crystal structures question

darkelf

Hello, can anyone help me out the the relationship of the atomic radius R with the lattice parameter a for a Hexagonal close packed cystals (HCP) and how to prove the ratio of a:C is 1.633.

Any information on this issues would be appreciated. Thanks

Gokul43201

This should get you going: http://physicsforums.com/showpost.ph...71&postcount=2

If you have any trouble, show what you've done and which part you are stuck at, and someone will help you from there.

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darkelf	crystal structures question Tweet Hello, can anyone help me out the the relationship of the atomic radius R with the lattice parameter a for a Hexagonal close packed cystals (HCP) and how to prove the ratio of a:C is 1.633. Any information on this issues would be appreciated. Thanks

Gokul43201 Recognitions: Gold Member Science Advisor Staff Emeritus	This should get you going: http://physicsforums.com/showpost.ph...71&postcount=2 If you have any trouble, show what you've done and which part you are stuck at, and someone will help you from there.