Zobrazeno 1 - 9 of 9 pro vyhledávání: '"Cezary Rapiejko"'
1
Akademický článek
Unlocking the Potential of Biomass Fly Ash: Exploring Its Application in Geopolymeric Materials and a Comparative Case Study of BFA-Based Geopolymeric Concrete against Conventional Concrete
Autor: Baturalp Yalcinkaya, Tomas Spirek, Milan Bousa, Petr Louda, Vojtěch Růžek, Cezary Rapiejko, Katarzyna Ewa Buczkowska
Publikováno v: Ceramics, Vol 6, Iss 3, Pp 1682-1704 (2023)
The production of conventional cement involves high energy consumption and the release of substantial amounts of carbon dioxide (CO2), exacerbating climate change. Additionally, the extraction of raw materials, such as limestone and clay, leads to ha
Externí odkaz: https://doaj.org/article/17747d7c65a444b6905f6fc060ced74b
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2
Akademický článek
Refinement of the Magnesium–Aluminium Alloy Microstructure with Zirconium
Autor: Cezary Rapiejko, Dominik Mikusek, Bartłomiej Januszewicz, Krzysztof J. Kubiak, Tadeusz Pacyniak
Publikováno v: Materials, Vol 15, Iss 24, p 8982 (2022)
The magnesium–aluminium alloy AZ91 was inoculated with zirconium to refine the microstructure. Six different concentrations of zirconium content were tested, ranging from 0.1 to 0.6 wt %, and compared to the baseline AZ91 alloy without modification
Externí odkaz: https://doaj.org/article/fff75d2a476244dc9f6d0ce82cf2932b
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3
Akademický článek
Effect of Degassing Parameters on Mechanical Properties of EN AC-46000 Gravity Die Castings
Autor: Grzegorz Gumienny, Bogusław Pisarek, Tomasz Szymczak, Jakub Gawroński, Paweł Just, Ryszard Władysiak, Cezary Rapiejko, Tadeusz Pacyniak
Publikováno v: Materials, Vol 15, Iss 23, p 8323 (2022)
The article is devoted to the optimization of the degassing parameters of the AlSi9Cu3(Fe) alloy. The alloy was degassed with a solid degasser (Ecosal) and nitrogen or argon. The variable parameters were time and type of degasser. The test castings w
Externí odkaz: https://doaj.org/article/858e9a5a2d264a11867e6c927a4e57b4
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4
Akademický článek
Determination of the Thermal Parameters of Geopolymers Modified with Iron Powder
Autor: Karol Prałat, Justyna Ciemnicka, Artur Koper, Michał Marek Szczypiński, Piotr Łoś, Van Vu Nguyen, Van Su Le, Cezary Rapiejko, Roberto Ercoli, Katarzyna Ewa Buczkowska
Publikováno v: Polymers, Vol 14, Iss 10, p 2009 (2022)
The paper presents the results of research concerning the influence of a metallic micromaterial on the thermal conductivity λ, specific heat Cp, and thermal diffusivity a of modified geopolymers. Iron oxide in the form of powder with an average gran
Externí odkaz: https://doaj.org/article/ae31409868814a989dd9a9e091c62604
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5
Akademický článek
Mechanical and Thermal Properties of Geopolymer Foams (GFs) Doped with By-Products of the Secondary Aluminum Industry
Autor: Roberto Ercoli, Dorota Laskowska, Van Vu Nguyen, Van Su Le, Petr Louda, Piotr Łoś, Justyna Ciemnicka, Karol Prałat, Alberto Renzulli, Eleonora Paris, Matteo Basilici, Cezary Rapiejko, Katarzyna Ewa Buczkowska
Publikováno v: Polymers, Vol 14, Iss 4, p 703 (2022)
The article deals with the investigation of geopolymer foams (GFs) synthesized using by-products coming from the (i) screening-, (iv) pyrolysis-, (iii) dust abatement- and (iv) fusion-processes of the secondary aluminum industry. Based on principles
Externí odkaz: https://doaj.org/article/606ce70a3e214a0db2a78c4642595f6f
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