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Browsing Materials Engineering / Malzeme Mühendisliği by Issue Date

Browsing Materials Engineering / Malzeme Mühendisliği by Issue Date

Now showing items 1-20 of 27

Effect of B4C Content on the Mechanical and Tribological Performances of Polypropylene

Dike, Ali Sinan; Mindivan, Ferda; Mindivan, Harun (ACTA PHYSICA POLONICA A / POLISH ACAD SCIENCES INST PHYSICS, 2014-02)

Boron carbide (B4C) reinforced polypropylene (PP) was prepared by twin-screw extrusion and injection molding. In the present study, the effect of B4C content on the mechanical properties and wear behavior of the PP composites ...
Magnetotransport study on as-grown and annealed n- and p-type modulation-doped GaInNAs/GaAs strained quantum well structures

Donmez, Omer; Sarcan, Fahrettin; Erol, Ayse; Gunes, Mustafa; Arikan, Mehmet Cetin; Puustinen, Janne; Guina, Mircea (NANOSCALE RESEARCH LETTERS / Springer Open, 2014-03)

We report the observation of thermal annealing- and nitrogen-induced effects on electronic transport properties of as-grown and annealed n- and p-type modulation-doped Ga1-xInxNyAs1-y (x = 0.32, y = 0, 0.009, and 0.012) ...
Defect-mediated ferromagnetism in ZnO:Mn nanorods

Yilmaz, Salih; McGlynn, Enda; Bacaksiz, Emin; Bogan, Justin (APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING / SPRINGER, 2014-04)

In this work, the structural, chemical and magnetic properties of ZnO:Mn nanorods were investigated. Firstly, well-aligned ZnO nanorods with their long axis parallel to the crystalline c-axis were successfully grown by the ...
Synthesis and characterization of Mn-doped ZnO nanorods grown in an ordered periodic honeycomb pattern using nanosphere lithography

Yilmaz, Salih; Garry, Seamus; McGlynn, Enda; Bacaksiz, Emin (CERAMICS INTERNATIONAL / ELSEVIER SCI LTD, 2014-07)

We report a study of the structural, optical and magnetic properties of undoped and Mn-doped ZnO nanorods grown by chemical bath deposition in a periodic honeycomb lattice formation. Mn-doping is accomplished by a diffusion ...
Synthesis and fabrication of Mg-doped ZnO-based dye-sensitized solar cells

Polat, Ismail; Yilmaz, Salih; Bacaksiz, Emin; Atasoy, Yavuz; Tomakin, Murat (JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS / SPRINGER, 2014-10)

Undoped and 2, 4 and 6 at.% Mg-doped ZnO nanorods were successfully deposited on ZnO seeded fluorine tin oxide substrates by a simple chemical bath deposition technique to form a photoanode. It was seen that all the samples ...
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 ...
Sılar metodu ile hazırlanan Cu2O ince filmlerin fiziksel özellikleri

Ozaslan, Dogan; Gunes, Mustafa; Gumus, Cebrail (PAMUKKALE UNIVERSITY JOURNAL OF ENGINEERING SCIENCES-PAMUKKALE UNIVERSITESI MUHENDISLIK BILIMLERI DERGISI / PAMUKKALE UNIV, 2017)

Silar metodu kullanılarak 70 °C'de cam alttabanlar üzerine polikristal Cu2O ince filmleri elde edildi. XRD analizleri filmlerin kübik yapıda olduğunu gösterdi ve örgü parametreleri hesaplandı. Filmlerin yüzey morfolojisi ...
Role of Mg doping in the structural, optical, and electrical characteristics of ZnO-based DSSCs

Polat, Ismail; Yilmaz, Salih; Tomakin, Murat; Bacaksiz, Emin (TURKISH JOURNAL OF PHYSICS / SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2017)

ZnO- and Mg-doped ZnO samples are prepared by spray pyrolysis on conducting glass substrates to fabricate ZnO-based dye-sensitized solar cells (DSSCs). Influences of Mg-doping content on the power conversion efficiencies ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...

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