| 简介 |
PROBLEM TO BE SOLVED : To provide an aluminum alloy reflection film for an optical recording medium having excellent corrosion resistance and surface smoothness and to provide a sputtering target for forming the reflection film. SOLUTION : The aluminum alloy reflection film comprises an aluminum alloy containing 0.1 to 15 mass% Mg and 0.1 to 10 mass% one or two or more rare earth elements in total if needed. The rest of the aluminum alloy consists of Al and inevitable impurities and the concentration of the inevitable impurities is regulated to be ≤100 ppm. COPYRIGHT : (C)2007, JPO&INPIT |
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