Fabrication of ferrite material

Details Fabrication of ferrite material Fabrication of ferrite material

1979-12-07

1981-01-27

Parrish, John

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

252 6256, 252 6262, C04B 3526

Patent

active

042475007

ABSTRACT:
A method of fabricating ferrite material which results in high permeability and/or fast thruputs. Binder systems are employed such that the components burn out completely and sequentially during sintering and result in the proper grain size and surface properties for high permeability in the ferrite material. In particular, the binder system comprises polyvinyl alcohol, polyvinyl pyrrolidone and methyl cellulose.

REFERENCES:
patent: 3031407 (1962-04-01), Marco
patent: 3054752 (1962-09-01), Leaycraft
patent: 3232877 (1966-02-01), Vassiliev
patent: 3371044 (1968-02-01), Cochardt
Pincus et al., "The Role of Organic Binders in Ceramic Processing," Ceramic Industry Magazine, Apr. 1969, pp. 106-109, 146.
Slick, "A Thermogravimetric Study of the Equilibrium Relations between a Mn-Zn Ferrite and an O.sub.2 -N.sub.2 Atmosphere," Ferrites, Proceedings of the International Conference, Jul. 1970, Japan, pp. 81-83.
Hoffman, "Importance of Binders in Spray Dried Pressbodies," Ceramic Bulletin, vol. 51, No. 3 (1972) pp. 240-242.

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