Image:Hafnium lump thin film effects.jpg

From Wikipedia, the free encyclopedia

Summary

Upper side of a lump of highly pure hafnium used for evaporating as HfO2 onto glass along with silica to form multi layer dielectric optics. The vibrant colors seen here are a result of the lump being exposed to air (oxygen) while it was still hot after being used in an evaporating chamber where it is melted and vaporized using high intensity electron beams. The oxidized upper surface of the lump formed layers of differing thickness which interact with ambient light via bragg diffraction to form rich saturated colors in reflection.

Licensing

File history

Click on a date/time to view the file as it appeared at that time.

Date/Time Dimensions User Comment
current 04:13, 24 December 2006 1,824×1,551 (434 KB) Deglr6328 ( Talk | contribs) (Upper side of a lump of highly pure hafnium used for evaporating as HfO<sub>2</sub> onto glass along with silica to form multi layer dielectric optics. The vibrant colors seen here are a result of the lump being exposed to air (oxygen) while it was still )

    See the setup instructions for more information.

The following pages on Schools Wikipedia link to this image (list may be incomplete):

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

The Schools Wikipedia is sponsored by SOS Children , and consists of a hand selection from the English Wikipedia articles with only minor deletions (see www.wikipedia.org for details of authors and sources). See also our Disclaimer.