Yazar "MÜ, Mühendislik Fakültesi, Metalurji Ve Malzeme Mühendisliği Bölümü" için Metalurji ve Malzeme Mühendisliği Bölümü Koleksiyonu listeleme
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Chemical and structural optimization of ZnCl2 activated carbons via high temperature CO2 treatment for EDLC applications
Köse, Kadir Özgün; Pişkin, Berke; Aydınol, Mehmet Kadri (Pergamon-Elsevier Science Ltd, 2018)Development of biomass based activated carbon materials for electrical double layer capacitor (EDLC) usage has gained attention as a result of requesting efficient and low cost energy storage device production. In this ... -
Corrosion of magnesium alloy AZ31 screws is dependent on the implantation site
Willbold, E.; Kaya, Ali Arslan; Kaya, R. A.; Beckmann, F.; Witte, F. (Elsevier Science Bv, 2011)The corrosion of biodegradable materials is a crucial issue in implant development. Among other materials, magnesium and magnesium based alloys are one of the most promising candidates. Since the corrosion of biodegradable ... -
Decomposition in Ni-Co-Mn-In functional Hensler alloys and its effect on shell-ferromagnetic and magnetocaloric effects
Şaşmaz, Merivan; Dreist, F.; Iglesias, I.; Çakır, Aslı; Farle, Michael; Acet, Mehmet (Amer Physical Soc, 2020)Ni-Co-Mn-In Heusler-based compounds are interesting for their magnetocaloric properties and have been widely investigated for this purpose. For Co compositions more than 5 at% in (Ni100-xCox)(50)Mn25+yIn25-y the material ... -
Deformation behaviour of a new Magnesium ternary alloy
Guglielmi, P.; Kaya, Ali Arslan; Sorgente, D.; Palumbo, G. (Amer Inst Physics, 2018)Magnesium based alloys are yet to fill a greater niche especially in the automotive and aeronautical industry. In fact, such alloys have a big weight saving potential, together with good damping characteristics. However, ... -
Development of LLDPE based active nanocomposite films with nanoclays impregnated with volatile compounds
Tornuk, Fatih; Sağdıç, Osman; Hançer, Mehmet; Yetim, Hasan (Elsevier Science Bv, 2018)In this study, a novel procedure was performed for grafting of nanoclays (montmorillonite (MMT) and halloysite (HNT)) with essential oil constituents (thymol (THY), eugenol (EUG) and carvacrol (CRV)) using Tween 80 as ... -
Development of rolling technology for twin roll casted 1500MM wide magnesium AZ31 alloy
Duygulu, Özgür; Üçüncüoğlu, Selda; Oktay, Gizem; Temur, Deniz Sultan; Yücel, Onuralp; Kaya, Ali Arslan (Minerals, Metals & Materials Soc, 2009)Magnesium alloy AZ31 sheets of 4.5-6.5mm thick and 1500mm width were produced by twin roll strip casting first time in Turkey. Afterwards, sheets were hot and cold rolled down to less than 1mm both by laboratory and ... -
Effect of Al doping on the magnetic and elastic properties of Fe65Ni35 Invar alloys
Çakır, Aslı (Scientific Technical Research Council Turkey-Tubitak, 2019)Invar alloys have great importance due to their low thermal expansion coefficient. The effect of Al doping on Fe65Ni35 Invar alloy was investigated by temperature-dependent magnetization and elastic modulus measurements. ... -
Evolution of Microstructure and Texture in AZ31 Alloy Subjected to Gas Forming
Kaya, Ali Arslan; Eren, D.; Turan, D.; Sorgente, D.; Palumbo, G. (Springer, 2017)In this study, AZ31 sheets were subjected to gas forming using a stepped geometry die and employing two different temperatures (400A degrees C and 450A degrees C) and exposure times (60 s and 120 s). Microstructural ... -
Fabrication and characterization of SmCo5/Nb ferromagnetic/superconducting hybrid thin films grown by RF magnetron sputtering technique
Ongun, E.; Kuru, M.; Serhatlioglu, M.; Hancer, Mehmet; Özmetin, A. E. (Pergamon-Elsevier Science Ltd, 2017)Ferromagnet/Superconductor (F/S) bilayer hybrids show exclusive states due to the mutual interaction between the superconductor and the underlying ferromagnetic substructures in micron scale. In this work, we aimed to ... -
Flame retardant effect of aluminum hypophosphite in heteroatom-containing polymers
Savas, Lemiye Atabek; Hacioglu, Firat; Hançer, Mehmet; Dogan, Mehmet (Springer, 2020)In the present study, the effect of the aluminum hypophosphite (AlHP) concentration on the flame retardant properties of the four different polymers [polyamide 6 (PA6), poly(lactic acid) PLA, thermoplastic polyurethane ... -
The flame-retardant effect of calcium hypophosphite in various thermoplastic polymers
Atabek, Lemiye Savaş; Tayfun, Ümit; Hancer, Mehmet; Doğan, Mehmet (Wiley, 2019)The flame-retardant behavior of calcium hypophosphite (CaHP) was investigated in different thermoplastic polymers including polyamide 6 (PA), poly (lactic acid) (PLA), thermoplastic polyurethane (TPU), and poly methyl ... -
Forming Behaviour at Elevated Temperature of a Laser Heat-Treated AZ31 Magnesium Alloy Sheet
Sorgente, Donato; Palumbo, Gianfranco; Fortunato, Alessandro; Ascari, Alessandro; Kaya, Ali Arslan (Trans Tech Publications Ltd, 2018)The tailoring of mechanical and technological properties of the initial material in sheet metal forming has been widely investigated and successfully applied. The benefits of such an approach can be found in the improvement ... -
Fundamentals of magnesium alloy metallurgy: A volume in Woodhead Publishing Series in Metals and Surface Engineering
Pekgüleryüz, Mihriban O.; Kainer, K.U.; Kaya, Ali Arslan (Elsevier Inc., 2013)Magnesium and magnesium alloys offer a wealth of valuable properties, making them of great interest for use across a wide range of fields. This has led to extensive research focused on understanding the properties of ... -
The influence of nitridation time on the structural properties of GaN grown on Si (111) substrate
Arslan, Engin; Öztürk, Mustafa K; Duygulu, Özgür; Kaya, Ali Arslan; Özçelik, Süleyman; Özbay, Ekmel (Springer Heidelberg, 2009)In the present paper, the effect of in-situ substrate nitridation time on crystalline quality of GaN films grown on Si (111) substrates by metal organic chemical vapor deposition (MOCVD) were investigated. A thin buffer ... -
Investigation of temperature dependent magnetization and elastic modulus in Si-doped Fe65Ni35 invar alloys
Özöğüt, Uğur Can; Çakır, Aslı (Elsevier Science Sa, 2017)Fe-65 Ni-35 invar is a prominent nickel steel alloy exhibiting low coefficient of thermal expansion around room temperature. The present work deals with the temperature dependence of the elastic modulus and magnetization ... -
Magnetic and structural instabilities in mictomagnetic Cu50Mn45Al5 against the formation of ferromagnetic precipitates
Çakır, Aslı (Pergamon-Elsevier Science Ltd, 2020)A new property of Heusler alloys known as shell-ferromagnetism is observed predominantly in NiMn-based Heusler alloys with X as Ga, Al, In and Sn. An antiferromagnetic-matrix/shell-ferromagnetic precipitate dual-phase ... -
Morphology effect on electrochemical properties of doped (W and Mo) 622NMC, 111NMC, and 226NMC cathode materials
Pişkin, Berke; Uygur, Cansu Savas; Aydniol, M. Kadri (Pergamon-Elsevier Science Ltd, 2020)An investigation was carried out on layered Li(NixMnyCo1-x-y)O-2 (NMC) cathode active materials for Li-ion batteries to determine the effect of morphology on their electrochemical performances. The NMC active materials ... -
Nb-Pd-Ti BCC thin films for hydrogen separation
Pişkin, Fatih; Öztürk, Tayfur (Elsevier Science Sa, 2019)An investigation was carried out into Nb-Pd-Ti ternary system to determine possible body-centered cubic (b.c.c.) membranes that can be used for hydrogen separation. A library of thin films was produced covering the greater ... -
Non-volatile high-temperature shell-magnetic pinning of Ni-Mn-Sn Heusler precipitates obtained by decomposition under magnetic field
Çakır, Aslı; Acet, M. (Elsevier Science Bv, 2018)The thermodynamic instability of the off-stoichiometric Ni49.8Mn45.1Sn5.1 martensitic Heusler causes it to decompose into ferromagnetic Ni50Mn25Sn25 precipitates and an antiferromagnetic NiMn matrix. If the decomposition ... -
Optical, electrical and microstructural properties of SiC thin films deposited by reactive dc magnetron sputtering
Tavşanoğlu, Tolga; Zayim, E O; Ağırseven, O; Yıldırım, S; Yücel, O (Elsevier Science Sa, 2019)In this study, amorphous silicon carbide (SiC) thin films of variable compositions were deposited on Si (100) and glass substrates by reactive direct current magnetron sputtering of high purity silicon target, using CH4 ...