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日本日立制作所研制成功一种新功能材料—光记录合金。这种材料在光能作用下,其颜色会产生可逆转变。它是银锌系或银铜铝系合金,用蒸涤或溅射方法淀积于基板上而制成。这种颜色转变,是由于物质的结构相变所致。
Japan’s Hitachi Ltd. successfully developed a new functional material - optical recording alloy. This material under the action of light energy, the color will produce a reversible change. It is made of silver-zinc or silver-copper-aluminum alloy deposited on a substrate by a steaming or sputtering method. This color shift is due to the phase change of the material structure.