| 摘要 |
<p>A wide bright variety of colors within the visible spectrum may be obtained through light interference and multiple refraction in an anodized aluminium product by electrolytic deposition, on an aluminium substrate, of an anodic film of aluminium oxide, separated from the substrate by an interface of aluminium/aluminium oxide. The anodic film of aluminium oxide is comprised of at least three anodic layers of superimposed aluminium oxide which have different porosities and which are separated between each other by interfaces, the most internal of the anodic layers having a non-porous barrier layer arranged between the lower portion of its pores and the aluminium/aluminium oxide interface. Inorganic pigment material is deposited into the pores of the superimposed anodic layers and at least in portions of the interfaces between the layers, thereby producing the various colors by variation of the current and/or the time of deposition of the most internal anodic layer of aluminium oxide.</p> |
