Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Katarzyna Jasiak"'
Publikováno v:
Journal of Materials Research and Technology, Vol 28, Iss , Pp 856-864 (2024)
One of the most important factor affecting properties of TWIP steels is the heat generated from plastic work during deformation. As the significant temperature rise can lead to a reduction or cessation of the main deformation mechanism – twinning.
Externí odkaz:
https://doaj.org/article/215f4adfdebc4f78893091381488ba50
Autor:
Magdalena Barbara Jabłońska, Katarzyna Jasiak, Karolina Kowalczyk, Iwona Bednarczyk, Mateusz Skwarski, Marek Tkocz, Zbigniew Gronostajski
Publikováno v:
Materials Science-Poland. 40:1-11
In this paper, the heat generated during deformation under the static testing of high-manganese TWIP steel with addition of niobium was determined. The research combined the interaction of heat generated during deformation, mechanical properties, har
Autor:
Magdalena Barbara Jabłońska, Katarzyna Jasiak, Karolina Kowalczyk, Mateusz Skwarski, Kinga Rodak, Zbigniew Gronostajski
Publikováno v:
International Journal of Material Forming. 16
The TWIP (Twinning Induced Plasticity) steels are one of the most promising materials in reducing the weight of vehicles. Despite a lot of research on TWIP steel, there are some issues that are not explained enough. Due to the future use of TWIP stee
Autor:
Filip Lewandowski, Jacek Ziemba, Katarzyna Jasiak, Marcin Rychlik, Marek Hawryluk, Łukasz Dudkiewicz
Publikováno v:
Materials Science-Poland, Vol 39, Iss 2, Pp 227-239 (2021)
The study concerns a comprehensive analysis of a multistage hot-die forging on hammers, in order to produce a yoke-type forging, used as a component of excavator power transmission systems. The investigations were conducted with the aim to analyze an
Publikováno v:
Catalysis Letters. 147:1567-1573
An effective direct method for preparing of cyclic carbonates from CO2 and olefins in the presence of tert-butyl hydroperoxide as an oxidant was provided. The first stage, the epoxidation of olefins, was carried out using MoO2(acac)2 as a catalyst (1
Publikováno v:
Journal of Chemical Technology & Biotechnology. 91:2827-2833
BACKGROUND The use of CO2 as a raw material to synthesize cyclic carbonates has attracted much attention in recent years. Ionic liquids (ILs) due to their unique properties are often used as effective catalysts for the reaction between CO2 and epoxid
Publikováno v:
Catalysis Letters. 146:893-901
A catalyst system for the efficient two-step coupling of CO2 and styrene to styrene carbonate was developed. Gold nanoparticles immobilized on multi-walled carbon nanotubes (Au/CNT) of 6 nm in diameter were used as a catalyst for the epoxidation step
Publikováno v:
Applied Catalysis A: General. 488:96-102
Quaternary ammonium chlorides bound to multi-walled carbon nanotubes as a catalyst for coupling of CO 2 and epoxides to produce cyclic carbonates were explored. Reaction variables such as the epoxide structure, the length of alkyl substituents in the
Publikováno v:
Applied Catalysis A: General. 482:266-274
A highly efficient method for the synthesis of cyclic carbonates from carbon dioxide and epoxides in the presence of polymer-supported quaternary onium salts (PS-Q + X − ) and aqueous solution of metal salts under mild conditions, is described. In
Autor:
Mateusz Reczek, Katarzyna Jasiak, Marlena Zajaczkowska, Bartłomiej Helman, Monika Talarowska, Aleksandra Piątek
Publikováno v:
Medical Science and Technology. 55:41-47