Açık Akademik Arşiv Sistemi

Browsing Makale Koleksiyonu by Title

Browsing Makale Koleksiyonu by Title

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  • Grain Growth Kinetics of Glass-Ceramic Produced From Power Plant Fly Ash 
    Demirkıran, Ayşe Şükran; Yılmaz, Şenol; Şen, Uğur (WILEY-BLACKWELL, 2011)
    Grain growth kinetics of the glassceramics produced from fly ash of Seyitomer power plant in Turkey has been investigated. In this process, fly ash was melted and casted as glass. Produced glass materials were heat treated ...
  • Graphene assisted template based LiMn2O4 flexible cathode electrodes 
    Aslihan Guler; Seyma Ozcan Duman; Deniz Nalci; Mustafa Guzeler; Bulut, Emrah; Bulut, Emrah; Güler, Mehmet Oğuz; Akbulut, Hatem (WILEY, 2018)
    In this paper, a systematic method has been developed to produce highly flexible and robust graphene/LiMn2O4 (G/LCMO) and graphene/LiCr0.05Mn1.95O4 (G/LMO) free-standing composite cathode electrodes with increased specific ...
  • Graphene assisted template based LiMn2O4 flexible cathode electrodes 
    Aslihan Guler; Seyma Ozcan Duman; Deniz Nalci; Mustafa Guzeler; Bulut, Emrah; Bulut, Emrah; Güler, Mehmet Oğuz; Akbulut, Hatem (WILEY, 2018)
    In this paper, a systematic method has been developed to produce highly flexible and robust graphene/LiMn2O4 (G/LCMO) and graphene/LiCr0.05Mn1.95O4 (G/LMO) free-standing composite cathode electrodes with increased specific ...
  • Graphene oxide/alpha-MnO2 nanocomposite electrodes produced using planetary ball milling for Li-O-2 batteries 
    Çetinkaya, Tuğrul; Tokur, Mahmud; Şeyma Özcan; Algül, Hasan; Uysal, Mehmet; Akbulut, Hatem (ELSEVIER SCIENCE BV, 2015)
    Graphene Oxide (GO)/alpha-MnO2 nanocomposite air breathing cathodes were prepared using mechanical alloying method. For preparation of GO/alpha-MnO2 nanocomposite cathodes, GO was produced by Hummer's method and alpha-MnO2 ...
  • Graphene supported alpha-MnO2 nanocomposite cathodes for lithium ion batteries 
    Çetinkaya, Tuğrul; Tokur, Mahmud; Seyma Ozcan; Uysal, Mehmet; Akbulut, Hatem (PERGAMON-ELSEVIER SCIENCE LTD, 2016)
    In this study, Graphene/alpha-MnO2 nanocomposite cathodes were produced using ultra-sonication and mechanical alloying facilities. Before production of Graphene/alpha-MnO2 composites, Graphene structure was fabricated by ...
  • Graphene supported heterogeneous catalysts for Li-O-2 batteries 
    M. Alaf; Toçoğlu, Ubeyd; Kartal, Muhammet; Akbulut, Hatem (ELSEVIER SCIENCE BV, 2016)
    In this study production and characterization of free-standing and flexible (i) graphene, (ii) alpha-MnO2/graphene, (iii) Pt/graphene (iv) alpha-MnO2/Pt/graphene composite cathodes for Li-air batteries were reported. ...
  • Growth Characteristics of Plasma Electrolytic Oxidation Coatings on Aluminum Alloys 
    Ayday, Aysun; Durman, Mehmet (POLISH ACAD SCIENCES INST PHYSICS, 2015)
    The ceramic coating on aluminum alloy was prepared in sodium metasilicate electrolyte by plasma electrolytic oxidation (PEO). The effect of PEO treating time on surface layer was investigated. The morphology and phase ...
  • Growth morphology and phase analysis of titanium-based coating produced by thermochemical method 
    Üstel, Fatih; Zeytin, Sakin (PERGAMON-ELSEVIER SCIENCE LTD, 2006)
    In the present study, high-speed tool steel was used to coat titanium by pack cementation technique. Coatings show a growth morphology similar to that of the chemical vapor deposition method. Time and temperature of the ...
  • Hard iron boride (Fe2B) on 99.97wt% pure iron 
    Özdemir, Özkan; Bindal, Cuma (PERGAMON-ELSEVIER SCIENCE LTD, 2006)
    Some properties such as hardness and fracture toughness of boride formed on the 99.97 wt% pure iron were investigated. Boronizing was carried out in a solid medium, consisting of Ekabor powders of 5% B4C as donor, 5% KBF4 ...
  • Hepatocellular Carcinoma and Liver Transplantation: A Single-Center Experience 
    Kamil Yalcin Polat; Sencan Acer; Genco Gencdal; Serafettin Yazar; Ahmet Kargi; Ramazan Donmez; Aslan, Serdar; Mustafa Emre Kavlak; Cigdem Arikan; Murat Akyildiz (ELSEVIER SCIENCE INC, 2020)
    Conclusion. A transplant decision is controversial in patients with HCC with other than previously defined morphologic criteria. In these cases, AFP level and histologic differentiation determine survival. The results were ...
  • High capacity Graphene/alpha-MnO2 nanocomposite cathodes for Li-O-2 batteries 
    Çetinkaya, Tuğrul; Akbulut, Hatem; Tokur, Mahmud; Seyma Ozcan; Uysal, Mehmet (PERGAMON-ELSEVIER SCIENCE LTD, 2016)
    Graphene/alpha-MnO2 nanocomposite cathodes containing various amount of alpha-MnO2 catalysts (10 wt.%, 30 wt.%, 50 wt.%) were produced using planetary ball milling. The charge-discharge characteristics of the Li-O-2 cells ...
  • High efficiency TiO2/MWCNT based anode electrodes for Li-ion batteries 
    Güler, Mehmet Oğuz; Çetinkaya, Tuğrul; Uysal, Mehmet; Akbulut, Hatem (WILEY, 2015)
    Freestanding multiwalled carbon nanotube and titanium (IV) oxide anode paper was prepared by vacuum filtration of multiwall carbon nanotubes/TiO2 hybrid material, which was synthesized by the radio frequency magnetron ...
  • High Rate Capability Core Shell SnO2/Multiwall Carbon Nanotube Nano Composite Electrodes for Li-Ion Batteries 
    Akbulut, Hatem; Güler, Mehmet Oğuz (AMER SCIENTIFIC PUBLISHERS, 2015)
    In this study, core shell SnO2/MWCNT nanocomposites were produced as a high rate anode material for Li-ion batteries via two steps. Firstly, MWCNT based buckypapers were produced via vacuum filtration techniques. Then, a ...
  • High stable Li-air battery cells by using PEO and PVDF additives in the TEGDME/LiPF6 electrolytes 
    Akbulut Uludağ, Ahsen; Tokur, Mahmud; Algül, Hasan; Çetinkaya, Tuğrul; Uysal, Mehmet; Akbulut, Hatem (PERGAMON-ELSEVIER SCIENCE LTD, 2016)
    An ether based electrolyte containing TEGDME/LiPF6 was optimized, which possessed low viscosity and high ionic conductivity, under dry argon atmosphere in a glove box. In order to prevent air breathing cathode clogging by ...
  • High temperature oxidation behavior of low temperature aluminized Mirrax (R) ESR steel 
    Yener, Tuba; Kadir Mert Doleker; Azmi Erdogan (IOP PUBLISHING LTD, 2019)
    The aim of this study was to investigate the effect of aluminizing process on the oxidation resistance of mirrax steel. The oxidation behavior of pack cemented aluminizing coatings on Mirrax ESR Steel was investigated at ...
  • High temperature Young's modulus of alumina short fibre reinforced Al-Si MMCs produced by liquid infiltration 
    Akbulut, Hatem; Durman, Mehmet; Yılmaz, Fevzi (INST MATERIALS, 1998)
    Metal matrix composites were produced with modified pressure liquid infiltration equipment using short delta-Al2O3 (Saffil) fibre preforms, containing 10, 15, 20, 25, and 30 vol.-% fibres as reinforcement and the alloy ...
  • Hot tensile and fatigue behaviour of zinc-aluminum alloys produced by gravity and squeeze casting 
    Kurnaz, Süleyman Can (ELSEVIER SCI LTD, 2005)
    The tensile and fatigue properties of zinc-aluminum alloys (ZA-8, ZA-12 and ZA-27) in squeeze and gravity cast forms have been investigated. Tensile tests were conducted at ambient and elevated temperatures up to 150 degrees ...
  • IFMBE Proceedings 
    N. Sarica; M. E. Aksoy; M. Usta; Bindal, Cuma; A. H. Uecisik; O Dossel; Wc Schlegel (SPRINGER, 2009)
    In order to reveal the effect of reuse solution and the hemodialysis environment on the stability of high flux polyamide hollow fiber membranes, mechanical tests, surface and X-ray diffraction studies were performed on ...
  • IFMBE Proceedings 
    Bindal, Cuma (HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY, 2007)
    Biomaterials being natural or man-made are crucially important for comprising whole or part of living structures. In order to prolong the service life of biomaterials is of vital importance. In this research, the tribological ...
  • Improved Electrochemical Performance of Lithium Oxygen Batteries with N-methyl-2-pyrrolidone Based Composite Polymer Electrolytes 
    Tokur, Mahmud; Algül, Hasan; Çetinkaya, Tuğrul; Uysal, Mehmet; Akbulut, Hatem (ELECTROCHEMICAL SOC INC, 2016)
    The stability and reversibility of the electrolytes is a significant limitation for cycle life performance of Lithium oxygen (Li-O-2) batteries. Therefore, the traditionally used ionic/liquid electrolytes need to be modified ...