ORCID "0000-0002-0081-1642" Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed için 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] -
A fully coupled thermal–microstructural–mechanical finite element processmodel for directed energy deposition additive manufacturing of Ti–6Al–4V
Tuna; Baykasoğlu, Cengiz; Akyıldız, Öncü; C.To, Albert (TAYLOR & FRANCIS LTD, 2023)A fully coupled thermal–microstructural–mechanical finite element modelling framework is developed to investigate the distortion and residual stresses during directed energy deposition (DED) of multi-phase Ti–6Al–4V alloy. ... -
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 ... -
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 ...