İSTE Yazarı "Özkan, Vildan" Araştırma Çıktıları | Web of Science İçin Listeleme
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Effect of Clinoptilolite-Rich Zeolite on the Properties of Water Based Drilling Fluid
Özkan, Abdullah; Özkan, Vildan (Parlar Scientific Publications (P S P), 2019)Wellbore instability is an important problem in drilling operation, especially in high temperature and pressure shale formations. This problem has been addressed using zeolite or other particles as drilling fluid additives. ... -
Electromagnetic Scattering Properties of MWCNTs/Graphene Doped Epoxy Layered with PVC Nanofiber/E-Glass Composites
Özkan, Vildan; Yapıcı, Ahmet; Karaaslan, Muharrem; Akgöl, Oğuzhan (Springer, 2020)In this study, composites composed of glass fiber reinforced-epoxy laminates interleaved with electrospun polyvinylchloride (PVC) nano-fibres were designed for radar absorption investigations. The laminated composites which ... -
Fabrication of Pt/Pd Nanoparticles/Polyoxometalate/Ionic Liquid Nanohybrid for Electrocatalytic Oxidation of Methanol
Medetalibeyoğlu, Hilal; Manap, Sevda; Yokuş, Özlem Aktaş; Beytur, Murat; Kardaş, Faruk; Akyıldırım, Onur; Özkan, Vildan; Yüksek, Haydar; Yola, Mehmet Lütfi; Atar, Necip (Electrochemical Society Inc., 2018)Fuel cells have important applications in recent decades due to high-energy demands, fossil fuel depletions, and environmental pollution throughout world. Pt/Pd nanoparticles/polyoxometalate/ionic liquid (ILs) nanohybrid ... -
An Innovative Experimental Study on Improving the Rheological Properties of Na-Bentonite Water Based Drilling Muds using Graphene, Graphene Oxide and Graphene Oxide Functionalized with Gold Nanoparticles
Özkan, Abdullah; Tıknas, Semih; Özkan, Vildan (Institute of Physics, 2022)In this study; it is aimed to improve the rheological properties of Na-Bentonite water based drilling muds (WBDM) by graphene, graphene oxide (GO) and graphene oxide functionalized with gold nanoparticles (AuNPs/GO) at ... -
Investigation of electromagnetic properties of glass-fiber reinforced epoxy composites containing pan nanofibers with mwcnt/graphene additive
Özkan, Vildan; Yapıcı, Ahmet; Karaaslan, Muharrem; Akgöl, Oğuzhan (Parlar Scientific Publications (P S P), 2019)In this work; the differences between of electromagnetic properties of glass fiber reinforced (GFR)-epoxy laminate composites with various nanoparticle doped polyacrylonitrile (PAN) fibers were investigated. The laminated ... -
Low Velocity Impact and Tensile Performance of GFRPs Interleaved with Electrospun Nylon 6,6 Nanofiber Mats
Yıldız, Murat; Yapıcı, Ahmet; Özkan, Vildan; Şahin, Ömer Sinan (Strojarski Facultet, 2021)Nanofibers can be interleaved into polymers and improvements in mechanical properties such as resistance to impact, delamination and debonding as well as enhanced ductility can be obtained. In this work, GFRP laminated ... -
The mechanical effect of functionalization in laminated composite material
Saraçoğlu, Göksel; Ceritbinmez, Ferhat; Özkan, Vildan; Yapıcı, Ahmet (Emerald Publishing, 2023)PurposeThis study aims to systematically compare the effect of increasing fiber-matrix interface adhesion and matrix toughness in layered composite materials. Design/methodology/approachSilane ((3-glycidyloxypropyl) ... -
MWCNTs doped GFRPs drilling: crosscheck among holes obtained by alternative manufacturing methods
Ceritbinmez, Ferhat; Özkan, Vildan; Saraçoğlu, Göksel; Yapıcı, Ahmet (Springer, 2021)In this study, the holes of glass fiber reinforced polymer (GFRP) and multi-walled carbon nanotubes (MWCNTs) doped GFRP composite materials were drilled using abrasive water jet (AWJ), CO2 laser cutting, orbital drilling, ... -
Novel Research on CuONPs/MWCNTs Effect on the Properties of Na-Bentonite Water Based Drilling Muds with Experimental Study
Özkan, Abdullah; Özkan, Vildan (IOP Publishing, 2020)This novel research, aimed to improve the properties of Na-bentonite water based drilling mud (WBDM) and reduce its cost by adding multi-walled carbon nanotubes functionalized with copper oxide nanoparticles (CuONPs/MWCNTs). ... -
Production of Multi-Walled Carbon Nanotube and Graphene Doped Thermoplastic Polyurethane Fiber and Investigation of Mechanical Properties
Özkan, Vildan; Yapıcı, Ahmet; Özkan, Abdullah (IOP Publishing, 2020)Nowadays nanofibers are used in many areas. Nanofibers produced by electrospinning are required to be porous, large surface area, lightweight and cost effective. In addition to being lightweight, nanofibers must also have ... -
Synthesis and Characterization of SiO2NPs/MWCNTs Nanocomposite and Effect on the Properties of Na-Bentonite Water Based Drilling Fluids: Experimental Investigation
Özkan, Vildan; Özkan, Abdullah; Asker, Nilay Hayriye (IOP Publishing, 2020)Drilling fluid is an essential element of the drilling operations and has many functions. Some of these are wellbore cleaning, checking high formation pressures and corrosion protection, etc. This study aimed to determine ...