Department of Metallurgical and Materials Engineering

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Ünalan, Hüsnü Emrah (179)
Mehrabov, Amdulla (122)
Gür, Cemil Hakan (112)
Karakaya, İshak (106)
Ercan, Batur (100)

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1967 - 1979 (117)
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2020 - 2025 (355)

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Recent Submissions

Tuning the lattice strain through manipulating crystal structure of high entropy oxides enhances electrocatalytic performance Coskuner, Ali Burcay; Erdil, Tuncay; Özgür, Çağla; Geyikci, Uygar; Toparlı, Çiğdem (2025-06-01) This study investigated the effects of crystal structure on the electrocatalytic OER and ORR performance. High-entropy oxides were synthesized, yielding rock-salt (HRS) and spinel cubic (HSP) crystal structures. Overpotent...
Overcoming instability challenges of binder-free, self-standing 1T-TiS2 electrodes in aqueous symmetric supercapacitors through dopamine functionalization Ucar, Ali Deniz; Baglicakoglu, Sumeyye Kandur; Durukan, Mete Batuhan; Cugunlular, Murathan; Öz, Sena; Kocak, Yusuf; Ülgüt, Burak; Ozensoy, Emrah; Ünalan, Hüsnü Emrah (2025-03-01) Two-dimensional materials draw considerable interest for energy storage. Semimetallic phases of transition metal dichalcogenides (TMDs), notably titanium disulfide (TiS2), are extensively studied for their distinctive elec...
ALD grown undoped ZnO and Al-doped-ZnO thin-film heaters Tugrul, Deniz; Doğanay, Doğa; Ünalan, Hüsnü Emrah; İmer, Muhsine Bilge (2025-03-01) TTFHs require conductive thin-film materials with high transparency in the visible spectrum. Although, ITO is considered as the common material, and alternative materials, such as networks of carbon nanotubes, graphene, si...
Textile energy storage: Utilizing binary nickel cobalt metal-organic frameworks and polypyrrole-derived nitrogen-enriched carbons Hekmat, Farzaneh; Ünalan, Hüsnü Emrah (2025-02-28) Developed as electrode-active materials, nickel‑cobalt bimetallic metal organic frameworks (MOFs) demonstrate impressive capacitive performance. In this study, highly porous Ni–Co MOFs were directly grown onto commercial c...
Manganese-doped iron sulfide nanoplatelets on carbon cloth: A negative electrode material for flexible and wearable supercapacitors Gözütok, Almila Nur; Durukan, Mete Batuhan; Kocak, Yusuf; Ozensoy, Emrah; Ünalan, Hüsnü Emrah; Nalbant Esentürk, Emren (2025-02-15) Herein, we report the direct growth of manganese-doped iron sulfide (pyrrhotite) nanoplatelets on the carbon cloth (CC) fibers by a one-step hydrothermal method without the need for organic binders. Manganese-doped iron su...
Modeling and design for metal hydride-based hydrogen storage systems in underwater PEMFC applications Sezgin, Berna; Öztürk, Tayfur; Eroğlu, İnci (2025-02-01) Utilizing metal hydride materials presents a promising avenue for establishing a highly concentrated hydrogen medium suitable for onboard vehicle applications, including underwater contexts. This paper introduces a design ...
Achieving superior strength and ductility in oxide dispersion strengthened IN625 alloy produced by laser powder bed fusion Demirci, K.T.; Özalp, Ali; Gurbuz, S.N.; Bukulmez, I.; Aksu, E.; Aydoğan Güngör, Eda (2025-02-01) In this study, a new grade of oxide dispersion strengthened (ODS) Inconel 625 (IN625) alloy having the composition of 0.3 wt% Y2O3 – 0.4 wt% Hf – IN625 has been developed and produced by laser powder bed fusion (L-PBF). Pr...
Effect of morphology on the optical limiting of BiVO4 films Tekin, Sezen; Tutel, Yusuf; KARATAY, AHMET; Emrah Unalan, Husnu; ELMALI, AYHAN (2025-02-01) Precise control over the morphology and crystal structure of semiconductor-based optical materials is essential for optimizing their nonlinear optical properties. Morphological factors significantly affect the material's i...
Doped NaMnOx cathodes for Zn-MnO2 batteries for improved capacity and rechargeability Akbas, Yigit; Darıcıoğlu, Necdet Özgür; Öztürk, Tayfur (2025-02-01) Zn-MnO2 batteries are safe, low cost, and have a high energy density comparable to Li-ion batteries. This study focuses on finding a new MnO2-based cathode composition for rechargeable mildly acidic Zn-MnO2 battery. For th...
Influence of the heat treatment on the microstructure, mechanical and high-temperature oxidation behavior of Hastelloy X alloy fabricated via laser powder bed fusion Ozer, Seren; Yalçın, Mustafa Alp; Bilgin, Güney Mert; Davut, Kemal; Esen, Ziya; Dericioğlu, Arcan Fehmi (2025-01-25) The effect of building direction and heat treatment on the microstructure, mechanical properties, and high-temperature oxidation behavior of Hastelloy X (HX) alloy fabricated by the laser powder bed fusion (L-PBF) method w...
Thermomechanical process modelling and simulation for additive manufacturing of nanoparticle dispersed Inconel 718 alloys: Thermomechanical process modelling and simulation: E. Yousefimiab et al. Yousefimiab, E.; Kendibilir, A.; Yalçın, Yasemin; Cardillo, C.; Aydoğan Güngör, Eda; Kefal, A. (2025-01-01) In this study, a coupled transient thermomechanical finite element model is developed to examine the laser powder bed fusion (L-PBF) process of the Inconel 718 (IN718) and Oxide Dispersion Strengthened (ODS) superalloys (O...
Effect of tin alloying on the corrosion behavior and discharge performance of aluminum anodes for aluminum-air batteries Öksüz, Bilgehan Çetinöz; ERDOĞAN, METEHAN; Karakaya, İshak (2025-01-01) Aluminum-air batteries (AAB) are alternative to common commercial batteries like lithium-ion batteries due to their high theoretical energy density, low cost, and environmental friendliness. However, the formation of a pro...
Putting error bars on density functional theory Yuk, Simuck F.; Sargın, Irmak; Meyer, Noah; Krogel, Jaron T.; Beckman, Scott P.; Cooper, Valentino R. (2024-12-01) Predicting the error in density functional theory (DFT) calculations due to the choice of exchange–correlation (XC) functional is crucial to the success of DFT, but currently, there are limited options to estimate this a p...
Magnetic and luminescence properties of bioactive glass nanoparticles for biomedical applications Ünal, Fatma; Ercan, Batur (2024-12-01) This study explores the synthesis and characterization of superparamagnetic iron oxide nanoparticles (SPIONs) coated with zinc (Zn) and/or europium (Eu) doped bioactive glass. Scanning Electron Microscopy (SEM) and Transmi...
A comprehensive study of the effect of scanning strategy on IN939 fabricated by powder bed fusion-laser beam Doğu, Merve Nur; Ozer, Seren; Yalçın, Mustafa Alp; Davut, Kemal; Obeidi, Muhannad Ahmed; Şimşir, Caner; Gu, Hengfeng; Teng, Chong; Brabazon, Dermot (2024-11-01) This study provides a comprehensive investigation into the effects of different scanning strategies on the material properties of IN939 fabricated using the PBF-LB process. The scanning strategies examined included alterna...
Oxide coated nickel powder as support for platinum(0) nanoparticles: Magnetically separable catalysts for hydrogen generation from the hydrolysis of ammonia borane Akbayrak, Serdar; Çakmak, Gülhan; Öztürk, Tayfur; Özkar, Saim (2024-10-15) We report the development of a novel method for the preparation of magnetically separable platinum nanoparticles. Magnetic nickel nanopowder is initially synthesized in a radiofrequency plasma reactor where in-line passiva...
Earth-Abundant Divalent Cation High-Entropy Spinel Ferrites as Bifunctional Electrocatalysts for Oxygen Evolution and Reduction Reactions Erdil, Tuncay; Özgür, Çağla; Geyikci, Uygar; LÖKÇÜ, ERSU; Toparlı, Çiğdem (2024-09-23) High-entropy spinel ferrites (HESFs) offer long-term stability and activity in oxygen electrochemical reactions due to entropy stabilization and synergistic effects of multiple elements within their crystal structure. Howe...
Antibacterial Silk Fibroin/Carbon Nanofiber Composites for Wound Dressing Karaaslan, Gizem; Tufan, Yiğithan; Ercan, Batur (2024-09-21)
Biocompatible Janus microparticle synthesis in a microfluidic device Saqib, Muhammad; Tufan, Yiğithan; Orsel, Z. Cemre; Ercan, Batur; Erdem, E. Yegan (2024-09-01) Janus particles are popular in recent years due to their anisotropic physical and chemical properties. Even though there are several established synthesis methods for Janus particles, microfluidics-based methods are conven...
B‐Site Doping Boosts the OER and ORR Performance of Double Perovskite Oxide as Air Cathode for Zinc‐Air Batteries Ozgur, Cagla; Erdil, Tuncay; Geyikci, Uygar; Yildiz, Ilker; Lokcu, Ersu; Toparlı, Çiğdem (2024-09-01)

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