Mühendislik Fakültesi: Recent submissions

Now showing items 361-380 of 2863

Comparison microstructure and sliding wear properties of nickel-cobalt/CNT composite coatings by DC, PC and PRC current electrodeposition

Karslıoğlu, Ramazan; Akbulut, Hatem (ELSEVIER, 2015)

Nickel-cobalt (Ni-Co) alloys and Ni-Co/multiwalled carbon nanotube (MWCNT) composite coatings were prepared under direct current (DC), pulse current (PC) and pulse reverse current (PRC) methods. The effect of different ...
Preparation and characterization of bronze/SiCp composites produced via current activated sintering method

H. Gul; Uysal, Mehmet; Alp, Ahmet; Akbulut, Hatem (ELSEVIER SCI LTD, 2015)

In this study, bronze matrix was reinforced with nickel coated nano SiC particles using mechanical alloying and then subsequent rapid current sintering technique. Mechanical ball milling of bronze matrix composite powders ...
Wear Properties of TIG Surface Alloyed Steel with 50%Fe-10%W-40%B Alloy

Abakay, Eray; Kılınç, Bülent; Şen, Şaduman; Şen, Uğur (POLISH ACAD SCIENCES INST PHYSICS, 2015)

In the present study, AISI 1020 plain carbon steel was surface alloyed with preplaced 50%Fe-10%W-40%B alloying powders using a tungsten inert gas (TIC) heat source. Microstructure, hardness, and wear resistance of the ...
Crystallization kinetics of mica glass-ceramic in the SiO2-Al2O3-MgO-K2O-B2O3 -F-2 System

Ercenk, Ediz; Yılmaz, Şenol (KOREAN ASSOC CRYSTAL GROWTH, INC, 2015)

A mica glass-ceramic in the SiO2-Al2O3-MgO-K2O-B2O3-F-2 glass system was prepared by a melting method. The crystallization behaviour and crystallization kinetics of a sample with glass-ceramic composition were examined. ...
Effect of surfactant concentration in the electrolyte on the tribological properties of nickel-tungsten carbide composite coatings produced by pulse electro co-deposition

Kartal, Muhammet; Uysal, Mehmet; Alp, Ahmet; Akbulut, Hatem (ELSEVIER SCIENCE BV, 2015)

A nickel plating bath containing WC particles was used to obtain hard and wear-resistant particle reinforced Ni/WC MMCs on steel surfaces for anti-wear applications. Copper substrates were used for electro co-deposition ...
Microstructural evaluation and characterization of solid-state reaction of B2O3 doped BaZrxTi1-xO3 ceramics

Kerim Emre Oksuz; Şen, Şaduman; Şen, Uğur (SPRINGER, 2015)

0.5 wt. % B2O3 doped BaZrxTi1-xO3 ceramics (x = 0, 0.1, 0.2, 0.3, 0.4) were synthesized by adapting the solid-state synthesis method. B2O3 used as a sintering additive in the BT and BZT ceramics can vaporize easily at high ...
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 ...