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In Reply to: Re: "Disappearing" Getter Question posted by Jim McShane on March 22, 2006 at 09:32:41:
...are definitely NOT gases at room temperature. But as a thin layer they could be transparent, hence you don't see them anymore. Also, as you say, these compounds may accumulate into small partcles instead of a continuous metal film, so the film becomes partly transparent even if the material in the particles is not.
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- Barium oxide, nitride etc... - JJ Triode 14:22:57 03/22/06 (0)