Detail publikačního výsledku

Metakaolin/carbon black geopolymer with enhanced electrical properties

MIZEROVÁ, C.; KUSÁK, I.; ROVNANÍK, P.; BAYER, P.

Originální název

Metakaolin/carbon black geopolymer with enhanced electrical properties

Anglický název

Metakaolin/carbon black geopolymer with enhanced electrical properties

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Alkali-activated binders represent a promising material for composites with self-sensing properties both for their lower environmental impact and ability to transfer the electric charge through ionic mobility. Metakaolin geopolymers with carbon black conductive admixture up to 4% were produced to test their electrical properties, mechanical properties and microstructure. Electrical capacitance, resistance and relative permittivity were determined via impedance spectroscopy analysis. Notable enhancement of all mentioned electrical parameters was registered from 2% carbon black content, especially at lower frequency range. Another carbon black addition was rather unreasonable due to only slight improvement in electrical properties but significant drop of compressive strength and unfavourable changes in pore volume and binder microstructure determined by mercury intrusion porosimetry and electron microscope.

Anglický abstrakt

Alkali-activated binders represent a promising material for composites with self-sensing properties both for their lower environmental impact and ability to transfer the electric charge through ionic mobility. Metakaolin geopolymers with carbon black conductive admixture up to 4% were produced to test their electrical properties, mechanical properties and microstructure. Electrical capacitance, resistance and relative permittivity were determined via impedance spectroscopy analysis. Notable enhancement of all mentioned electrical parameters was registered from 2% carbon black content, especially at lower frequency range. Another carbon black addition was rather unreasonable due to only slight improvement in electrical properties but significant drop of compressive strength and unfavourable changes in pore volume and binder microstructure determined by mercury intrusion porosimetry and electron microscope.

Klíčová slova

geopolymer; metakaolin; carbon black; electrical properties; mechanical properties

Klíčová slova v angličtině

geopolymer; metakaolin; carbon black; electrical properties; mechanical properties

Autoři

MIZEROVÁ, C.; KUSÁK, I.; ROVNANÍK, P.; BAYER, P.

Rok RIV

2020

Vydáno

20.06.2019

Nakladatel

IOP Publishing

Místo

United Kingdom

Kniha

25th International Conference and Meeting of Departments, CONSTRUMAT 2019

Edice

2019

ISSN

1757-8981

Periodikum

IOP conference series. Materials science and engineering

Svazek

549

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

7

Strany počet

7

URL

https://iopscience.iop.org/article/10.1088/1757-899X/549/1/012033

BibTex

@inproceedings{BUT157420,
  author="Cecílie {Mizerová} and Ivo {Kusák} and Pavel {Rovnaník} and Patrik {Bayer}",
  title="Metakaolin/carbon black geopolymer with enhanced electrical properties",
  booktitle="25th International Conference and Meeting of Departments, CONSTRUMAT 2019",
  year="2019",
  series="2019",
  journal="IOP conference series. Materials science and engineering",
  volume="549",
  number="1",
  pages="1--7",
  publisher="IOP Publishing",
  address="United Kingdom",
  doi="10.1088/1757-899X/549/1/012033",
  issn="1757-8981",
  url="https://iopscience.iop.org/article/10.1088/1757-899X/549/1/012033"
}