Title :
Surface and lubricant/overcoat interface properties of the rigid disks after corrosion
Author :
Huang, L.J. ; Hung, Y. ; Chang, S.
Author_Institution :
Recording Media Group, Seagate Technol., Milpitas, CA, USA
fDate :
9/1/1997 12:00:00 AM
Abstract :
The surface and perfluoropolyether (PPE) lubricant/overcoat properties of magnetic hard disks after corrosion stressed at a temperature of 80°C and an 80% relative humidity are studied by time-of-flight secondary ion mass spectrometry. The corrosion stress leads to selective migration of cobalt from the magnetic layer which is dependent on disk overcoat composition and structure. The corrosion also results in evaporation and degradation of the PFPE lubricant
Keywords :
corrosion; hard discs; lubrication; magnetic recording; secondary ion mass spectra; time of flight mass spectra; wear resistant coatings; 80 C; PFPE; corrosion; lubricant/overcoat interface; magnetic hard disk; perfluoropolyether; rigid disk surface; time-of-flight secondary ion mass spectrometry; Cobalt; Corrosion; Degradation; Hard disks; Humidity; Lubricants; Magnetic properties; Mass spectroscopy; Stress; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
