Search Results - "Morawski, Andrzej"
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Effect of Pb addition on microstructure, transport properties, and the critical current density in a polycrystalline FeSe0.5Te0.5
Published in Applied physics. A, Materials science & processing (01-06-2022)“…We have investigated the effects of lead (Pb) additions ( x ) up to 40 wt% ( x = 0–0.4) on the structure, electrical properties, and magnetic properties of…”
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Cometal Addition Effect on Superconducting Properties and Granular Behaviours of Polycrystalline FeSe0.5Te0.5
Published in Materials (05-04-2023)“…The enhanced performance of superconducting FeSe0.5Te0.5 materials with added micro-sized Pb and Sn particles is presented. A series of Pb- and Sn-added…”
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High Critical Current Density in the Textured Nanofiber Structure in Multifilament MgB2 Wires Made by the Powder-In-Tube (PIT) Technique
Published in Materials (05-08-2022)“…We show that the structure of multifilament MgB2 wires made by the powder-in-tube (PIT) method can be texturized by annealing the structure under high…”
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High-Pressure Synthesis and the Enhancement of the Superconducting Properties of FeSe0.5Te0.5
Published in Materials (30-07-2023)“…A series of FeSe0.5Te0.5 bulk samples have been prepared using the high gas pressure and high-temperature synthesis (HP-HTS) method to optimize the growth…”
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High Gas Pressure and High-Temperature Synthesis (HP-HTS) Technique and Its Impact on Iron-Based Superconductors
Published in Crystals (Basel) (01-10-2023)“…The high-pressure growth technique generally plays an important role in the improvement of sample quality and the enhancement of various physical and magnetic…”
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Effect of Heat Treatments under High Isostatic Pressure on the Transport Critical Current Density at 4.2 K and 20 K in Doped and Undoped MgB2 Wires
Published in Materials (08-09-2021)“…Annealing undoped MgB2 wires under high isostatic pressure (HIP) increases transport critical current density (Jtc) by 10% at 4.2 K in range magnetic fields…”
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Superior critical current density obtained in MgB2 bulks through low-cost carbon-encapsulated boron powder
Published in Scripta materialia (15-07-2015)“…The unavailability of high quality precursor is encouraging researchers to seek effective ways to fabricate magnesium diboride (MgB2) wire. Herein,…”
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Recent progress in MgB2 superconducting joint technology
Published in Journal of magnesium and alloys (01-07-2023)“…Magnesium diboride (MgB2) magnets have the potential to be the next-generation liquid-helium-free magnet for magnetic resonance imaging (MRI) application due…”
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Influence of Amorphous Boron Grain Size, High Isostatic Pressure, Annealing Temperature, and Filling Density of Unreacted Material on Structure, Critical Parameters, n-Value, and Engineering Critical Current Density in MgB2 Wires
Published in Materials (28-06-2021)“…Our results show that a lower density of unreacted Mg + B material during an Mg solid-state synthesis reaction leads to a significant reduction in the quantity…”
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Interplay between cold densification and malic acid addition (C4H6O5) for the fabrication of near-isotropic MgB2 conductors for magnet application
Published in Journal of magnesium and alloys (01-06-2020)“…The effect of cold high pressure densification (CHPD) on anisotropy of the critical current density (Jc) in « in situ » single core binary and alloyed MgB2…”
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The new resistance jump: The detection of damage in Nb barrier in MgB2 wires
Published in Materials letters (01-12-2015)“…We present a new method for detecting damage to Nb barriers in MgB2 wires by using a four-contact probe. The transport measurements and scanning electron…”
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High-pressure effect on grain boundary wetting in aluminium bicrystals
Published in International journal of materials research (03-02-2022)“…The effect of pressure and misorientation on grain boundary wetting in aluminium bicrystals has been investigated. The grain boundaries were of [100]…”
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The influence of the HIP process on the microstructure, critical temperature and critical current density of double-doped (with Dy2O3 + C, and Tb2O3 + C) MgB2 bulk compounds
Published in High pressure research (02-01-2024)“…We present the results of the irreversibility field (B irr ), critical temperature (T c ), and magnetic critical current density (J cm ) for cylindrical…”
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Impact of rare earth oxides metal (Dy, Tb, Er, Eu, Sm) admixtures on the structure, morphology, pinning centers and critical parameters of MgB2 materials manufactured by ambient pressure sintering and hot isostatic pressure processes
Published in Ceramics international (15-11-2023)“…In our paper, we present the results of the structural, morphological and critical parameters of MgB2 cylindrical materials doped with Dy2O3, Tb2O3, Er2O3,…”
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Effect of impurity phase and high-pressure synthesis on the superconducting properties of CaKFe4As4
Published in The Journal of physics and chemistry of solids (01-07-2024)“…AeAFe4As4 (Ae = Ca, A = K; 1144) having a transition temperature of 35 K is a stoichiometric family of iron-based superconductors (FBS). Here, we present a…”
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Influence of annealing temperature and isostatic pressure on microstructure and superconducting properties of isotopic Mg11B2 wires fabricated by internal Mg diffusion method
Published in Journal of alloys and compounds (05-02-2023)“…Here, we report superconducting Mg11B2 wires made by using the internal Mg diffusion technique with isotopic amorphous nano boron (11B) as the precursor…”
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Enhancement of Superconducting Properties of Polycrystalline CaKFe 4 As 4 by High-Pressure Growth
Published in IEEE transactions on applied superconductivity (01-05-2024)Get full text
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Enhancement of Superconducting Properties of Polycrystalline CaKFe4As4 by High-Pressure Growth
Published in IEEE transactions on applied superconductivity (01-05-2024)“…High-pressure growth is a unique method to improve the sample quality and size. Here, we have used the high gas pressure and high-temperature synthesis…”
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