Materials Engineering / Malzeme Mühendisliği: Recent submissions

Now showing items 1-20 of 27

Investigation of Performance Properties of Denim Fabrics Containing Cotton/Sustans (R) Blend Rotor Yarn

Ozkan, Muhittin; Baykal, Pinar Duru; Ozkan, Ilkan (TEKSTIL VE KONFEKSIYON / Ege Üniversitesi = Ege University, 2022-09)

It is common to use open-end rotor yarn in the production of denim fabric, which is preferred by people of all ages and social status due to its durability and comfort. Recently, the demand for stretch denim fabrics that ...
The effect of powder preparation method on the artificial photosynthesis activities of neodymium doped titania powders

Yurtsever, Husnu Arda; Ciftcioglu, Muhsin (INTERNATIONAL JOURNAL OF HYDROGEN ENERGY / ELSEVIER SCIENCE LTD, 2018-11)

The effects of nanostructure on the artificial photosynthesis activities of undoped and Nd doped titania (TiO2) powders prepared by three different chemical co-precipitation methods were investigated. Substitutional/interstitial ...
Optical properties of GaAs1-xBix/GaAs quantum well structures grown by molecular beam epitaxy on (100) and (311)B GaAs substrates

Gunes, Mustafa; Ukelge, Mulayim Ongun; Donmez, Omer; Erol, Ayse; Gumus, Cebrail; Alghamdi, Haifaa; Galeti, Helder Vinicius Avanço; Henini, Mohamed; Schmidbauer, Martin; Hilska, Joonas; Puustinen, Janne; Guina, Mircea (SEMICONDUCTOR SCIENCE AND TECHNOLOGY / IOP PUBLISHING LTD, 2018-12)

In this work, the electronic bandstructure of GaAs1-xBix/GaAs single quantum well (QW) samples grown by molecular beam epitaxy is investigated by photomodulated reflectance (PR) measurements as a function of Bi content ...
One-pot synthesis of organic-inorganic hybrid polyhedral oligomeric silsesquioxane microparticles in a double-zone temperature controlled microfluidic reactor

Kibar, Gunes; Caliskan, Umutcan; Erdem, E. Yegan; Cetin, Barbaros (JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY / WILEY, 2019-07)

Polyhedral oligomeric silsesquioxane (POSS) particles are one of the smallest organosilica nano-cage structures with high multifunctionality that show both organic and inorganic properties. Until now poly(POSS) structures ...
Self-Defined Transition State in Hybrid C-70-Au Clusters Created by the Scanning Tunneling Microscope Tip

Kaya, Dogan; Wang, Yitao; Akyol, Mustafa; Karadag, Faruk; Ekicibil, Ahmet; Guo, Quanmin (JOURNAL OF PHYSICAL CHEMISTRY C / AMER CHEMICAL SOCIETY, 2019-11)

Manipulation of C-70-Au hybrid nanoclusters was investigated using a scanning tunneling microscope (STM) tip. We demonstrate that removing a selected C-70 molecule from the cluster by STM-tip resulted in an intermediate ...
Mechanical, thermal and rheological characterization of polystyrene/organoclay nanocomposites containing aliphatic elastomer modifiers

Dike, Ali Sinan; Yilmazer, Ulku (MATERIALS RESEARCH EXPRESS / IOP PUBLISHING LTD, 2020-01)

In this study, organoclay containing polystyrene (PS) based nanocomposites were prepared by extrusion in the presence of aliphatic elastomer modifiers. Three different types of aliphatic elastomeric materials and three ...
The effect of strain and spatial Bi distribution on the band alignment of GaAsBi single quantum well structure

Gunes, Mustafa; Donmez, O.; Gumus, C.; Erol, A.; Alghamdi, H.; Alhassan, S.; Alhassni, A.; Alotaibi, S.; Schmidbauer, M.; Galeti, H. V. A.; Henini, M. (PHYSICA B-CONDENSED MATTER / ELSEVIER, 2021-02)

The band line-up and band offset calculations of GaAs0.978Bi0.022/GaAs single quantum well with spatial changes of Bi composition were reported. The spatial Bi profile and a certain amount of the Bi composition in the ...
Immobilized TiO2/ZnO Sensitized Copper (II) Phthalocyanine Heterostructure for the Degradation of Ibuprofen under UV Irradiation

BethelAnucha, Chukwuka; Altin, IIknur; Bacaksiz, Emin; Degirmencioglu, Ismail; Kucukomeroglu, Tayfur; Yilmaz, Salih; Stathopoulos, Vassilis N. (SEPARATIONS / MDPI, 2021-03)

Photocatalytic coatings of TiO2/ZnO/CuPc were developed on stainless steel substrates by subsequent sol gel dip coating for TiO2, spray pyrolysis for ZnO, and spin coating for copper (ii) phthalocyanine (CuPc) deposition. ...
Ultrasonic-assisted production of precipitated calcium carbonate particles from desulfurization gypsum

Altiner, Mahmut; Top, Soner; Kaymakoglu, Burcin (ULTRASONICS SONOCHEMISTRY / ELSEVIER, 2021-04)

This study aimed to investigate the effect of ultrasonic application on the production of precipitated calcium carbonate (PCC) particles from desulfurization gypsum via direct mineral carbonation method using conventional ...
Çözücü ve Isıl İşlem Sürecinin MoS2 İnce Filmlerinin Yapısal Özelliklerine Etkisinin İncelenmesi

Kivrak, Burak; Akyol, Mustafa (Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi (DEU FMD) = Dokuz Eylul University Faculty Of Engineering Journal Of Science And Engineering, 2022-01)

Son yıllarda, geçiş metali kalkojenleri (GMK) kendilerine özgü fiziksel ve kimyasal özelliklerinden dolayı çokça çalışılan malzeme gruplarından biri olmuştur. GMK’ler, optoelektronik uygulamalarda, hidrojen evrim reaksiyonları, ...
Preparation and Characterization of Calcite Loaded Poly (Lactic Acid) Composite Materials

Dike, Ali Sinan (Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi = Erzincan University Journal of Science and Technology / Erzincan Üniversitesi, 2020-03)

In this work, calcite (KS) mineral was compounded with poly (lactic acid) (PLA) at the concentrations of 5, 10, 15 and 20 wt% using extrusion process. Test samples of PLA and composites were prepared by injection molding. ...
Artificial Photosynthesis with Titania Photocatalysts

Yurtsever, Husnu Arda; Ciftcioglu, Muhsin (Natural and Applied Sciences Journal / İzmir Demokrasi Üniversitesi, 2019-12)

Increasing energy demand and global warming due to extensive use of fossil fuels will soon force mankind to use clean and sustainable fuels and artificial photosynthesis is being considered as a promising solution to both ...
Kil İçeriği Yüksek Aslantaş Baraj Gölü Çökelti Malzemesinin Seramik Üretiminde Kullanılabilirliğinin Araştırılması

Kilinc Mirdalli, Nergis; Daday, Mustafa; Taykurt Daday, Mine (Çukurova Üniversitesi Mühendislik-Mimarlik Fakültesi Dergisi / Çukurova Üniversitesi, 2019)

Aslantaş Baraj Gölü, Karatepe-Aslantaş Milli Parkı ve Açık Hava Müzesi’ne komşu olan kıyılara sahip bir baraj gölüdür. Bu bölgenin tarihi değeri düşünüldüğünde, çökelen hammaddenin tanınması ve seramiklerde kullanımının ...
A Study on Hydrothermal Grown CdS Nanospheres: Effects of Cd/S Molar Ratio

Yilmaz, Salih; Tomakin, Murat; Unverdi, Ahmet; Aboghalon, Abdulaziz (Gazi University Journal of Science / Gazi University, 2019)

The study reports the influences of altering of Cd/S molar ratio on some physical properties of hydrothermal grown CdS nanospheres. Cd/S molar ratios were chosen as 1:0.5, 1:1, 1:2, 1:3 and 1:4 in the stock solution. X-ray ...
Effect of Eu Doping on the Structural, Magnetic and Magnetocaloric Properties in La0.85Ag0.15MnO3

Akyol, Mustafa (Çukurova Üniversitesi Mühendislik-Mimarlik Fakültesi Dergisi / Çukurova Üniversitesi, 2018)

In this research, the effect of Eu doping on the structural, magnetic and magnetocaloric properties inLa0.85Ag0.15MnO3 sample synthesized by sol-gel technique has been studied. The structural analysis showthat crystal ...
Effect of heavy metal layer thickness on spin-orbit torque and current-induced switching in Hf broken vertical bar CoFeB broken vertical bar MgO structures

Akyol, Mustafa; Jiang, Wanjun; Yu, Guoqiang; Fan, Yabin; Gunes, Mustafa; Ekicibil, Ahmet; Amiri, Pedram Khalili; Wang, Kang L. (APPLIED PHYSICS LETTERS / AMER INST PHYSICS, 2016-07)

We study the heavy metal layer thickness dependence of the current-induced spin-orbit torque (SOT) in perpendicularly magnetized Hf|CoFeB|MgO multilayer structures. The damping-like (DL) current-induced SOT is determined ...
Mechanical properties of aluminum foams ceramic coated through plasma electrolytic oxidation

Cavuslu, Fatih; Korkmaz, Kemal; Usta, Metin (KOVOVE MATERIALY-METALLIC MATERIALS / REDAKCIA KOVOVE MATERIALY, 2019)

Plasma electrolytic oxidation (PEO) treatment is carried out to improve the mechanical properties of the open-cell aluminum foams. Two different pore densities of open-cell aluminum foams (20 PPI and 40 PPI) were treated ...
Enhanced efficiency of CdS/P3HT hybrid solar cells via interfacial modification

Yilmaz, Salih; Polat, Ismail; Tomakin, Murat; Unverdi, Ahmet; Bacaksiz, Emin (TURKISH JOURNAL OF PHYSICS / SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2019)

The present paper examines the effects of surface modification of CdS with diverse dyes on fabricated CdS-based hybrid solar cells. The X-ray diffraction results showed that CdS thin films had a hexagonal phase with a ...
Exciton localization and structural disorder of GaAs1-xBix/GaAs quantum wells grown by molecular beam epitaxy on (311)B GaAs substrates

Prando, G. A.; Orsi Gordo, V.; Puustinen, J.; Hilska, J.; Alghamdi, H. M.; Som, G.; Gunes, M.; Akyol, M.; Souto, S.; Rodrigues, A. D.; Galeti, H. V. A.; Henini, M.; Galvao Gobato, Y.; Guina, M. (SEMICONDUCTOR SCIENCE AND TECHNOLOGY / IOP PUBLISHING LTD, 2018-08)

In this work, we have investigated the structural and optical properties of GaAs(1-x)Bix/GaAs single quantum wells (QWs) grown by molecular beam epitaxy on GaAs (311)B substrates using x-ray diffraction, atomic force ...
Structural and optical properties of diluted magnetic Ga1-xMnxAs-AlAs quantum wells grown on high-index GaAs planes

Gunes, Mustafa; Gumus, Cebrail; Gobato, Yara Galvao; Henini, Mohamed (BULLETIN OF MATERIALS SCIENCE / INDIAN ACAD SCIENCES, 2017-12)

We report on the structural and optical properties of Ga1-xMnxAs-AlAs quantum wells (QWs) with x = 0.1% grown by molecular beam epitaxy (MBE) on semi-insulating GaAs substrates with orientations (100), (110), (311)B and ...

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