Homogeneous And Transparent Protective Coatings For Precious Metals And Copper Alloys And Preparation Method Thereof

Homogeneous and transparent protective coatings for precious metals and copper alloys and techniques for forming the coatings on precious metals and copper alloys are provided. In an embodiment, ionic oxide film is deposited onto a surface of a substrate including a metal, such as a precious metal and/or a copper alloy, by using pulsed chemical vapor deposition (PCVD). A homogenous and transparent solid film based on ionic oxide is formed on the surface of the substrate in response to the depositing. 提供种用于贵金属和铜合金表面的均质且透明的保护涂层以及在贵金属和铜合金上制备涂层的技术。在个实施例中，使用脉冲化学气相沉积(PCVD)将离子氧化物薄膜沉积在包括诸如贵金属和/或铜合金的金属衬底表面上。基于该沉积，在金属衬底表面上形成的离子氧化物薄膜具有均质兼透明的特性。