Here is an image of expanded polystyrene, which is extensively used in packaging and insulation. The image was obtained with a water vapour pressure of 3 Torr into the analysis chamber of the ESEM XL30 TMP Philips Electron Microscope. The small marker at the right bottom of the image represents a length of 100 µm (0.1 mm). To buy a 300 dpi image.

Secondary electron image coloured by computer aids.

The above photograph shows a detail of one of the facets that become visible by fracturing the polystyrene. The photograph below shows the specimen as it is.
optical image

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Last updated: February.12.2001

Images are ESEMIR ownership. For any use, ask for permission.