Hexagonal magnetic ferrite pigment for high density magnetic rec

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter

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428403, 428684BA, 428684BH, 428900, 252 6254, 252 6256, 252 6259, 252 6263, 252 6257, 252 6258, 252 6262, 252 6264, G11B 566, B32B 516

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056164149

ABSTRACT:
The present invention provides a hexagonal magnetic ferrite pigment suitable for high density magnetic recording applications. The pigment is characterized by small particle size, a modified magnetoplumbite structure, and relatively high magnetic moment. The pigment is capable of being prepared by firing suitable precursor particles in air at temperatures below 850.degree. C.

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