SLURRY FOR POLISHING MAGNETIC DISK GLASS, METHOD FOR MANUFACTURING MAGNETIC DISK GLASS SUBSTRATE USING POLISHING SLURRY, AND MAGNETIC DISK GLASS SUBSTRATE

摘要

PROBLEM TO BE SOLVED: To provide a slurry for polishing magnetic disk glass capable of preventing damage formed on an outer peripheral side face of a glass plate by fiber included in the polishing slurry in a polishing process, and to provide a method for manufacturing glass substrate using the polishing slurry, and a magnetic disk glass substrate.;SOLUTION: The slurry for polishing magnetic disk glass according to the present invention includes particles consisting primarily of cerium oxide. The slurry for polishing the magnetic disk glass includes oxide particles other than the particles consisting primarily of cerium oxide, at least particles of one oxide selected from titania, calcium carbonate, boehmite, zinc oxide, manganese dioxide, and dimanganese trioxide. The present invention also relates to a method for manufacturing magnetic disk glass substrates using the polishing slurry and the magnetic disk glass substrate.;COPYRIGHT: (C)2013,JPO&INPIT