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ALPER, MÜRSEL

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ALPER

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MÜRSEL

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2019 - 201912020 - 20211
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    Publication
    Optimization of fe content in electrodeposited fecocu/cu magnetic multilayer
    (Elsevier, 2019-03-01) Koçkar, Hakan; Tekgül, Atakan; Alper, Mürsel; ALPER, MÜRSEL; Bursa Uludağ Üniversitesi/Mühendislik Fakültesi; 0000-0001-6737-3838; 0000-0002-4862-0490; P-2124-2016; AAG-8795-2021
    The structural, magnetic and magnetoresistance properties of FeCoCu/Cu multilayers prepared by electrochemical deposition from a single bath containing 0.025, 0.05 and 0.1 M Fe under potentiostatic control are investigated. The deposition potentials were selected - 1.5 V for magnetic layers and - 0.4 V for non-magnetic layers concerning saturated calomel electrode. The multilayers exhibited face-centered-cubic structure in the X-ray diffraction. In the multilayer produced from the electrolyte containing 0.05 M Fe, the high saturation magnetization value (572.3 kA/m) was observed and it value drastically decreased 140.6 kA/m in the electrolyte containing 0.1 M Fe. The magnetoresistance measurements were carried out in magnetic fields in the range of +/- 955 kA/m. The high giant magnetoresistance value (18.7%) were obtained in the multilayer with 0.05 M Fe. In the magnetic sublayers of the multilayers, the more than Cu atoms deposited and due to this, the magnetoresistance curves exhibited the 2.5, 4.7, 2.4% anisotropic magnetoresistance contributions between longitudinal and transverse magnetoresistance.
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    Development of electrodeposited multilayer coatings: A review of fabrication, microstructure, properties and applications
    (Elsevier, 2021-08-12) Aliofkhazraei, M.; Walsh, Frank C.; Zangari, Giovanni; Koçkar, Hakan; Alper, Mürsel; Rizal, Conrad; Magagnin, Luca; Protsenko, Vyacheslav; Arunachalam, Ramanathan; Rezvanian, Amirreza; Moein, Arian; Assareh, Sahar; Allahyarzadeh, Mohammad Hossein; ALPER, MÜRSEL; Bursa Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Bölümü.; AAG-8795-2021
    The demand for robust engineering materials demonstrating good tribological performance under arduous service conditions has forged the development of novel coating materials and techniques. In the field of surface engineering, multilayer structures have attracted great interest. Electrodeposition offers a versatile and controlled route to engineering coatings in tribology. Electrodeposited coatings can provide tailored electronic, magnetic, mechanical, wear-resistant and corrosion-resistant characteristics as well as an improved load-bearing capability. The performance of multilayered electrodeposits can significantly exceed that of single layers. This paper critically reviews the fabrication, microstructure, engineering properties and potential applications of electrodeposited multilayer coatings. Such coatings can provide powerful, complementary additions to the toolkit for engineering electrodeposition, enabling future advances. Critical aspects requiring further R & D endeavors are identified.