Title :
Fabrication of high density magnetic recording media using metal particles
Author :
Lin, I. ; Wang, C.
Author_Institution :
IBM Corp., San Jose, CA, USA
fDate :
1/1/1990 12:00:00 AM
Abstract :
The feasibility of making a metal-particle-rigid disk has been demonstrated. To improve the quality of dispersion, a special type of surfactant and a pigment-pretreatment cycle were necessary. A unique combination of coating parameters has been selected to overcome the instability of magnetic coating. Sharp transition (PW50=0.029 μ) and higher linear density (3 dB roll off >40 kbpi) were obtained by using a magnetoresistance head. The prospect of using metal particles in a rigid disk is discussed
Keywords :
hard discs; magnetic properties of fine particles; magnetic recording; surface treatment; coating parameters; dispersion quality; high density magnetic recording media; linear density; magnetic coating instability; magnetoresistance head; metal particles; metal-particle-rigid disk; pigment-pretreatment cycle; sharp transition; surfactant; Coatings; Coercive force; Disk recording; Fabrication; Iron; Magnetic recording; Oxidation; Pigmentation; Saturation magnetization; Viscosity;
Journal_Title :
Magnetics, IEEE Transactions on
