The Hume-Rothery rules are guidelines used to predict the solubility limits of one metal in another, particularly in alloy formation. These rules help in understanding the conditions under which two metals can mix or form solid solutions. The Hume-Rothery rules are based on several criteria, which can be summarized as follows: 1. **Atomic Size Factor**: The atomic radii of the two metals should not differ by more than about 15%.
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