Elastic constants of Dy 2 Fe 14 B crystal by ab-initio calculations

Abstract

This paper concerns the elastic properties of Dy₂Fe₁₄B crystal investigated by ab-initio calculations. We determined the elastic constants of the considered crystal: C ₁₁ = 297, C ₁₂ = 92, C ₁₃ = 99, C ₃₃ = 287, C ₄₄ = 82, C ₆₆ = 80 GPa. Moreover, estimated from elastic constants physical properties (acoustic wave velocities, elastic moduli, Debye and melting temperature) are consistent with the reference data obtained for other (RE)₂Fe₁₄B crystals.

Keywords

Permanent magnet atomistic modelling elastic properties

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