Method of manufacturing ferrite crystals

Details Method of manufacturing ferrite crystals Method of manufacturing ferrite crystals

1990-04-30

1993-10-26

Derrington, James

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156DIG73, 156DIG74, 252 6257, 264 65, 264570, 501126, C04B 3526

Patent

active

052562425

ABSTRACT:
A method of manufacturing ferrite crystals such as single crystal bodies and polycrystal bodies with garnet structure is disclosed, which includes the steps of effecting a composition controlling for raw powders, forming raw powders, sintering formed bodies and effecting hot isostatic press treatment for sintered bodies. Also, a method of producing ferrite powders preferably used for the ferrite crystal manufacturing method mentioned above.
The thus obtained ferrite crystal bodies with garnet structure show good magnetooptical properties such as light transmissivity, Faraday rotation angle and Verdet constant, and are preferably used for magnetooptical elements such as optical isolators and optical magnetic field sensors etc.

REFERENCES:
patent: 3853973 (1974-12-01), Hardtl
patent: 4552710 (1985-11-01), Rigby et al.
Derwent Accession No. 87-139 599, Questel Telesystems (WPIL) Derwent Publications Ltd., London.
Derwent Accession No. 88-81 758, Questel Telesystems (WPIL) Derwent Publications Ltd., London.

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