The Effects of Structural, Thermal, and Magnetic Properties of Hexylbenzene-Doped MgB2 Superconductor
| Autor: | Selçuk Aktürk, Ali Gencer, Erhan Aksu, Hasan Ağıl |
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| Přispěvatelé: | MÜ, Fen Fakültesi, Fizik Bölümü, Aktürk, Selçuk, Hakkari Üniversitesi, Mühendislik Fakültesi, Malzeme Bilimi ve Mühendisliği Bölümü, 0-Belirlenecek |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Exothermic reaction Diffraction Superconductivity Materials science Flux pinning Carbon Addition Doping Mgb2 Bulk Analytical chemistry Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Nuclear magnetic resonance Differential scanning calorimetry Condensed Matter::Superconductivity Phase (matter) Naturel Sciences 0103 physical sciences Content (measure theory) Flux Pinning 010306 general physics |
| Popis: | WOS: 000403590300005 The effects of the amount of hexylbenzene additive (C12H18) on the structural, thermal, and magnetic properties of MgB2 superconductor are examined in this study. Pure and hexylbenzene-doped MgB2 bulk samples were produced with in situ solid-state reaction method. X-ray diffraction patterns of MgB2 doped with MgB2 and hexylbenzene at different ratios were determined to have MgB2 as the main phase and consisted of a small amount of MgO. Pure and different ratios of hexylbenzene-doped Mg and B starting powders were heat-treated by a differential scanning calorimeter between room temperature and 800 A degrees C. It was determined from the differential scanning calorimetry curves obtained that the first exothermic peak pointed the MgB2 phase emerging with a solid-solid (Mg-B) reaction, and this temperature shifted towards the low temperatures as the hexylbenzene addition rates increased. It was observed that there was dependency to the applied field in all samples from the ac susceptibility measurements as a function of the temperature in pure and hexylbenzene-doped MgB2 superconductor materials, and shift towards the lower temperatures in T (c), superconducting transition temperature, with increasing content. It was observed that the changes occurred in in-phase ( and out-off-phase () components of ac susceptibility both weakened the MgB2 phase structure of hexylbenzene content and, as a result of this, led to changes in the pinning mechanism. Research Fund of Hakkari University, Hakkari, Turkey [MF2014BAP2]; Republic of Turkey, Ministry of DevelopmentTurkiye Cumhuriyeti Kalkinma Bakanligi [2010K120520] This work was supported by the Research Fund of Hakkari University, Hakkari, Turkey, under grant contract no. MF2014BAP2, and by the Republic of Turkey, Ministry of Development, under the project number 2010K120520. |
| Databáze: | OpenAIRE |
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