Yazar "Akyıldız, Öncü" için Metalurji ve Malzeme Mühendisliği Bölümü listeleme
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Dynamics of phase transformation in LiFePO4 in battery electrode
Yu, Huichia; Orvañanos, Bernardo; Akyıldız, Öncü; Thornton, Katsuyo (International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, 2015)[No abstract available] -
Particle-size and morphology dependence of the preferred interface orientation in LiFePO4 nano-particles
Abdellahi, Aziz; Akyıldız, Öncü; Malik, Rahul; Thornton, Katsuyo; Ceder, Gerbrand (Royal Society of Chemistry, 2014)We gain new insights into the equilibrium properties and potential two-phase lithiation mechanisms in LiFePO4 nano-particles by conducting a first-principles investigation of the anisotropic chemical interfacial energy ... -
Simulation of phase equilibria in high chromium white cast irons
Akyıldız, Öncü; Candemir, Duygu; Yıldırım, Hakan (Uludağ University, 2018-12)In this study, using the Materials Calculator software program, the pseudo binary phase diagrams (i.e. isoplethal maps) of high chromium white cast irons (~19% in weight) with different molybdenum contents were simulated. ... -
Synthesis, characterization and electrochemical performance of Nb doped LiFePO4/C cathodes by mechanochemical activation
Bağcı, Cengiz; Akyıldız, Öncü (Hitit University, 2018)We synthesized Nb-doped LiFePO4/C nano composite cathode materials by mechanochemical activation followed by a single step calcination. The starting chemicals of Li2CO3, FeC2O4.2H2O, NH4H2.PO4 and C6H8O7 as lithium, iron, ... -
Thermal grooving by surface diffusion: a review of classical thermo-kinetics approach
Akyıldız, Öncü; Oğurtanı, Tarık Ömer (Hitit University, 2017)In polycrystalline materials wherever a grain boundary intersects a free surface and whenever the topographic variation associated with the atomic motion is favored by total free energy dissipation, the material surface ... -
The thermodynamic stability of intermediate solid solutions in LiFePO4 nanoparticles
Abdellahi, Aziz; Akyıldız, Öncü; Malik, Rahul; Thornton, Katsuyo; Ceder, Gerbrand (Royal Society of Chemistry, 2016)Theoretical predictions from first principles and recent advances in in situ electrochemical characterization techniques have confirmed the presence of solid-solution states during electrochemical (de)lithiation of LiFePO4 ... -
Yönlendirilmiş enerji bırakımlı eklemeli imalat süreçlerinde meydana gelen metalurjik faz dönüşümlerinin sonlu elemanlar yöntemi kullanılarak benzetilmesi
Baykasoğlu, Cengiz; Akyıldız, Öncü; Tunay, Merve (2019)Son yıllarda popülerlik kazanmış olan eklemeli imalat teknolojileri kullanılarak önceden imalatı veya tamiri oldukça zor veya imkânsız olan yapısal parçalar metalik, seramik, polimer ve karma malzemeler kullanılarak imal ...