The effect of composition on the dielectric properties of alkali activated materials: A next generation dielectric ceramic

Di Mare, Michael et Ouellet-Plamondon, Claudiane. 2022. « The effect of composition on the dielectric properties of alkali activated materials: A next generation dielectric ceramic ». Materials Today Communications, vol. 32.
Compte des citations dans Scopus : 5.

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Résumé

Alkali activated materials have been modified to achieve dielectric constants over 109: the highest dielectric constants ever reported for a ceramic-like material. This is a one-million-fold improvement over barium titanate and strontium titanate dielectric ceramics. It is four orders of magnitude greater than calcium copper titanate: the highest performing dielectric ceramic. Alkali activated materials are a sustainable ceramic-like material, synthesized from byproduct fly ash without the need for calcination or sintering. This exceptional dielectric constant has not been previously reported due to the strong dependence on the elemental composition and activator type. A multivariable compositional optimization was conducted with broadband dielectric spectroscopy to maximize the dielectric performance. With this alkali activated material, the next generation of ceramic capacitors will dramatically improve in affordability, sustainability, and energy storage capacity.

Type de document:	Article publié dans une revue, révisé par les pairs
Professeur:	Professeur Ouellet-Plamondon, Claudiane
Affiliation:	Génie de la construction
Date de dépôt:	24 août 2022 18:35
Dernière modification:	14 nov. 2022 20:48
URI:	https://espace2.etsmtl.ca/id/eprint/25096

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