Yazar "Meydan, Turgut" için listeleme
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Characterisation of evaporated and laser-ablated 3% silicon-iron
Köçkar, Hakan; Meydan, Turgut (Elsevier Science Bv, 2002)A novel rotating cryostat vacuum system originally designed to fabricate organic layers has been used for the first time to evaporate 3% silicon-iron magnetic materials. Results of all films deposited on glass and silicon ... -
Factors affecting magnetic properties of evaporated iron films
Köçkar, Hakan; Meydan, Turgut (Elsevier Science Bv, 2002)The factors determining the magnetic properties of iron films evaporated from an evaporation source positioned around a novel rotating cryostat (RC) system have been discussed. Results show all films exhibit isotropic ... -
In-plane anisotropy and stress detection of films deposited by RC technique
Meydan, Turgut; Köçkar, Hakan (Springer-Verlag, 2001)A Novel Rotating Cryostat (RC) vacuum system originally designed to fabricate organic layers has,been developed in order to prepare magnetic materials for specific applications such as sensors. The RC sputtering system has ... -
Influence of deposition parameters of Novel Vacuum Coating Plant on evaporated Ni60Fe40 and Ni80Fe20 films
Köçkar, Hakan; Williams, Paul I.; Alper, Mürsel; Karaağaç, Öznur; Meydan, Turgut (Amer Scientific Publishers, 2009)The aim of this study is to deposit and then characterize a large quantity of magnetic materials and understand how the Novel Vacuum Coating Plant (VCP) system affects the properties of the materials. Ni60Fe40 and Ni80Fe20 ... -
Influence of deposition potentials applied in continuous and pulse waveforms on magnetic properties of electrodeposited nickel-iron films
Alper, Mürsel; Köçkar, Hakan; Kuru, Hilal; Meydan, Turgut (Elsevier Science Sa, 2006)The effect of the various cathode potentials applied in continuous and pulse waveforms on magnetic anisotropy of NiFe alloy films grown on (100) textured polycrystalline copper substrates has been studied. Magnetic ... -
The influence of production conditions on the magnetic properties of sputtered and laser deposited thin films
Meydan, Turgut; Köçkar, Hakan (Natl Inst Optoelectronics, 2004)A comparison between the magnetic properties of iron films deposited by dc sputtering and laser ablation is reported here. Results show that sputtered films generally exhibit isotropic behaviour when deposited on rigid ... -
Investigation of deposition parameters and output functions, and production of low coercivity films
Köçkar, Hakan; Meydan, Turgut (E D P Sciences, 2002)The correlation of deposition parameters with output functions when using a novel rotating cryostat (RC) system to produce magnetic materials has been investigated here. In order to do this, an orthogonal design technique ... -
Magnetic anisotropy and its thickness dependence for NiFe alloy films electrodeposited on polycrystalline Cu substrates
Köçkar, Hakan; Alper, Mürsel; Kuru, Hilal; Meydan, Turgut (Elsevier Science Bv, 2006)The thickness dependence of magnetic properties of NiFe alloys electrodeposited on polycrystalline copper substrates has been investigated. In order to see how the film thickness affects their properties, the films with ... -
Magnetic characterization of silicon-iron magnetic material produced by a novel rotating cryostat
Meydan, Turgut; Williams, Paul; Köçkar, Hakan (Elsevier Science Bv, 2003)A rotating cryostat vacuum system has been used to deposit Si3Fe97 magnetic films. Observations indicate that in-plane magnetic anisotropy and coercivity is dependent on the type of substrate and the deposition method used. ... -
Magnetic properties of dc magnetron sputtered and evaporated amorphous films
Köçkar, Hakan; Meydan, Turgut (Springer, 2002)Compositions. of Fe81B13.5Si3.5C2, Fe67Co18Si1B14 and Fe5.85Co72.15Mo2B15Si5 were deposited on to rigid and flexible substrates for the first time using a dc sputtering source as part of a novel Rotating Cryostat (RC). The ... -
Modelling of the stress distribution in amorphous toroidal transducer cores
Göktepe, Mustafa; Choudhary, Pratik; Meydan, Turgut (E D P Sciences, 1998)It is very important to understand, stress distribution and variation of stress due ro applied displacement in toroidal cores in order to improve the sensitivity, accuracy and repeatability of the amorphous toroidal ... -
Production and characterisations of thin films deposited by a novel vacuum coating plant (VCP)
Köçkar, Hakan; Meydan, Turgut; Alper, Mürsel; Güngör, Elif (Elsevier Science Sa, 2006)This paper reports a novel vacuum coating plant (VCP) system to prepare magnetic thin films. The first step of this extensive investigation was to evaporate and characterise simple iron films on various substrate in order ... -
The rotation and clamping effect on the magnetic properties of iron films deposited onto a rotating substrate
Köçkar, Hakan; Meydan, Turgut (Elsevier Science Bv, 2002)We have investigated the effect of fabrication conditions on the magnetic anisotropy of iron films produced by a novel rotating cryostat (RC) system. Clamped films exhibited uniaxial in-plane anisotropy with the easy axis ... -
Specific power loss comparisons of magnetic strips using standard Epstein frame
Köçkar, Hakan; Meydan, Turgut (Korean Physical Soc, 2002)Amorphous magnetic materials are now competing in some of the markets traditionally monopolized by electrical steels. A variety of grain-oriented silicon-iron and amorphous magnetic materials have been under investigation. ... -
Uniaxial in-plane magnetic anisotropy in silicon-iron films prepared using vacuum coating plant (VCP)
Köçkar, Hakan; Meydan, Turgut (E D P Sciences, 2005)The novel VCP system is a mobile physical deposition method to deposit metallic/magnetic films using various source materials including powder, lump, pre-alloyed ingots and wires. The VCP system consists of a large deposition ...
