Yazar "Özkan, Vildan" için 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 ... -
Experimental Investigation of MWCNTs Decorated with ZnO Nanoparticles as a Novel Additive in Conventional Water-based Drilling Mud
Özkan, Abdullah; Özkan, Vildan; Asker, Nilay Hayriye (IOP Publishing, 2021)The effect of multi-walled carbon nanotubes (MWCNTs) decorated with ZnONPs on the rheological and filtration properties of conventional water-based drilling muds (WBDM) was investigated. ZnONPs and MWCNTs were synthesized ... -
Experimental Investigation of the Effects on Rheological and Filtration Properties of Water-Based Drilling Mud of Fly Ash Addition with Different Particle Size and Concentration
Özkan, Abdullah; Turan, Sıtkı Ekrem; Özkan, Vildan (Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020)Performance of the drilling fluid is a great concern in drilling operations. Recently, many studies have been carried out on how to perform drilling operations more economically and effectively. Herein this paper effect ... -
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 ... -
Ham ve Genleştirilmiş Perlitin Su Bazlı Sondaj Çamuruna Etkisinin Karşılaştırılması
Özkan, Abdullah; Eker, Çağlar; Özkan, Vildan (Iğdır Üniversitesi, 2022)Sondaj uygulamalarında başarılı bir operasyon gerçekleştirmek için kullanılan sondaj akışkanının performansı oldukça önemlidir. Son zamanlarda özellikle pahalı teknolojilerin kullanıldığı yatay ve derin deniz sondajlarındaki ... -
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). ... -
Petrol türevi polimerlere nanopartikül katkılandırarak nanokompozit malzeme üretimi ve karakterizasyonu
Özkan, Vildan (İskenderun Teknik Üniversitesi / Mühendislik ve Fen Bilimleri Enstitüsü / Makine Mühendisliği Anabilim Dalı, 2019)Bu tez kapsamında poliakrilonitril (PAN), polivinilklorür (PVC) ve termoplastik poliüretan (TPU) polimerlerinin nanofiberleri elektrospin yöntemi kullanılarak üretilmiştir. Her bir polimer için; katkısız, %1 grafen katkılı ... -
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 ... -
Relationships Between Physico-Chemical Properties of The Soil and Selenium Speciations From Amik Plain, Turkey
Özkan, Abdullah; Uygur, Veli; Sungur, Şana; Özkan, Vildan (Parlar Scientific Publications, 2022)The occurrence of selenium (Se) in natural soils is a double-edged sword due to the slight differences between essential, beneficial, and toxic levels of selenium. Therefore, it is crucial to have knowledge about selenium's ... -
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 ... -
TiO2 Nanopartikülü İle Fonksiyonelleştirilmiş Çok Duvarlı Karbon Nanotüpün Su Bazlı Sondaj Çamuruna Etkisinin Belirlenmesi: Deneysel Çalışma
Asker, Nilay Hayriye; Özkan, Vildan; Özkan, Abdullah (Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020)Bu çalışmada, su bazlı sondaj çamuruna (Na-Bentonit bazlı) fonksiyonelleştirilmiş karbon nanotüpün etkisinin tespiti amaçlanmıştır. Bu kapsamda su bazlı sondaj çamurları hazırlanmış ve kimyasal buhar biriktirme (CVD) yöntemi ...
