Magnesium oxide
Numéro d’image : 11522466
| False-colour scanning electron micrograph (SEM) of a specimen of magnesium oxide ceramic showing the effects of rapid heat-treatment with a laser beam. The smooth grains at bottom have a well-sintered microstructure; the powder from which the ceramic is made has compacted together at a temperature below its melting point. Above,the ceramic has been melted by the laser beam. The granular region consists of small crystals that have grown only a little due to rapid cooling. At top,more prolonged melting & slower cooling has produced grains with a dendrite structure. Magnification: x75 at 35mm size. Yellow tint. Ref: MICROCOSMOS,fig. 7.9,page 130 | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / JOHN P. POLLINGER & GARY L. MESSING |
| Taille de l’image : | 2391 px × 5352 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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