Phénomène de croissance apparaissant sur les dépôts de lithium préparés sous ultra vide statique, et soumis à l'action de l'air

The action of air on thin layers of lithium prepared under a static ultrahigh vacuum is investigated. It is shown, during the degradation, that small grains develop at the metal surface. The growth of these small grains, whose contours are regular, takes place in an orderly manner. The presence of LiOH and LiNO3 in degraded films are shown, using electron diffraction patterns.