Hydrated MgO smoke crystals from cubes to octahedra

Romain Hacquart (1) , Jacques Jupille (1)

1 INSP - Institut des Nanosciences de Paris

Upon dissolution in liquid water at neutral pH, the cubic MgO smoke crystals give rise to octahedra with (111) facets, an evolution which is fully consistent with theoretical predictions. The first changes to show up during the dissolution process are jagged (110) cuts of the <100> cube edges. Then, (111) cuts develop at the cube corners till they become the dominant features of the dissolving crystals.

Domaines: Matériaux; Science des matériaux [cond-mat.mtrl-sci]

Romain Hacquart, Jacques Jupille. Hydrated MgO smoke crystals from cubes to octahedra. Chemical Physics Letters, 2007, 439, pp.91. ⟨10.1016/j.cplett.2007.03.044⟩. ⟨hal-00380254⟩