Journal of Pure and Applied Ultrasonics

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Temperature dependent ultrasonic characterization of AuRE intermetallics


Affiliations
1 Department of Physics, P.P.N. (P.G.) College, Kanpur, Uttar Pradesh-208 001, India., India
2 Department of Physics, United College of Engineering & Research, Naini, Prayagraj, Uttar Pradesh-211 010, India., India
 

The present work incorporates computation of elastic, ultrasonic and thermal properties of B2 structured AuRE (RE= Sm, Tb, Ho, Tm) intermetallics in temperature range 300K-900K. Initially, elastic constants are determined under potential model approach. Later on, ultrasonic velocities are obtained in the same temperature range for wave propagation along and crystallographic directions. Besides it, Debye temperatures, thermal energy density, thermal expansion coefficient and melting temperature are also determined for chosen intermetallics. The obtained results are compared and analyzed to explore the inherent properties the chosen material.

Keywords

Rare-Earth Intermetallics, Elastic Properties, Ultrasonic Velocity, Thermo-Physical Properties.
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  • Temperature dependent ultrasonic characterization of AuRE intermetallics

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Authors

Mohd Aftab Khan
Department of Physics, P.P.N. (P.G.) College, Kanpur, Uttar Pradesh-208 001, India., India
Chandreshvar Prasad Yadav
Department of Physics, P.P.N. (P.G.) College, Kanpur, Uttar Pradesh-208 001, India., India
Mahendra Kumar
Department of Physics, P.P.N. (P.G.) College, Kanpur, Uttar Pradesh-208 001, India., India
Dharmendra Kumar Pandey
Department of Physics, P.P.N. (P.G.) College, Kanpur, Uttar Pradesh-208 001, India., India
Devendra Nath Mishra
Department of Physics, United College of Engineering & Research, Naini, Prayagraj, Uttar Pradesh-211 010, India., India
Renuka Arora
Department of Physics, P.P.N. (P.G.) College, Kanpur, Uttar Pradesh-208 001, India., India

Abstract


The present work incorporates computation of elastic, ultrasonic and thermal properties of B2 structured AuRE (RE= Sm, Tb, Ho, Tm) intermetallics in temperature range 300K-900K. Initially, elastic constants are determined under potential model approach. Later on, ultrasonic velocities are obtained in the same temperature range for wave propagation along and crystallographic directions. Besides it, Debye temperatures, thermal energy density, thermal expansion coefficient and melting temperature are also determined for chosen intermetallics. The obtained results are compared and analyzed to explore the inherent properties the chosen material.

Keywords


Rare-Earth Intermetallics, Elastic Properties, Ultrasonic Velocity, Thermo-Physical Properties.

References