Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Karel Saksl"'
Autor:
Dagmara Varcholová, Katarína Kušnírová, Lenka Oroszová, Jens Möllmer, Marcus Lange, Katarína Gáborová, Branislav Buľko, Peter Demeter, Karel Saksl
Publikováno v:
Materials, Vol 17, Iss 12, p 2897 (2024)
This study presents the design, preparation, and characterization of thirty new medium-entropy alloys (MEAs) in three systems: Al-Ti-Nb-Zr, Al-Ti-Nb-V, and Al-Ti-Nb-Hf. The hardness of the alloys ranged from 320 to 800 HV0.3. Among the alloys studied
Externí odkaz:
https://doaj.org/article/9afb4e1e6da94fcab6d1683593db8624
Autor:
František Mihok, Gabriela Hricková, Viktor Puchý, Juraj Szabó, Beáta Ballóková, Róbert Džunda, Karel Saksl
Publikováno v:
Inorganics, Vol 12, Iss 4, p 103 (2024)
Material selection for thermoelectric modules and generators presents a considerable challenge. In commercially available thermoelectric generators, alloys with a high percentage of doping element are used to achieve different semiconductor polarity.
Externí odkaz:
https://doaj.org/article/cdf201ac47de44c5a815355f651309e7
Autor:
Karel Saksl, Miloš Matvija, Martin Fujda, Beáta Ballóková, Dagmara Varcholová, Jakub Kubaško, Jens Möllmer, Marcus Lange, Mária Podobová
Publikováno v:
Materials, Vol 17, Iss 8, p 1732 (2024)
In this study, we investigate the effect of small amounts of zirconium alloying the medium-entropy alloy (TiVNb)85Cr15, a promising material for hydrogen storage. Alloys with 1, 4, and 7 at.% of Zr were prepared by arc melting and found to be multiph
Externí odkaz:
https://doaj.org/article/69b71fe35bb94588adea1e159147d6d1
Autor:
Gabriela Hrickova, Frantisek Mihok, Zuzana Molcanova, Beata Ballokova, Wanda Mamrilla, Robert Dzunda, Peter Lukacs, Alena Pietrikova, Karel Saksl
Publikováno v:
Inorganics, Vol 12, Iss 4, p 98 (2024)
Thermoelectric materials are capable of generating electrical energy in response to a temperature gradient. Non-renewable energy resources are depleting, so the development of renewable energy sources that are environmentally sustainable is essential
Externí odkaz:
https://doaj.org/article/257c09c38f2542c281b78ea2aed71576
Publikováno v:
Engineering Proceedings, Vol 64, Iss 1, p 9 (2024)
Hydrogen is a key element in the changing energy sector and presents an accessible alternative to conventional fossil fuel sources. In this work, a system of ten high-entropy alloys was prepared based on the Hume-Rothery rules. One of the biggest adv
Externí odkaz:
https://doaj.org/article/fe73fe72c5ab4dc2afbc5ba5bc761f0c
Autor:
Lenka Oroszová, Dávid Csík, Gabriela Baranová, Gábor Bortel, Róbert Džunda, László Temleitner, Mária Hagarová, Ben Breitung, Karel Saksl
Publikováno v:
Crystals, Vol 14, Iss 3, p 218 (2024)
In the realm of advanced anode materials for lithium-ion batteries, this study explores the electrochemical performance of a high-entropy oxide (HEO) with a unique spinel structure. The equiatomic composition of CrMnFeCoCu was synthesized and subject
Externí odkaz:
https://doaj.org/article/40272602c5f84068b87073bb12453213
The Influence of Manganese Addition on the Properties of Biodegradable Zinc-Manganese-Calcium Alloys
Autor:
Wanda Mamrilla, Zuzana Molčanová, Beáta Ballóková, Miroslav Džupon, Róbert Džunda, Dávid Csík, Štefan Michalik, Maksym Lisnichuk, Karel Saksl
Publikováno v:
Materials, Vol 16, Iss 13, p 4655 (2023)
This study focuses on the preparation and characterization of zinc-based alloys containing magnesium, calcium, and manganese. The alloys were prepared by the melting of pure elements, casting them into graphite molds, and thermo-mechanically treating
Externí odkaz:
https://doaj.org/article/124b41ad0d1349dba3689ff994cdaa66
Autor:
Štefan Michalik, Zuzana Molčanová, Michaela Šulíková, Katarína Kušnírová, Pál Jóvári, Jacques Darpentigny, Karel Saksl
Publikováno v:
Materials, Vol 16, Iss 6, p 2313 (2023)
The Mg-Zn-Ca system has previously been proposed as the most suitable biodegradable candidate for biomedical applications. In this work, a series of ribbon specimens was fabricated using a melt-spinning technique to explore the glass-forming ability
Externí odkaz:
https://doaj.org/article/56db240365b44b14885def5068d905e9
Autor:
Lucia Balejčíková, Karel Saksl, Jozef Kováč, Anne Martel, Vasil M. Garamus, Mikhail V. Avdeev, Viktor I. Petrenko, László Almásy, Peter Kopčanský
Publikováno v:
Molecules, Vol 26, Iss 22, p 6960 (2021)
Ferritin, a spherically shaped protein complex, is responsible for iron storage in bacteria, plants, animals, and humans. Various ferritin iron core compositions in organisms are associated with specific living requirements, health state, and differe
Externí odkaz:
https://doaj.org/article/14fd86fc1fa74d149209f302da826dc5
Autor:
Tomáš Brestovič, Natália Jasminská, Marián Lázár, Karel Saksl, Ľubica Bednárová, Michaela Šulíková, Mária Čarnogurská
Publikováno v:
Advances in Sciences and Technology, Vol 11, Iss 4, Pp 103-110 (2017)
This article discusses the measurement of hydrogen storage capacity in Ca72Mg28 alloy that has been produced by melt spinning. The alloy has an amorphous structure in which there is an assumption of hydrogen storage of acceptable concentration. The r
Externí odkaz:
https://doaj.org/article/61e6335668bb4b7aba4e46828e74e644