Iron crystalizes in two bcc lattices, the alpha- from below 910^(@) and the gamma-form above 1400^(@)C, and in an fcc gamma-atom between these two temperatures. What is the maximum such a void to the host iron ion radius?

Iron crystalizes in two bcc lattices, the alpha- from below 910^(@) an

1.	Iron crystalizes in two bcc lattices, the alpha- from below 910^(@) and the gamma-form above 1400^(@)C, and in an fcc gamma-atom between these two temperatures. What is the maximum such a void to the host iron ion radius?
Answer» 0.29 0.1 0.05 0.15 Solution :`(r_(V)/(r_(FE)))=(SQRT((5)/(3)-1))=0.291`