structure of crystals


by Ezio3.1415
Tags: crystals, structure
Ezio3.1415
Ezio3.1415 is offline
#1
Feb13-13, 11:42 AM
P: 158
What would be the structure of the crystal if rc/ra=1? hexagonal closed packed or anything else?

What would be the structure of the crystal if rc/ra< .23 ?

What would be the structure of the crystal if rc/ra>1 ?
Phys.Org News Partner Science news on Phys.org
Better thermal-imaging lens from waste sulfur
Hackathon team's GoogolPlex gives Siri extra powers
Bright points in Sun's atmosphere mark patterns deep in its interior
Ezio3.1415
Ezio3.1415 is offline
#2
Feb13-13, 11:45 AM
P: 158
PS: rc=radius of cation
ra=radius of anion

And I am not talking about crystal lattice... That is cubic here I think...
I am talking about co ordination of the crystal molecules,atoms,ions...
Ezio3.1415
Ezio3.1415 is offline
#3
Feb19-13, 11:17 AM
P: 158
no one seems interested?


Register to reply

Related Discussions
SSSI (structure-soil-structure interaction) General Engineering 4
Isotropic crystals & anisotropic crystals Materials & Chemical Engineering 2
term structure isomorphic to the usual model/structure of number theory Set Theory, Logic, Probability, Statistics 2
Symplectic structure vs. metric structure General Physics 2
subtle background structure in deep astronomy photos; CSL-1 cosmic string gravitational lens in Capodimonte Deep Field; Millennium Simulation of evolving cosmic structure; AstroDeep group; Murray mesh; www.Flickr.com evolving cosmic structure; As General Physics 1