Cement Composites Based on Graphite / MnFe2O4 Spinel Ferrite Nanoparticles for Electromagnetic Interference Shielding and Microwave Absorption Application
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F23%3A63573820" target="_blank" >RIV/70883521:28610/23:63573820 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Cement Composites Based on Graphite / MnFe2O4 Spinel Ferrite Nanoparticles for Electromagnetic Interference Shielding and Microwave Absorption Application
Popis výsledku v původním jazyce
The increasing use of electronic devices in infrastructure projects has led to a growing electromagnetic interference (EMI) in the surroundings posing risks to sensitive electronic gadgets, communication systems and human health. Cement-based materials are commonly used in infrastructure due to their mechanical properties and durability but poor EMI shielding properties. Therefore, there is an urgent need to develop efficient EMI shielding materials for cement-based applications. In this study, the electromagnetic absorption performance of graphite-cement composite (GCC) and MnFe2O4 nanoparticles-cement nanocomposite (MFCC) were investigated in the X-band frequency (8.2-12.4 GHz) using the waveguide method. The results indicate that the graphite and MnFe2O4 nanoparticles incorporated cement-based composites exhibited efficient electromagnetic absorplion perfmmance in the X-band frequency. The MFCC achieved the minimum reflection loss (RLmin) value of -44 dB at 11.7 GHz and relative bandwidth of 1.3 GHz at -1 O dB. The study's overall findings showed the possibility for conductive or magnetic fillers to be added to cement composites for etlicient electromagnetic wave absorption performance, which has implications for applications in areas like EMI shielding technologies.
Název v anglickém jazyce
Cement Composites Based on Graphite / MnFe2O4 Spinel Ferrite Nanoparticles for Electromagnetic Interference Shielding and Microwave Absorption Application
Popis výsledku anglicky
The increasing use of electronic devices in infrastructure projects has led to a growing electromagnetic interference (EMI) in the surroundings posing risks to sensitive electronic gadgets, communication systems and human health. Cement-based materials are commonly used in infrastructure due to their mechanical properties and durability but poor EMI shielding properties. Therefore, there is an urgent need to develop efficient EMI shielding materials for cement-based applications. In this study, the electromagnetic absorption performance of graphite-cement composite (GCC) and MnFe2O4 nanoparticles-cement nanocomposite (MFCC) were investigated in the X-band frequency (8.2-12.4 GHz) using the waveguide method. The results indicate that the graphite and MnFe2O4 nanoparticles incorporated cement-based composites exhibited efficient electromagnetic absorplion perfmmance in the X-band frequency. The MFCC achieved the minimum reflection loss (RLmin) value of -44 dB at 11.7 GHz and relative bandwidth of 1.3 GHz at -1 O dB. The study's overall findings showed the possibility for conductive or magnetic fillers to be added to cement composites for etlicient electromagnetic wave absorption performance, which has implications for applications in areas like EMI shielding technologies.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
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OECD FORD obor
21001 - Nano-materials (production and properties)
Návaznosti výsledku
Projekt
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Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů