| 摘要 |
<p>Disclosed is a method for producing a magnetic disk, by which a magnetic recording layer can be formed at high temperatures. Specifically disclosed is a method for producing a magnetic disk, which comprises a step wherein a magnetic recording layer is formed on a glass substrate that is at a temperature of 550°C or more. The glass substrate contains, in mole percentage, 62-74% of SiO2, 6-18% of Al2O3, 2-15% of B2O3, and 8-21% in total of one or more components selected from among MgO, CaO, SrO and BaO, and the total of the contents of the above-mentioned seven components is not less than 95% by mole. The magnetic disk contains one or more components selected from among Li2O, Na2O and K2O in an amount of less than 1% by mole, or does not contain any one of the three components.</p> |
