Magnetic recording disk for disk drive, includes silica gel layer disposed between the substrate and magnetic recording layer

摘要

Magnetic recording disk comprises substrate (76) comprises aluminum, magnetic recording layer, and silica gel layer (78) between the substrate and magnetic recording layer. Independent claims are also included for: (a) a disk drive comprising magnetic recording disk and recording head to transfer data to and from the magnetic recording disk; and (b) a method of forming magnetic recording disk comprising producing a substrate comprising aluminum, disposing a silica gel layer above the substrate, and depositing a magnetic layer above the silica gel layer.