| 摘要 |
PURPOSE:To enhance the corrosion resistance of a recording medium by using a eutectic gold alloy having 130-700 deg.C m.p. CONSTITUTION:A two-component alloy or a multicomponent alloy consisting of gold as a principal component and >=1 kind of other metal or metalloid such as Si, Ge, Sn, Sb or Zn is used as a recording medium. The alloy has a lower m.p. than the single metal and shows corrosion resistance close to that of gold. When a recording layer having about 300Angstrom thickness is formed from the alloy, the layer can be used without requiring a protective layer. The figure is the phase diagram of an Au-Si alloy. |
