Abstract
The structural, electronic, elastic, mechanical and thermal properties of AlFe intermetallic compound in B2-type (CsCl) structure have been investigated using first-principles calculations. The exchange-correlation term was treated within generalized gradient approximation. Ground state properties i.e. lattice constants (a0), bulk modulus (B) and first-order pressure derivative of bulk modulus (B’) are presented. The density of states are derived which show the metallic character of present compound. Our results for C11, C12 and C44 agree well with previous theoretical data. Using Pugh’s criteria (B/GH < 1.75), brittle character of AlFe is satisfied. In addition shear modulus (GH), Young’s modulus (E), sound wave velocities and Debye temperature (θD) have also been estimated.
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