Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Tomasz Czujko"'
Autor:
Daniel Gajda, Michał Babij, Andrzej Zaleski, Doğan Avci, Fırat Karaboga, Hakan Yetis, Ibrahim Belenli, Tomasz Czujko
Publikováno v:
Materials, Vol 17, Iss 6, p 1362 (2024)
Currently, MgB2 wires made by the powder-in-tube (PIT) method are most often used in the construction and design of superconducting devices. In this work, we investigated the impact of heat treatment under both low and high isostatic pressures on the
Externí odkaz:
https://doaj.org/article/9d41ce9812724b7885284cd6b7e7b755
Autor:
Anna Antolak-Dudka, Tomasz Czujko, Tomasz Durejko, Wojciech J. Stępniowski, Michał Ziętala, Justyna Łukasiewicz
Publikováno v:
Materials, Vol 17, Iss 5, p 1166 (2024)
In this paper, the influences of two post-heat treatments on the structural, mechanical and corrosion resistance properties of additively manufactured Ti6Al4V alloys were discussed in detail. The materials were produced using the laser engineering ne
Externí odkaz:
https://doaj.org/article/d326b0c71513496095761e00f0c3b55c
Publikováno v:
Materials, Vol 16, Iss 18, p 6157 (2023)
The use of a low annealing temperature during the production of coils made from superconducting materials is very important because it reduces the production costs. In this study, the morphology, transport critical-current density (Jc), irreversible
Externí odkaz:
https://doaj.org/article/cd07a57a25894001807eedc111627377
Autor:
Daniel Gajda, Andrzej J. Zaleski, Andrzej J. Morawski, Małgorzata Małecka, Lan Maria Tran, Matt Rindfleisch, Tomasz Durejko, Tomasz Czujko
Publikováno v:
Materials, Vol 15, Iss 15, p 5419 (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 isostatic pressure. Our results show that we obtained continuous fibers with a uniform diameter of
Externí odkaz:
https://doaj.org/article/63e573b5641e46d49f88cba247ff5bc9
Autor:
Daniel Gajda, Andrzej J. Zaleski, Andrzej J. Morawski, Malgorzata Małecka, Konstantin Nenkov, Matt Rindfleisch, Md Shahriar A. Hossain, Tomasz Czujko
Publikováno v:
Materials, Vol 14, Iss 18, p 5152 (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 from 4 T to 12 T and significantly increases Jtc by 25% in range magnetic fields from 2 T to
Externí odkaz:
https://doaj.org/article/7e3f9158114f4bf49770d7901aba281d
Autor:
Paweł Smoleń, Tomasz Czujko, Zenon Komorek, Dominik Grochala, Anna Rutkowska, Małgorzata Osiewicz-Powęzka
Publikováno v:
Materials, Vol 14, Iss 12, p 3325 (2021)
This paper investigates the effect of multiwalled carbon nanotubes on the mechanical and electrical properties of epoxy resins and epoxy composites. The research concerns multiwalled carbon nanotubes obtained by catalytic chemical vapor deposition, s
Externí odkaz:
https://doaj.org/article/acde857d25cb49c6b31169d4d77873b5
Autor:
Daniel Gajda, Andrzej J. Zaleski, Andrzej Morawski, Małgorzata Małecka, Mustafa Akdoğan, Firat Karaboğa, Doğan Avcı, Hakan Yetiş, Ibrahim Belenli, Tomasz Czujko
Publikováno v:
Materials, Vol 14, Iss 13, p 3600 (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 of the superconducting phase and lowers the homogeneity of the superconducting material. I
Externí odkaz:
https://doaj.org/article/5f3b245ed2264f478ff06762fef58f62
Autor:
Jan Dutkiewicz, Łukasz Rogal, Damian Kalita, Katarzyna Berent, Bogdan Antoszewski, Hubert Danielewski, Marek St. Węglowski, Magdalena Łazińska, Tomasz Durejko, Tomasz Czujko
Publikováno v:
Materials, Vol 13, Iss 21, p 5050 (2020)
The effect of using two different deposition systems on the microstructure and mechanical properties was studied in this paper. For this purpose, laser-engineered net shaping (LENS) and high-power CO2 laser deposition processes were applied to fabric
Externí odkaz:
https://doaj.org/article/027c45e4fc16476ca1961725e196a96b
Publikováno v:
Materials, Vol 13, Iss 20, p 4550 (2020)
Magnesium hydride, despite the decomposition temperature being incompatible with the operating temperature of a typical PEM cell, is still considered a prospective material for hydrogen storage. Hence, this paper presents new aspects of the influence
Externí odkaz:
https://doaj.org/article/049bc8bf8c5a4c399a50451a30c91f32
Publikováno v:
Materials, Vol 13, Iss 16, p 3471 (2020)
Nanostructured anodic oxide layers on an FeAl3 intermetallic alloy was prepared by two-step anodization in 20 wt.% H2SO4 at 0 °C. The obtained anodic oxide coating was subjected to phase and chemical composition analysis using XPS and XRD techniques
Externí odkaz:
https://doaj.org/article/1f04c090f46646ac8eb61f6b02463777