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Unformatted text preview: Stability requires that the ratio of cation to anion size ion be sufficiently large for the cation to touch all the anions surrounding it. The smaller an ion is, the fewer ions can surround it i.e., smaller coordination number, and be stable. 5. Define anisotropy and give an example of a material property which might show anisotropy. 3 pts Anisotropy is the ability of a material to respond differently to the same stimulus applied in different directions. Anisotropy may exist for the elastic modulus, electrical conductivity, index of refraction, and other properties. Interatomic separation Energy of attraction Energy of repulsion E A E R E N r...
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This homework help was uploaded on 03/26/2008 for the course ENGR 213 taught by Professor Dr.stubbs during the Fall '04 term at Texas A&M.
- Fall '04