Yazar "Karaağaç, Öznur" için listeleme
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2D magnetic texture analysis of co-cu films
Bayırlı, Mehmet; Karaağaç, Öznur; Köçkar, Hakan; Alper, Mürsel (Walter De Gruyter GMBH, 2017)The magnetic textures for the produced magnetic materials are important concepts in accordance with technical applications. Therefore, the aim of this article is to determine 2D magnetic textures of electrodeposited Co-Cu ... -
Characterisations of cocu films electrodeposited at different cathode potentials
Karaağaç, Öznur; Alper, Mürsel; Köçkar, Hakan (Elsevier Science Bv, 2010)Structural and magnetic properties of CoCu films electrodeposited on polycrystalline Cu substrates were investigated as a function of cathode potential used for their deposition. The compositional analysis, performed by ... -
Characterizations of iron particles reduced from iron oxide nanoparticles under hydrogen atmosphere
Karaağaç, Öznur (Springer, 2013)Submicron iron particles were obtained by the reduction of co-precipitated superparamagnetic iron oxide nanoparticles under hydrogen atmosphere. The reduction was carried out at the temperatures ranging from 200 to 1000 ... -
CoCu alaşım filmlerin elektrodepozisyonu, yapısal ve manyetik özellikleri üzerine depozisyon paremetrelerin etkisinin incelenmesi
Karaağaç, Öznur (Balıkesir Üniversitesi Fen Bilimleri Enstitüsü, 2007)Bu çalışmada, elektrodepozisyon tekniğiyle polikristal bakır (Cu) alttabaka üzerine büyütülen Co ve CoCu filmlerin kimyasal bileşimi, yapısal ve manyetik özellikleri araştırılmıştır. Filmlerin özellikleri depozisyon ... -
Composition dependence of structural and magnetic properties of electrodeposited Co-Cu films
Karaağaç, Öznur; Köçkar, Hakan; Alper, Mürsel (IEEE-Inst Electrical Electronics Engineers Inc, 2010)The structural and magnetic properties of Co-Cu films were studied in terms of Co content in the films. The surface morphology of the films showed that the film with the lowest Co content (3 wt. %) had dendritic structures, ... -
Contribution of electrolyte pH and deposition potentials to the magnetic anisotropy of electrodeposited nickel films
Köçkar, Hakan; Alper, Mürsel; Karaağaç, Öznur; Nakiboğlu, Nuri; Baykul, M. Celalettin (Elsevier Science Bv, 2010)The influence of electrolyte pH and cathode potential on the magnetic properties of single layer Nickel films electrodeposited on polycrystalline titanium substrates was studied. The films were deposited at the electrolyte ... -
Çinko ferrit nanoparçacıkların özelliklerine sentez sıcaklığı ve süresinin etkisinin incelenmesi
Hasırcı, Caner (Balıkesir Üniversitesi Fen Bilimleri Enstitüsü, 2019)Bu çalışmanın amacı, hidrotermal metotla çinko ferrit nanoparçacıkların sentezlenmesi ve sentezlenen nanoparçacıkların yapısal ve manyetik özelliklerine sentez sıcaklığı ve süresinin etkisinin incelenmesidir. Çinko ferrit ... -
Development and characterization of superparamagnetic nanomaterial to determine its potential application in removing the bitterness of table olives
Savaş, Elif; Karaağaç, Öznur; Köçkar, Hakan; Kaya, Mihrap Yaşar; Türkoğlu, Sümeyye Aydoğan; Köçkar, Feray (MYU, 2020)The aim of this study is to develop stable superparamagnetic iron oxide nanoparticles (SPIONs) for the immobilization of beta-glucosidase. The goal is to figure out the possibility of applying immobilization techniques in ... -
Development of hydrogen reduction method for La-Fe-Si materials from oxalate precursors
Ateş, Semih; Karaağaç, Öznur; Köçkar, Hakan; Gürmen, Sebahattin (Taylor & Francis Ltd, 2023)Hydrogen reduction was used to synthesise LaFeSi-based materials from lanthanum, cerium, iron oxalates, and silicon dioxide. The process involved the pre-reduction of the precursor powder mixture at 650 & DEG;C under N-2 ... -
Easy controlled properties of quaternary fenicrcd thin films deposited from a single dc magnetron sputtering under the influence of deposition rate
Köçkar, Hakan; Şentürk, Özgür; Karpuz, Ali; Karaağaç, Öznur; Kaplan, Nadir; Kuru, Hilal (Springer, 2019)The quaternary FeNiCrCd thin films were produced from a single FeNiCrCr source on a commercial flexible polymer substrate using one dc magnetron sputtering technique. For that, a series of the films with a thickness of 50 ... -
The effect of Fe content in electrodeposited CoFe/Cu multilayers on structural, magnetic and magnetoresistance characterizations
Tekgül, Atakan; Alper, Mürsel; Köçkar, Hakan; Şafak, Mürside; Karaağaç, Öznur (Amer Scientific Publishers, 2010)A series of CoFe/Cu multilayers were electrodeposited on Ti substrates from the electrolytes containing their metal ion under potentiostatic control, but the Fe concentration in the electrolytes was changed from 0.0125 M ... -
Effect of synthesis parameters on the properties of superparamagnetic iron oxide nanoparticles
Karaağaç, Öznur; Köçkar, Hakan (Springer, 2012)Iron oxide nanoparticles were coprecipitated in air medium using different sodium hydroxide (NaOH) concentrations, and their structural and magnetic properties were studied. It was observed that the precipitation of ... -
Effects of biocompatible surfactants on structural and corresponding magnetic properties of iron oxide nanoparticles coated by hydrothermal process
Köçkar, Hakan; Karaağaç, Öznur; Özel, Fatmahan (Elsevier Science BV, 2019)Effect of the biocompatible surfactants; tartaric acid, ascorbic acid and a mixture of them on the properties of the superparamagnetic iron oxide nanoparticles (SPIONs) were investigated, separately. The SPIONs were ... -
The effects of temperature and reaction time on the formation of manganese ferrite nanoparticles synthesized by hydrothermal method
Karaağaç, Öznur; Köçkar, Hakan (Springer, 2020)In order to optimize the hydrothermally synthesized manganese ferrite nanoparticles, the nanoparticles were synthesized under different reaction conditions. The effects of reaction temperature and time were investigated ... -
Electrodeposited cobalt films: The effect of deposition potentials on the film properties
Karaağaç, Öznur; Köçkar, Hakan; Alper, Mürsel (Natl Inst Optoelectronics, 2013)A series of cobalt films were deposited on copper substrates at different deposition potentials between -1.0 V and -1.6 V and their properties were investigated. The proper deposition potentials were obtained from the ... -
Electrodeposited cofecu films at high and low ph levels: structural and magnetic properties
Köçkar, Hakan; Özergin, Ercüment; Karaağaç, Öznur; Alper, Mürsel; Kuru, Hilal; Haciismailoğlu, Mürside (Springer, 2015)CoFeCu films were electrodeposited at high and low pH, and their structural, magnetic and magnetoresistance properties were studied. Current-time transients were recorded to observe the proper deposition of the films. ... -
Electrodeposited Ni-Co films from electrolytes with different Co contents
Karpuz, Ali; Köçkar, Hakan; Alper, Mürsel; Karaağaç, Öznur; Hacıismailoğlu, Mürşide (Elsevier Science Bv, 2012)The properties of electrodeposited Ni-Co films produced from electrolyte consisted of nickel sulfamate, cobalt sulfate and boric acid were investigated as a function of Co content in the films. The compositional analysis ... -
Electrodeposited NiCoFe films from electrolytes with different Fe ion concentrations
Köçkar, Hakan; Demirbaş, Özen; Kuru, Hilal; Alper, Mürsel; Karaağaç, Öznur; Hacıismailoğlu, Murside; Özergin, Ercüment (Elsevier Science Bv, 2014)Ternary NiCoFe films, relating their magnetic and magnetoresistance properties with film composition, and the corresponding crystal structure were investigated in terms of different Fe ion concentrations in the electrolyte. ... -
Electrodeposition and characterization of co/cu multilayers
Hacıismailoğlu, Mürşide; Alper, Mürsel; Köçkar,hakan; Karaağaç, Öznur (Polish Acad Sciences Inst Physics, 2016)Co/Cu multilayers having different bilayer number (total thickness) were electrodeposited on polycrystalline Cu substrates with a strong [100] texture from an electrolyte including Co and Cu ions under potentiostatic ... -
Growth of binary ni-fe films: Characterisations at low and high potential levels
Kuru, Hilal; Köçkar, Hakan; Alper, Mürsel; Karaağaç, Öznur (Elsevier Science Bv, 2015)Binary Ni-Fe films relating their magnetoresistance and magnetic properties with crystal structure and surface morphology, and the Corresponding film composition were investigated at low and high deposition potentials. ...