Mühendislik Fakültesi: Recent submissions

Now showing items 341-360 of 2863

Tribological Properties of Vanadium Nitride Coated AISI 52100 Steel

Şen, Şaduman; Şen, Uğur (2012)
Co-deposition of Cu/WC/graphene hybrid nanocomposites produced by electrophoretic deposition

Akbulut, Hatem; Hatipoğlu, Gizem; Algül, Hasan; Tokur, Mahmud; Kartal, Muhammet; Uysal, Mehmet; Çetinkaya, Tuğrul (ELSEVIER SCIENCE SA, 2015)

The effects of two different reinforcements of WC and graphene on the structural and tribological properties of copper matrix were investigated. Cu/WC, Cu/graphene and hybrid Cu/WC/graphene nanocomposites were co-deposited ...
Structural properties of size-controlled SnO2 nanopowders produced by sol-gel method

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

SnO2 nanoparticles were synthesized by sol-gel method with different sol concentrations and the effect of sol concentration on the structural properties of SnO2 was investigated. The aim of this work is synthesizing of ...
The effect of graphene content and sliding speed on the wear mechanism of nickel-graphene nanocomposites

Algül, Hasan; Tokur, Mahmud; Şeyma Özcan; Uysal, Mehmet; Çetinkaya, Tuğrul; Akbulut, Hatem; Alp, Ahmet; Alp, Ahmet (ELSEVIER SCIENCE BV, 2015)

Nickel-graphene metal matrix composite coatings were fabricated by pulse electrodeposition technique from a Watt's type electrolyte. Effect of the graphene concentration in the electrolyte on the microstructure, microhardness, ...
In Situ Formation of Ti-TiAl3 Metallic-Intermetallic Composite by Electric Current Activated Sintering Method

Yener, Tuba; Okumuş, Sefer Cem; Zeytin, Sakin (2015)
Binary Cu/LiCr2/3V1/6Mn1/6O2 p-type semiconductor nanocomposite structures as cathode electrodes for Li-ion batteries

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

In this study, a strategy used to design high capacity, Cu coated LiCr2/3V1/6Mn1/6O2 electrodes for lithium-ion batteries is discussed. The advantages of the LiCr2/3V1/6Mn1/6O2 component and its influence on the structural ...
MAGNETRON SPUTTERED ZNO ON MWCNT FOR LI-ION BATTERY NEGATIVE ELECTRODES

Akbulut, Hatem (TANGER, 2015)

In this study, ZnO/MWCNT nanocomposites are produced by magnetron sputtering radio frequency (RF) plasma process as anode materials for Li-ion batteries. The physical, structural, and electrochemical behaviors of the ...
Double Buffering Effect on the Electrochemical Behavior of Pulse Electro co-deposited Sn-Ni/MWCNT Nanocomposite Electrodes for Lithium-ion Batteries

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

Tin-Nickel/multiwalled carbon nanotube (MWCNT) composite plating was performed using a pyrophosphate bath. To reduce irreversible capacity and improve cycle performance of tin electrodes, Sn-Ni/MWCNT nanocomposite electrodes ...
Graphene oxide/alpha-MnO2 nanocomposite electrodes produced using planetary ball milling for Li-O-2 batteries

Çetinkaya, Tuğrul; Tokur, Mahmud; Şeyma Özcan; Algül, Hasan; Uysal, Mehmet; Akbulut, Hatem (ELSEVIER SCIENCE BV, 2015)

Graphene Oxide (GO)/alpha-MnO2 nanocomposite air breathing cathodes were prepared using mechanical alloying method. For preparation of GO/alpha-MnO2 nanocomposite cathodes, GO was produced by Hummer's method and alpha-MnO2 ...
Springer Proceedings in Physics

Tugce Gokkaya; Yaralı Özbek, Yıldız; Ek Polychroniadis; Ay Oral; Özer, Mustafa (SPRINGER INT PUBLISHING AG, 2015)

This method can be used for the surface modification treatment of materials producing different surface properties. This paper presents the results obtained from an experimental work investigating the changes in some ...
Indications and clinical outcomes of capsular tension ring implantation in phacoemulsification surgery at a tertiary teaching hospital: A review of 4316 cataract surgeries

E. Celik; B. Koklu; Doğan, Emrah; Erdoğan, Garip; Alagöz, Gürsoy (MASSON EDITEUR, 2015)

Conclusion. - The frequency of CTR implantation was 0.97% due to our study. In complicated cataract surgeries, CTR implantation seems to improve clinical outcomes. (C) 2015 Elsevier Masson SAS. All rights reserved.
High Rate Capability Core Shell SnO2/Multiwall Carbon Nanotube Nano Composite Electrodes for Li-Ion Batteries

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

In this study, core shell SnO2/MWCNT nanocomposites were produced as a high rate anode material for Li-ion batteries via two steps. Firstly, MWCNT based buckypapers were produced via vacuum filtration techniques. Then, a ...
Effects of mechanical activation on the structure of talc

Kırsever, Derya; Toplan, Nil; Toplan, Hüseyin Özkan (KOREAN ASSOC CRYSTAL GROWTH, INC, 2015)

This paper presents the results of research on mechanical activation of raw talc in planetary mill. Raw talc was mechanically activated in a planetary mill for five different grinding times as 15 min, 30 min, 45 min, 60 ...
Cyclic Performance Tests of Si/MWCNT Composite Lithium Ion Battery Anodes at Different Temperatures

Toçoğlu, Ubeyd; Cevher, Özgür; Akbulut, Hatem (POLISH ACAD SCIENCES INST PHYSICS, 2015)

In this study silicon-multi walled carbon nanotube (Si-MWCNT) lithium ion battery anodes were produced and their electrochemical galvanostatic charge/discharge tests were conducted at various (25 degrees C, 35 degrees C, ...
Si/Mo/MWCNT Nanocomposites for Lithium Ion Battery Applications

Çetinkaya, Tuğrul; Uysal, Mehmet; Tokur, Mahmud; Kartal, Muhammet; Akbulut, Hatem (POLISH ACAD SCIENCES INST PHYSICS, 2015)

In this study, silicon/multi-wall carbon nanotube (Si/MWCNT) and silicon/molybdenum/multi-wall carbon nanotube (Si/Mo/MWCNT) composites were produced by high speed planetary ball milling. Produced Si/MWCNT composite ...
Springer Proceedings in Physics

Canikoğlu, Nuray; Demirkıran, Ayşe Şükran; Ek Polychroniadis; Ay Oral; Özer, Mustafa (SPRINGER INT PUBLISHING AG, 2015)

In this study, usage of gabbro and zeolite in the manufacturing of ceramic products were investigated. Three different compositions which consist of zeolite and gabbro as starting materials were prepared to manufacture a ...
Effects of B2O3 Addition on the Sintering Behavior of 0-5-10% ZrO2 Doped BaTiO3 Based Ceramics

K. E. Oksuz; Şen, Şaduman; Şen, Uğur (POLISH ACAD SCIENCES INST PHYSICS, 2015)

In this study, the effect of B2O3 addition on the sintering behavior of 0-5-10% ZrO2 doped barium titanate based microwave dielectric ceramics were investigated. For this purpose, the powder mixtures consisting of BaCO3, ...
SURFACE BEHAVIOR OF AISI 4140 MODIFIED WITH THE PULSED-PLASMA TECHNIQUE

Yaralı Özbek, Yıldız; Durman, Mehmet (INST ZA KOVINSKE MATERIALE I IN TEHNOLOGIE, 2015)

In this study, the microstructure and surface properties of a low-alloy steel (AISI 4140) treated with pulsed plasma were investigated. Three different plasma-gun nozzle distances of (60, 70 and 80) mm and one battery ...
The Effect of Inorganic Nano Powder Additives in TEGDME for Lithium Air Batteries

Kartal, Muhammet; Uysal, Mehmet; Çetinkaya, Tuğrul; Alp, Ahmet; Akbulut, Hatem (POLISH ACAD SCIENCES INST PHYSICS, 2015)

SiO2 and Al2O3 nano fillers were added to an electrolyte composed of a solution 1 M LiPF6 in tetra ethylene glycol dimethyl ether (TEGDME) and the effects of these nano powders on capacity and cycling performances were ...
A facile synthesis of zinc oxide/multiwalled carbon nanotube nanocomposite lithium ion battery anodes by sol-gel method

Köse, Hilal; Dombaycıoğlu, Şeyma; Aydın, Ali Osman; Akbulut, Hatem (ELSEVIER SCIENCE BV, 2015)

Free standing zinc oxide (ZnO) and multiwalled carbon nanotube (MWCNT) nanocomposite materials are prepared by a sol gel technique giving a new high capacity anode material for lithium ion batteries. Freestanding ZnO/MWCNT ...