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    • 1. 发明授权
    • Oxidation of chromium surfaces
    • 铬表面氧化
    • US3963528A
    • 1976-06-15
    • US561260
    • 1975-03-24
    • Walter FedrowitzRudolf G. Frieser
    • Walter FedrowitzRudolf G. Frieser
    • C23C22/60C23C22/64C23C22/68G03F1/00G03F1/08C23F7/02
    • C23C22/64
    • A method for forming an oxidized chromium film on the surface of chromium metal in a controlled manner which involves the use of a permanganate solution. The chromium metal film is first subjected to a basic hydrogen peroxide solution. The chromium surface is then removed from the hydrogen peroxide solution and immersed in an aqueous permanganate solution maintained at a temperature less than about 100.degree. C. for a time preferably within 1 to 5 minutes. At this time the chromium film has been oxidized to the desired thickness depending upon the time and temperature at which the surface has been subjected to the solutions. The surface is removed from the permanganate solution and dried. Should additional thickness of chromium oxide films be desired, the surface is intermittently subjected to the permanganate solution and dried to build up the desired thickness of chromium oxide.
    • 以金属铬表面形成氧化铬膜的方法,该方法包括使用高锰酸盐溶液。 首先对铬金属膜进行碱性过氧化氢溶液处理。 然后将铬表面从过氧化氢溶液中除去,并浸入保持在低于约100℃的温度的高锰酸盐溶液中优选1至5分钟的时间。 此时,铬膜已经被氧化成所需的厚度,这取决于表面经受溶液的时间和温度。 将表面从高锰酸盐溶液中除去并干燥。 如果需要额外厚度的氧化铬膜,则表面间歇地经受高锰酸盐溶液并干燥以形成所需厚度的氧化铬。