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Investigations of Structural, Elastic, Electronic and Thermodynamic Properties of X2TiAl Alloys: A Computational Study      
Yazarlar
Selgin Al
Kırşehir Ahi Evran Üniversitesi, Türkiye
Nihat Arıkan
Kırşehir Ahi Evran Üniversitesi, Türkiye
Doç. Dr. Ahmet İYİGÖR
Kırşehir Ahi Evran Üniversitesi, Türkiye
Özet
First-principle calculations have been adopted in order to reveal and deeply understand the structural, electronic, elastic, thermodynamic, and vibrational properties of full-Heusler X2TiAl (X = Au, Ru, and Zr) alloys in the L2(1) phase. The fundamental physical properties such as bulk modulus, its pressure derivative, anisotropy factor, shear modulus, Poisson's ratio, Cauchy pressure, elastic constants, heat capacity, thermal expansion coefficient, and Young's modulus are obtained and compared with the literature. Debye temperature and Gruneisen parameter are also evaluated over the temperature range of 0-1500 K. Electronic band structures and their partial density of states and phonon dispersion curves are presented for all alloys and used to interpret the electronic and mechanical properties and stabilities of alloys in the L2(1) phase.
Anahtar Kelimeler
DFT, Elastic Constant, Electronic Structure, First Principle, Phonon
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Zeitschrift für Naturforschung A
Dergi ISSN 1865-7109
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 09-2018
Cilt No 73
Sayı 9
Sayfalar 859 / 867
Doi Numarası 10.1515/zna-2018-0207
Makale Linki http://www.degruyter.com/view/j/zna.2018.73.issue-9/zna-2018-0207/zna-2018-0207.xml