File:Corindon structure cristalline.svg
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[edit]DescriptionCorindon structure cristalline.svg | Crystal structure of corundum |
Date | |
Source | Own work |
Author | Christophe Dang Ngoc Chan (cdang) |
Permission (Reusing this file) |
GFDL |
Le corindon (α-Al2O3) a une structure rhomboédrique (groupe d'espace n° 167, notation Strukturbericht D51), dont les paramètres de maille sont
- a = 5,128 Å ;
- α = 55,47 °.
Le motif est composé de deux groupements hexaédriques dont la hauteur fait 2,73 Å. Les plan de symétrie de ces hexaèdres sont séparés d'une distance de 7,21 Å.
The corundum (α-Al2O3) has a rhombohedral structure (space group nr. 167, Strukturbericht notation D51), which cell parameters are:
- a = 5.128 Å ;
- α = 55.47 °.
The motto is made of two hexaheral groups which height is 2.73 Å. The symetry planes of the groups are 7.21 Å away.
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