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First-principles studies of Ti n1 SiN n (n = 1, 2, 3) MAX phase      
Yazarlar
Gökhan Sürücü
Kırşehir Ahi Evran Üniversitesi, Türkiye
Hasan Hüseyin Güllü
Atılım Üniversitesi, Türkiye
Doç. Dr. Abdullah CANDAN Doç. Dr. Abdullah CANDAN
Kırşehir Ahi Evran Üniversitesi, Türkiye
Buğra Yıldız
Hacettepe Üniversitesi, Türkiye
Aytaç Erkişi
Pamukkale Üniversitesi, Türkiye
Özet
In this study, the structural, electronic, mechanical, lattice dynamical and thermodynamic characteristics of ( 1, 2 and 3) phase compounds were investigated using the first principle calculations. These ternary nitride compounds were found to be stable and synthesisable, and the results on the stability nature of them were also evaluated for the possible and phases. -was found to be the most stable one among these new class of layered phases for which limited works are available in the literature. The band structures, that are essential for the electronic properties, were determined along with the partial density of states (PDOS) indicating the metallic behaviour of these compounds. The polycrystalline elastic moduli were calculated based on the single-crystal elastic constants and the mechanical stabilities were verified. Some basic physical parameters, such as bulk modulus, shear modulus, Young's modulus, Poisson's ratio, Debye temperature, and sound velocities, were also predicted. Furthermore, the anisotropic elastic properties were visualised in three dimensions (3D) for Young's modulus, linear compressibility, shear modulus and Poisson's ratio as well as with the calculation of the anisotropic factors. - phase showed the most isotropic characteristics with minimum deviations. These theoretical values were also used to identify the stiffness and ionic characteristics. The phonon dispersion curves and corresponding PDOS indicated that compounds were dynamically stable. Moreover, thermodynamic properties obtained from phonon dispersion curves were investigated in detail.
Anahtar Kelimeler
Nitride MAX phases, first principles, electronic structures, mechanical properties
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı PHILOSOPHICAL MAGAZINE
Dergi ISSN 1478-6435
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 09-2020
Cilt No 100
Sayı 17
Sayfalar 2183 / 2204
Doi Numarası 10.1080/14786435.2020.1759835
Makale Linki https://www.tandfonline.com/doi/full/10.1080/14786435.2020.1759835
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
SCOPUS 7
Google Scholar 8
First-principles studies of Ti n1 SiN n (n = 1, 2, 3) MAX phase

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