Self-Heating Potential of Geopolymer Metashale Mortars with Graphite Powder
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00366220" target="_blank" >RIV/68407700:21110/23:00366220 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.matpr.2023.05.257" target="_blank" >https://doi.org/10.1016/j.matpr.2023.05.257</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matpr.2023.05.257" target="_blank" >10.1016/j.matpr.2023.05.257</a>
Alternative languages
Result language
angličtina
Original language name
Self-Heating Potential of Geopolymer Metashale Mortars with Graphite Powder
Original language description
Geopolymers are eco-friendly materials with favorable material properties and, therefore, suitable candidates for optimization in terms of electrical properties which broadens their potential in self-heating, self-sensing, or energy harvesting applications. The effectivity of self-heating function crucially depends on the presence of a sufficient number of conductive paths in a non-conductive material matrix corelating with the effective electrical conductivity of the material. The optimization of self-heating function, therefore, consists in appropriate dosing and homogenization of supplementing electrically conductive admixtures, as well as correct embedment of electrodes ensuring good contact with the material. The paper is focused on the design of multifunctional geopolymer mortar based on metashale precursor that was activated by a mix of potassium hydroxide and silicate. Electrical properties of the composite were optimized by graphite powder in the amount of 3 wt% and electrical experiments were performed using embedded copper grid electrodes. The material was characterized in terms of basic physical, mechanical, thermal, and electrical properties. The consecutive self-heating experiment was performed under the AC voltage of 130 V RMS with the initial power at the beginning of the measurement of 10 W. It was observed power increase of approximately 3 W and 25 °C rise of temperature during the 2 h lasting experiment.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Materialstoday: Proceedings Volume 81, Part 1
ISBN
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ISSN
2214-7853
e-ISSN
2214-7853
Number of pages
6
Pages from-to
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Publisher name
Elsevier Irland Ltd.
Place of publication
Dublin
Event location
Lisbon
Event date
Oct 26, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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