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Recent submissions

Metalurji ve Malzeme Mühendisliği / Metallurgy and Materials Engineering: Recent submissions

Now showing items 361-380 of 607

Surface properties of M2 steel treated by pulse plasma technique

Yaralı Özbek, Yıldız; Akbulut, Hatem; Durman, Mehmet (PERGAMON-ELSEVIER SCIENCE LTD, 2015)

In this study, the surface properties of a M2 steel (high speed steel) was investigated in respect to mechanical and microstructural aspects. Three were three different sample-plasma gun nozzle distances (30, 40 and 50 mm) ...
ITO/MWCNT Nanocomposites as New Novel Anode Electrodes for Li-Ion Batteries

Güler, Mehmet Oğuz; Akbulut, Hatem (AMER SCIENTIFIC PUBLISHERS, 2015)

In this study, we present a new anode electrode consisting of Indium Tin Oxide and multiwall carbon nanotube based buckypapers for high efficient lithium ion batteries. Core/shell Indium Tin Oxide/Buckypapers were produced ...
INTRAVITREAL RANIBIZUMAB INJECTION FOR DIFFUSE DIABETIC MACULAR EDEMA UNRESPONSIVE TO MODIFIED GRID LASER PHOTOCOAGULATION

Çakır, Burçin; Çelik, Esra; E. B. Turkoglu; Erdoğan, Garip; Alagöz, Gürsoy (WICHTIG PUBL, 2015)
EFFECT OF ELECTRIC CURRENT ON THE PRODUCTION OF NiTi INTERMETALLICS VIA ELECTRIC-CURRENT-ACTIVATED SINTERING

Yener, Tuba; Zeytin, Sakin (INST ZA KOVINSKE MATERIALE I IN TEHNOLOGIE, 2015)

This study focuses on investigating the fabrication of in-situ intermetallic NiTi composites from a powder mixture containing the mass fractions 50 % nickel powder and 50 % titanium powder. The elemental powders were mixed ...
Ni/MWCNT Coatings Produced by Pulse Electrocodeposition Technique

Kartal, Muhammet; H. Gul; Uysal, Mehmet; Alp, Ahmet; Akbulut, Hatem (TAYLOR & FRANCIS INC, 2015)

Nickel/multiwalled carbon nanotube (MWCNT) metal matrix composite coatings were deposited by pulse electrocodeposition method from a Watt's-type electrolyte. The influence of the MWCNT content in the electrolyte on the ...
Novel Ag/Li4Ti5O12 binary composite anode electrodes for high capacity Li-ion batteries

Aslihan Erdas; Seyma Ozcan; Deniz Nalci; Güler, Mehmet Oğuz; Akbulut, Hatem (ELSEVIER SCIENCE SA, 2015)

In this study, spinel lithium titanates, Li4Ti5O12, have been synthesized by a simple sol-gel method. Surfaces of assynthesized Li4Ti5O12 powders were then coated with silver. Electrochemical results exhibit that Ag/Li4Ti5O12 ...
COMPARISON OF MODIFIED GRID LASER PHOTOCOAGULATION AND INTRAVITREAL RANIBIZUMAB INJECTION FOR DIFFUSE DIABETIC MACULAR EDEMA

E. Celik; Çakır, Burçin; E. B. Turkoglu; Doğan, Emrah; Erdoğan, Garip; Alagöz, Gürsoy (WICHTIG PUBL, 2015)
Cr and V Substitution in the LiMn(2)O(4)Spinel Positive Electrode Li-Ion Batteries

A. Akbulut; Çetinkaya, Tuğrul; M. O. Guler; Uysal, Mehmet; Akbulut, Hatem (POLISH ACAD SCIENCES INST PHYSICS, 2015)

In this study, LiCr0.2V0.4Mn1.4O4 cathode active electrode materials were produced via a facile sol-gel method at 800 degrees C. The surfaces of the LiCr0.2V0.4Mn1.4O4 cathode active electrode materials were then coated ...
Recanalization of Complete Anastomotic Biliary Obstruction After Living Donor Related Liver Transplantation With a Novel Through-the-Scope Magnet

Parlak, Erkan; Fahrettin Kucukay; Köksal, Aydın Şeref; Eminler, Ahmet Tarık; Uslan, Mustafa İhsan; Yılmaz, Şenol (WILEY-BLACKWELL, 2015)
p-type LiCr0.33V0.33Mn0.33O2 semiconductor as a cathode electrode for high rate Li-ion batteries

Tokur, Mahmud; Aslihan Erdas; Deniz Nalci; Güler, Mehmet Oğuz; Akbulut, Hatem (ELSEVIER SCI LTD, 2015)

Layered LiCr0.33V0.33Mn0.33O2 oxides have attracted attention as cathode materials for lithium ion batteries. These materials are good candidates to replace LiCoO2 used in the commercially available lithium ion batteries. ...
Fabrication of Sn-Ni/MWCNT composite coating for Li-ion batteries by pulse electrodeposition: Effects of duty cycle

Uysal, Mehmet; Çetinkaya, Tuğrul; Alp, Ahmet; Akbulut, Hatem (ELSEVIER, 2015)

Nanocrystalline Sn-Ni/MWCNT composite was prepared by ultrasonic-pulse electrodeposition on a copper substrate in a pyrophosphate bath at different duty cycles. Surface morphology of produced Sn-Ni/MWCNT composites were ...
Electrochemical performance of electroless nickel plated silicon electrodes for Li-ion batteries

Çetinkaya, Tuğrul; Uysal, Mehmet; Akbulut, Hatem (ELSEVIER SCIENCE BV, 2015)

In this study, nickel plated silicon powders were produced using an electroless deposition process. The nickel content on the surface of silicon powders was changed by using different concentrations of NiCl2 in the plating ...
Iznik tiles: A new production technology and respective characterization

Meryem Sariguzel; Yılmaz, Şenol; Günay, Elif Elçin (CARL HANSER VERLAG, 2015)

This study investigated a new production technology for Iznik tiles. High quartz content of Iznik tiles was kept as it was and hydraulic pressing instead of tapping was used for shaping. Besides the traditional pouring ...
Comparison of Oxidation and Thermal Shock Performance of Thermal Barrier Coatings

Abdullah Cahit Karaoglanli; Türk, Ahmet; Ismail Ozdemir; Üstel, Fatih (TAYLOR & FRANCIS INC, 2015)

Operating temperatures in gas turbine engines have reached to 1200 degrees C with the latest developments in coating technology. Thermal shock and furnace oxidation tests are widely used to determine thermal barrier coating ...
Sol-Gel Synthesis of Nanocomposite Cu-Li4Ti5O12 Structures for Ultrahigh Rate Li-Ion Batteries

A. Erdas; Özcan, Serdar; M. O. Guler; Akbulut, Hatem (POLISH ACAD SCIENCES INST PHYSICS, 2015)

In this study, spinel Li4Ti5O12 materials were successfully synthesized by a simple and facile sol-gel process and electroless copper deposition techniques. The characteristics of the as-prepared Li4Ti5O12 and Cu-Li4Ti5O12 ...
Dry sliding friction and wear behavior of self-lubricating wollastonite filled polycarbonate composites

Akıncı, Akın (EMERALD GROUP PUBLISHING LTD, 2015)

Originality/value - There are many reports which deal with the friction and wear performance of the polymers and polymer composites. However, the effect of wollastonite effect on tribological performance of PC has up to ...
Tribological Properties of TiO2 Reinforced Nickel Based MMCs Produced by Pulse Electrodeposition Technique

Algül, Hasan; H. Gul; Uysal, Mehmet; Alp, Ahmet; Akbulut, Hatem (SPRINGER INDIA, 2015)

Nickel-TiO2 composite coatings were prepared under pulse current conditions by co-deposition of TiO2 particles and nickel from a Watts type bath. The effect of TiO2 particle concentration was studied on microhardness, ...
The effect of LiBF4 concentration on the discharge and stability of LiMn2O4 half cell Li ion batteries

Dombaycıoğlu, Şeyma; Köse, Hilal; Aydın, Ali Osman; Akbulut, Hatem (ELSEVIER SCI LTD, 2015)

Electrolytes were prepared with different LiBF4 salt concentrations in the ratio of 2:1 (w/w) Ethylene Carbonate (EC): Dimethyl Carbonate (DMC) solvents. Different LiBF4 concentrations were used in the electrolytes to ...
Effect of pre-setting pressure applied flexure strength and fracture toughness of new SIFCON plus RPC composite during setting phase

İpek, Metin; Aksu, Mecbure; Uysal, Mehmet; Yılmaz, Kerem Cenk; Vural, İsa (ELSEVIER SCI LTD, 2015)

Reactive powder concrete (RPC) and Slurry Infiltrated Fiber Concrete (SIFCON) are steel fiber-reinforced cement composites which have superior mechanical properties such as compressive, tensile, shear and flexural strength ...
The Electrochemical Properties of Cu Coated LiCr0.2V0.2Mn0.6O2 Nanocomposites for High Rate Li-Ion Batteries

Algül, Hasan; A. Erdas; Tokur, Mahmud; M. O. Guler; Akbulut, Hatem; Alp, Ahmet (POLISH ACAD SCIENCES INST PHYSICS, 2015)

Several reported problems of commercial LiCoO2 electrode materials such as high cost, toxicity, limited rate capability and safety concerns are still remain to be problematic to develop the lithium ion consumer electronics ...