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Ab initio study of the structural electronic elastic and vibrational properties of the intermetallic Pd3V and Pt3V alloys in the L12 phase     
Yazarlar
Nihat Arıkan
Ahi Evran Üniversitesi, Türkiye
Doç. Dr. Ahmet İYİGÖR
Ahi Evran Üniversitesi, Türkiye
Doç. Dr. Abdullah CANDAN
Ahi Evran Üniversitesi, Türkiye
Doç. Dr. Mustafa ÖZDURAN
Ahi Evran Üniversitesi, Türkiye
Asım Karakoç
Şule Uğur
Gazi Üniversitesi, Türkiye
Gökay Uğur
Gazi Üniversitesi, Türkiye
Bouhemadou Abdelmadjid
Saad Binomran
Na Guechi
Özet
Pseudopotential plane-wave method based on density functional theory within the generalized gradient approximation for the exchange-correlation potential has been applied to study the structural, electronic, elastic and vibrational properties of the binary intermetallic Pd3V and Pt3V in the L1(2) phase. The optimized lattice constant, bulk modulus and its pressure derivative, independent single-crystal elastic constants and elastic wave velocities in three different directions are evaluated and compared with the available experimental and theoretical data. The polycrystalline elastic parameters, hardness coefficient, elastic anisotropy, Debye temperature are estimated. The electronic band structure, electronic total and partial densities of states, and total magnetic moment of the Pd3V and Pt3V alloys are computed and analyzed in comparison with the existing theoretical and experimental findings. Phonon-dispersion curves and their corresponding total and projected densities of states were obtained for the first time using a linear-response in the framework of the density functional perturbation theory.
Anahtar Kelimeler
intermetallics, crystal structures, mechanical properties, thermodynamic properties
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Metals and Materials International
Dergi ISSN 1598-9623
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 07-2014
Cilt No 20
Sayı 4
Sayfalar 765 / 773
Doi Numarası 10.1007/s12540-014-4022-1
Makale Linki http://link.springer.com/10.1007/s12540-014-4022-1