Güncel Gönderiler: Fakülteler
Toplam kayıt 10075, listelenen: 921-940
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Size evolution of nanomagnetic particles and magnetotransport properties of (Co 90Fe 10) 20Ag 80 nanogranular films: Influence of Cu 80Ag 15Au 5 underlayer
(2012)The influence of (Co 90Fe 10) 20Ag 80 film thickness and of Cu 80Ag 15Au 5 underlayer on nanomagnetic, magnetotransport and structural properties of (Co 90Fe 10) 20Ag 80 nanogranular films prepared by ultra-high vacuum ion ... -
Characterization of underclays from Agaçli-Kemerburgaz region of Istanbul/Turkey and their evaluation for porcelain tile production
(2011)Agacli-Kemerburgaz area, NW of Istanbul, is one of the most important underclay deposits of Turkey. This area is composed of Paleozoic sedimentary sequence, Upper Cretaceous volcanic rocks, Neogene sediments and Quaternary ... -
Deposition potential dependence of composition, microstructure, and surface morphology of electrodeposited Ni-Cu alloy films
(Springer New York LLC, 2012)Composition, microstructure, and surface morphology of Ni-Cu alloy films electrodeposited at different deposition potentials have been investigated. The microstructural analysis carried out by using X-ray diffraction (XRD) ... -
Synthesis of fe-mn black pigments by using hematite waste and manganese ore mixtures
(2012)In this study, development of a new black pigment for colouring porcelain tiles by calcination of hematite waste and natural manganese ore mixtures were investigated as a way to produce cost-effective pigment. It was found ... -
Effects of production method and space holder material on microstructure of porous titanium
(European Powder Metallurgy Association (EPMA), 2012)The use of space holder particles is now a well-known and common method for production of porous titanium implants. It is possible to control porosity and pore structure by the use of a variety of spacer materials available. ... -
Fabrication of in situ Ni(W)-WC nano composites via mechanical alloying and spark plasma sintering
(2012)Microstructural and mechanical properties of spark plasma sintered Ni-30 wt% W powders fabricated via mechanical alloying (MA) for 48 h were reported in the present study. Due to the intensive WC contamination during MA, ... -
Fabrication and characterization of Ni-W solid solution alloys via mechanical alloying and pressureless sintering
(2012)Ni-W solid solution alloy powders and sintered compacts were fabricated via mechanically alloying and pressureless sintering of powder batches with the compositions of Ni-xW (x=20, 30, 40wt.%). The crystallite size of the ... -
Ferromagnetic resonance and X-ray reflectivity studies of pulsed DC magnetron sputtered NiFe/IrMn/CoFe exchange bias
(2012)Ferromagnetic resonance and X-ray specular reflectivity measurements were performed on Ni81Fe19/Ir20Mn80/ Co90Fe10 exchange bias trilayers, which were grown using the pulsed-DC magnetron sputtering technique on Si(100)/SiO2(1000 ... -
Synchrotron texture analysis of thick BiFeO 3-PbTiO 3 layers synthesised by tape casting using Aurivillius and non-Aurivillius templates
(2012)The solid solution between bismuth ferrite and lead titanate (xBiFeO 3-(1-x)PbTiO 3 or BFPT) possesses a morphotropic phase boundary (MPB) between the rhombohedral and tetragonal forms at x=0.7. It is of interest to ... -
Characterization of mechanical properties of porcelain tile using ultrasonics
(2012)Ultrasound affords a very useful and versatile non-destructive method, using a large application area, for evaluating the microstructure and mechanical properties of materials. In this study, porcelain tiles were sintered ... -
Influence of post-annealing on electrical, structural and optical properties of vanadium oxide thin films
(2013)Vanadium oxide thin films were grown onto quartz substrates using the pulsed DC reactive magnetron sputtering technique at room temperature and afterwards post annealed under vacuum conditions in the temperature range from ... -
Characterization of Ni-W solid solution alloy powders and sintered compacts synthesized via mechanically activated hydrogen reduction of NiO-WO3 mixtures
(2013)Blended nickel oxide - tungsten oxide powders corresponding to the compositions of 70 wt% nickel - 30 wt% tungsten were mechanically alloyed (MA'd) for different durations such as 0 h, 6 h, 12 h and 24 h and reduced/alloyed ... -
Interface roughness and exchange bias - Coercivity ratio in Pulsed-DC magnetron sputtered NiFe/IrMn/CoFe exchange bias trilayers
(2013)Ta/Ru/Ta/Ni81Fe19/Ir20Mn 80/Co90Fe10 exchange bias multilayer was grown by using pulsed DC unbalanced magnetron sputtering technique. The deposition pulse frequency of the NiFe seed layer has been varied between 10 - 50 ... -
Production and permeability of porous Si 3 N 4 ceramics produced by starch addition
(Taylor and Francis Ltd., 2013)•We produce highly porous (up to 66%) Si 3 N 4 .•We enhance the permeability of Si 3 N 4 by using starch as pore former.•Increasing starch amount (?20vol.%) created large and bimodal pore channels and permeability values ... -
Microstructural evolution of mechanically alloyed and spark plasma sintered Ni-W alloy matrix composites
(2013)Microstructural evolution of Ni(W) solid solution alloys fabricated via mechanical alloying (MA) of Ni - 30 wt.% W powders and spark plasma sintering (SPS) at 1000 C for 3 min were presented in this study. Due to contaminations ... -
SERAMİK SAĞLIK GEREÇLERİ BÜNYELERİNDE CAMSI FAZ KOMPOZİSYONUNUN PİŞİRİM SICAKLIKLARINA ETKİSİ
(2013)Bu çalışmada seramik sağlık gereçleri bünyelerinde, kimyasal kompozisyonla birlikte camsı faz viskozitesinin değişimi incelenmiştir. Ayrıca, bu değişimin sinterleme sıcaklıkları üzerine etkisi araştırılmıştır. Seramik bünyedeki, ... -
Characterization of microstructural and morphological properties in as-deposited Ta/NiFe/IrMn/CoFe/Ta multilayer system
(Chinese Society of Metals, 2014)Surface morphology and its relationship with microstructure in Ta/NiFe/IrMn/CoFe/Ta multilayer system deposited by pulsed DC magnetron sputtering have been investigated in dependence of Ta buffer and NiFe seed layer ... -
FMR study of ultrahigh vacuum e-beam evaporated Co 23Cu 77 nanogranular films: Magnetotransport properties
(2006)The magnetic, magnetotransport and structural properties of Co 23Cu 77 granular thin films (7-43 nm) have been investigated using ferromagnetic resonance (FMR) and high-resolution XRD techniques. Co particles possess a ... -
Determination of thickness, density and roughness of Co-Ni-Al single and multiple layer films deposited by high-vacuum e-beam evaporation on different substrates
(2006)Thickness, density, surface and interface roughness of Al-Co-Ni single and multiple layer films deposited by high-vacuum e-beam evaporation on different substrates were investigated using X-ray reflectivity (XRR). The ... -
Mechanical properties and thermal shock behaviour of model MgO-MgAl 2O4 spinel composite refractories
(2006)The effects of varying the amounts (5 to 30 wt%) and particle sizes of magnesium aluminate spinel (i.e. preformed and in-situ formed) incorporated in a fully dense MgO, were investigated. Mechanical properties were measured ...
