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NaCl Structure Crystals

The bond modulus may be calculated from the bulk modulus, B, of the crystal [20] yielding the relationship

equation920

The results for the NaCl structure crystals studied are shown in Table gif.

 

Crystal tex2html_wrap_inline2870 B ( tex2html_wrap_inline2874 Pa) (ref [54]) tex2html_wrap_inline2591 (Å) k ( tex2html_wrap_inline2880 )
NaF 0.18 4.83 2.31 200
NaCl 0.22 2.40 2.82 122
NaI 0.19 1.60 3.24 93
MgO 0.34 15.9 2.11 604
TiC 0.52 24.2 1.57 684
MgS 0.40 8.9 2.60 417
Table: Mulliken overlap populations, bulk moduli, equilibrium bond lengths and bond moduli for a series of NaCl structure crystals.

 

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Matthew Segall
Wed Sep 24 12:24:18 BST 1997