Crystallography wikipedia

  • Types of crystallography

    Lawrence Bragg (left) and William Henry Bragg.
    Employing a clever instrument and mathematics, the Braggs developed x-ray photographs of crystals, revealing how their atoms were arranged.
    From there, they were able to construct three-dimensional models or diagrams of atomic structures..

  • Types of crystallography

    The crystals are generally formed when some type of liquid starts cooling down and ultimately creates a solid structure.
    This is the process of how crystals form in rocks.
    They mainly develop when liquid rocks like magma start to cool down..

Crystallography is used by materials scientists to characterize different materials. In single crystals, the effects of the crystalline arrangement of atoms is often easy to see macroscopically because the natural shapes of crystals reflect the atomic structure.

Vue d’ensemble

La cristallographie est la science qui se consacre à l'étude des cristaux à l'échelle atomique

Histoire

Le cristal, d'abord simple objet de curiosité, passionna les collectionneurs avant d'intriguer les savants qui, en étudiant sa structure

Les bases

La matière solide est composée d' atomes, que l'on peut voir comme des boules élémentaires

Le cristal parfait et la maille élémentaire

Le « cristal parfait » est un modèle utilisé pour représenter la structure de la matière cristalline

Symétrie

Un réseau est un ensemble de points ou « nœuds » en trois dimensions qui présente la propriété suivante : lorsque l'on se translate dans l‘espace

Crystallography - Simple English Wikipedia, the free encyclopedia Crystallography Crystallography is the study of the arrangement of atoms in solids that are mostly in three dimensional pattern. Before the development of X-ray crystallography, the study of crystals was based on their geometry.
Phase transformation crystallography describes the orientation relationship and interface orientation after a phase transformation.

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