder comprising fine crystals having the above composition and particle diameters of 0.5 μm to 3 μm, then is sintered until the intended particle growth of the crystal particles in the sintered material is achieved to give an average particle diameter of 30 μm to 500 μm.

REFERENCES:
patent: 4886714 (1989-12-01), Torii et al.
patent: 5232617 (1993-08-01), Sarda et al.
patent: 0 547 620 (1993-06-01), None
patent: 2 785 280 (2000-05-01), None
patent: 9-124322 (1997-05-01), None
patent: 09124322 (1997-05-01), None
patent: 2717815 (1997-11-01), None

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