Pretty jewelry

Posted in Uncategorized by Mike Stay on 2010 March 9

The artist says the bands of color are due to a diffraction grating; the base is recycled titanium. Is it etched, or ground, or what? The page only says “a multistep process”.


3 Responses

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  1. davidstay said, on 2010 March 9 at 10:38 am

    Titanium is especially nice to work with for electrochemical formation of thin oxide layers. These layers are themselves transparent but they are thin enough to use the wave interference created when light reflected off the oxide interacts either constructively or destructively with the light reflected off the metal surface below.

  2. davidstay said, on 2010 March 9 at 10:44 am

    See Theodore Gray’s article in the August 2005 Pop Sci. Titanium in Technicolor where he does the anodization of Ti using soda pop as the electrolyte.

  3. reperiendi said, on 2010 March 9 at 2:10 pm

    Yay! Popular Science partnered with Google Books to put its 137-year archive online for free!

    My wedding ring is made of titanium–I may try this.

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