Process for producing magnetic particles by vacuum evaporation o

Details Process for producing magnetic particles by vacuum evaporation o Process for producing magnetic particles by vacuum evaporation o

1977-05-20

1978-09-12

Smith, John D.

Metal treatment

Compositions

Heat treating

75 05R, 75 05AA, 75 05BA, 106 20, 118 49, 209223R, 252 6255, 252 6256, 427 47, 427128, B22F 900, C23F 706, H01F 106

Patent

active

041135210

ABSTRACT:
By employing evaporation techniques, small particles, of the order of 100 A, of Fe.sub.3 O.sub.4 or FeO having relatively high magnetic moments can be fabricated.

REFERENCES:
patent: 2744040 (1956-05-01), Altman
patent: 2996418 (1961-08-01), Bleil
patent: 3063858 (1962-12-01), Steeves
patent: 3132022 (1964-05-01), Laborsky
patent: 3148079 (1964-09-01), Banks et al.
patent: 3399142 (1968-08-01), Conley
patent: 3795542 (1974-03-01), Halaby et al.
patent: 4063000 (1977-12-01), Aonuma et al.
Rosensweig, R. E., "Magnetic Fluids", International Science and Technology, Jul. 1966.

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