Browsing Metalurji ve Malzeme Mühendisliği Bölümü Makale Koleksiyonu by Author "Mühendislik Fakültesi"
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A comparative study of hardness/scratch/wear properties of TiCN and TiAlN coatings on DIN 1.2842 steel by CA-PVD method
Simsir, Mehmet; Palaci, Yuksel; Özer, Ali (Springer, 2021)In the present study, TiCN and TiAlN were deposited on DIN 1.2842 (AISI O2) steel, and their mechanical properties was compared by investigating coating thickness, adhesion strength, microhardness, and elastic modulus. To ... -
A comparative study of hardness/scratch/wear properties of TiCN and TiAlN coatings on DIN 1.2842 steel by CA-PVD method
Simsir, Mehmet; Palaci, Yuksel; Özer, Ali (2021)In the present study, TiCN and TiAlN were deposited on DIN 1.2842 (AISI O2) steel, and their mechanical properties was compared by investigating coating thickness, adhesion strength, microhardness, and elastic modulus. To ... -
A Novel and Eco‑friendly Approach for the Simultaneous Recovery of Copper and Diamond from Waste Cutting Segments via Electrodissolution/Deposition
Kul, Mehmet; Erden, Fuat; Oskay, Kürşad O; Karasungur, Onur; Şimşir, Mehmet; Kumruoğlu, L. Cenk; Karakaya, İshak (2021)A new approach is brought to diamond recovery from waste cutting segments. Unlike the commonly used hydrometallurgical processes, this approach offers the simultaneous recovery of copper with diamond. Besides, instead of ... -
An investigation of corrosive effects on zirconia with different crystal structures
Soygun, Koray; Özer, Ali; Ulucan, Mehmet Çağatay; Bolayır, Giray (Wiley, 2021)This study aimed to compare the time-related corrosive resistance in different corrosive solution environments after sintering of zirconia with different crystal structures. The zirconia samples were produced in pellet ... -
Anti-adhesive effect of naturally obtained dicalcium phosphate dihydrate nanoparticles in the rat uterine wound model
Kurt, Begüm; Öksüz, Kerim Emre; İnan, Zeynep Deniz Şahin; Hepokur, Ceylan (Mexican Academy of Surgery, 15-04-2023)Objective: In this study, we aimed to compare the anti-adhesive effects of contractubex and dicalcium phosphate dihydrate (DCPD) particles in rats treated with the uterine horn adhesion model. Materials and methods: Newly ... -
Cost-Effective and Fast Fabrication of Copper–Cobalt Electrochemical Glucose Sensor
ZEYNALOVA, Aydan; OSKAY, Kürşad Oğuz (01.10.2023)This study aimed to develop porous Cu and Cu-Co coatings using a rapid one-step electrodeposition technique. The coatings were characterized using scanning electron microscopy and x-ray diffraction. Pencil graphite electrodes ... -
Direct co-deposition of binder-free Cu-biochar-based nonenzymatic disposable sensing element for electrochemical glucose detection
LARASATI,Lucyana D; ATEŞ, Ayten; OSKAY, Kürşad Oğuz (11.01.2023)This work is the first attempt to incorporate biochar on a pencil graphite electrode via one-step electrodeposition as a rational route for refining a copper-based biosensor for a high-performance nonenzymatic electrochemical ... -
Effect of Chemical Composition of Boriding Agent on the Optimization of Surface Hardness and Layer Thickness on AISI 8620 Steel by Solid and Liquid Boriding Processes
KUL, Mehmet; Yılmaz, Yasin; OSKAY, Kürşad Oğuz; Kumruoğlu, Levent Cenk (08.10.2022)Surfaces of cam shafts made of AISI 8620 steels were hardened by boriding processes in both solid and liquid mediums. Various chemical agents were used to achieve boride layers on the surfaces of the cam shafts in these ... -
Effects of pH and Current Density on Microstructure and Hardness of the Cobalt-Tungsten Coating
Oskay, Kürşat Oğuz (Dergipark, 14.04.2022)Effects of pH and Current Density on Microstructure and Hardness of the Cobalt-Tungsten Coating -
Efficient Zinc Removal from Blast Furnace Sludge Using Choline Chloride–Malonic Acid: Towards Sustainable Recycling of Iron Extraction Waste
OSKAY, Kürşad Oğuz; KUL, Mehmet; DOĞAN, Mehmet; ASLAN,Nevzat (17.07.2023)Chemical components of blast furnace sludge (BFS) of iron blast furnaces become a recyclable raw material in the furnace when a few contents including zinc (Zn) are selectively removed. Out of four deep eutectic solvents ... -
Enzyme-free nickel electrochemical glucose sensor fabricated on pencil graphite electrode by electrodeposition
OSKAY, Kürşad Oğuz; Özkan, Bülent (Springer, 25.02.2023)In this study, the optimal conditions for the electrodeposition of nickel foam-like morphology over a pencil graphite electrode for glucose sensor application are determined. The effects of NiSO4 and NH4Cl concentrations, ... -
Evaluation of iron containing biochar composites prepared by different preparation methods for H2O2 sensing
ATEŞ, Ayten; OSKAY, Kürşad Oğuz (11.01.2023)Background The procedures employed to prepare the ferrous biochar samples, the iron salts utilized, and their quantities have an effect on the surface characteristics of the material and the types of iron that will develop ... -
Evaluation of the microhardness of different resin-based dental restorative materials treated with gastric acid: Scanning electron microscopy–energy dispersive X-ray spectroscopy analysis
Ünal, Murat; Candan, Merve; İpek, İrem; Küçükoflaz, Merve; Özer, Ali (Wiley, 2021)The aim of this study is to evaluate the microhardness, relative surface roughness, and elemental changes of resin-based dental restorative materials (RDRMs) after gastric acid treatment. Five different RDRMs (Group 1 ... -
Fabrication and Characterization of High Performance PVDF-based flexible piezoelectric nanogenerators using PMN-xPT (x: 30, 32.5, and 35) particles
Paralı, Levent; Koç, Muhterem; Akça, Erdem (Elsevier, 01/06/2023)Flexible piezoelectric nanogenerators based on polyvinylidene difluoride (PVDF) and lead magnesium niobate-lead titanate Pb(Mg1/3Nb2/3)O3–PbTiO3(PMN-xPT compositions for x between 30 and 35) particles with various filler ... -
Gallium oxide films deposition by RF magnetron sputtering; a detailed analysis on the effects of deposition pressure and sputtering power and annealing
Mobtakeri, Soheil; Akaltun, Yunus; Özer, Ali; Kılıç, Merhan; ŞenadımTüzemen, Ebru; Gür, Emre (Elsevier, 2021)In this study, gallium oxide (Ga2O3) thin films were deposited on sapphire and n-Si substrates using Ga2O3 target by radio frequency magnetron sputtering (RFMS) at substrate temperature of 300 °C at variable RF power and ... -
Investigation of nitrogen doped ZnO thin films: Effects on their structural and optical properties
Hopoglu, H; Aydınoglu, H.S.; Ozer, A.; Senadım Tüzemen, E. (Elsevier, (2021))Un-doped and nitrogen-doped ZnO thin films were grown by using radio frequency (RF) magnetron sputtering method changing the nitrogen flow rate between 0% ����� 12.5% and the thickness dependence of films was determined. ... -
Investigation of physicochemical and biological properties of boron-doped biochar
Ateş, Ayten; Aydemir, Burçak; Öksüz, Kerim Emre (Springer, Published:)Boron doping of biochar leads to the formation of activated oxygen species and pores and defects in the carbon structure Therefore, boron-containing biochar was prepared by treating boric acid (H3BO3) solutions in diferent ... -
Novel Bioactive Glass/Graphene Oxide-Coated Surgical Sutures for Soft Tissue Regeneration
Öksüz, Kerim Emre; Kurt, Begüm; İnan, Zeynep Deniz Şahin; Hepokur, Ceylan (ACS, June 8, 20)The combination of a commercially available PGLA (poly[glycolide-co-l-lactide]), 90:10% suture material with bioactive bioglass nanopowders (BGNs) and graphene oxide (GO)-doped BGNs offers new opportunities for the clinical ... -
Novel natural spider silk embedded electrospun nanofiber mats for wound healing
Öksüz, Kerim Emre; Kurt Özkaya, Neşe; Şahin İnan, Zeynep Deniz (Elsevier, 2021)In recent years, electrospun nanofiber mats based on biopolymers have been extensively investigated for tissue and biomedical engineering, mainly because of remarkable morphological similarity with the natural ... -
Optimisation of recycled moulding sand composition using the mixture design method
KUL, Mehmet; AKGÜL, Bekir; OSKAY, Kürşad Oğuz; ALSAN, Aytuğ Eren; KARACA, Bahadır (Taylor and Francis, 25.05.2021)In the cast iron industry, mould sand quality and the most efficient recovery of used sand into the system are critical. For this purpose, the optimum values of the factors (humidity, active bentonite and coal dust) affecting ...