False-colour high-resolution electron micrographs (HREM) of slip in an atomic lattice of gold. In nature,the crystalline symmetry of atoms in a solid is upset by stress; distortions occur along planes of weakness,or slip planes,where whole blocks of atoms slide over each other. The resistance of an atomic lattice to slip determines a material's bulk strength. When blocks of atoms move along parallel slip planes,twinning occurs. These 3 micrographs were taken 0. 07 seconds apart; the arrow shows the advance of a twin - the band of vertical atomic lattices. Magnification: x2. 5 million at 35mm size. (More information available) Yellow tint. Ref: MICROCOSMOS,fig. 7.3,p. 127 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / PROF. H. HASHIMOTO, OSAKA UNIVERSITY |
Taille de l’image : | 1783 px × 3811 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |