This page contains an image of a sodium chloride crystal partially covered with a water film. The image was obtained with a water vapour pressure of 4.3 Torr into the analysis chamber of the SEM. The salt crystal was maintained at a temperature of 3.5 °C during image acquisition. The small marker at the right bottom of the image represents a length of 200 µm (0.2 mm). This kind of analysis allows for the in-situ observation of dynamical processes. The collection of sequential images during the analysis makes it possible to produce movies. To buy a 300 dpi image or the movie of crystal dissolution in water.To buy a 300 dpi image or the salt dissolution movie..
| The movie below (260 kb) is a short and low-resolution version of the original one. You can see a NaCl crystal progressively submerged by a water film and dissolved partially. By lowering the water vapour pressure into the analysis chamber, the crystal reappears with a different re-crystallization shape. |
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Last updated: January.22.2006
Images are ESEMIR ownership. For any use, ask for permission.
