Coloured SEM of a copper honeycomb structure

Coloured SEM of a copper honeycomb structure

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Credit: EYE OF SCIENCE/SCIENCE PHOTO LIBRARY

Caption: Honeycomb filter. Coloured scanning electron micrograph of a three-dimensional honeycomb struc- ture made of copper. Structures like this can be used as particle filters for fuel and as filters for far infrared radiation in astronomy. The hexagonal chambers may also store materials needed for other processes. The honeycomb structure was made using LIGA technology. LIGA is a German acro- nym for the phrase "Lithographie, Galvanoformung, Abformung". During the LIGA process, X-rays are shone in a pattern onto a substrate. The X-rays alter the properties of the exposed areas so that they can be washed away to leave a microstructure. Magnification: x80 at 6x6cm size.

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Keywords: copper, copper honeycomb structure, engineering, filter, hexagonal, honeycomb, honeycomb structure, infrared filter, liga technology, metallic, micro, microfilter, new materials technology, particle filter, produced by, sem

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