Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1988-07-25
1989-09-12
Tufariello, T. M.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
2041814, C25D 1500
Patent
active
048657034
ABSTRACT:
A magnetic recording medium is fabricated by the electrodeposition of acicular magnetic particles onto an electrically conductive substrate from a mixture that is continuously dispersed and circulated through the electrodeposition vessel. Electrodeposition is effected at a critical electric field strength so that the particles are aligned in solution, and deposited perpendicular to the substrate surface such that the medium is highly densified. By use of anisotropic particles the resultant medium is adaptable for perpendicular recording, and by use of isotropic particles the resultant medium will support both longitudinal and perpendicular recording.
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IBM Technical Disclosure Bulletin, vol. 20, No. 4, 9/77, "Multilayer Magnetic Recording Media", C. A. Bruce et al., pp. 1553-1554.
Eastman Kodak Company
Robbins Daniel
Tufariello T. M.
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