File:Empilement compact.svg

[edit] Summary

Il y a deux manières de poser un plan compact sur un autre. Si l'on empile trois plans compacts, on a donc deux solutions :

• aucun plan ne se superpose (ABC), l'empilement est dit « cubique à faces centrées » (cfc) ;
• le troisième plan se superpose au premier (ABA), l'empilement est dit « hexagonal compact » (hc).

There are two ways to put a compact plane atop of another. When three compact planes are piled up, there are thus two situations:

• the planes cannot be superimposed (ABC), this is a "face centered cubic" (fcc) structure;
• the third plane is superimposed on the first one (ABA), this is an "hexagonal close-packing" (hcp).

[edit] Licensing

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Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	15:33, 11 May 2006		700 × 625 (79 KB)	Cdang	same, but no transparency
	15:22, 11 May 2006	No thumbnail	0 × 0 (79 KB)	Cdang	{{Information| |Description=Close packing |Source=self-made |Date=11 May 2006 |Author=Christophe Dang Ngoc Chan (user:cdang) |Permission=GFDL |other_versions= }}

• Kepler conjecture
• Sphere packing

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