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Crystal structures question

  1. May 24, 2008 #1
    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
  2. jcsd
  3. May 25, 2008 #2


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