Thermal behaviour of clay ceramics obtained by Spark Plasma Sintering: is fractal geometry a new possible road to design porous structures?

Roberta Licheri;Ludovica Casnedi;Barbara Lasio;Paola Meloni;Giorgio Pia
2018-01-01

Abstract

Porous clay ceramics represent an important class of construction materials. Their properties are strongly conditioned by microstructure features. In particular, a special attention has to be paid to porosity (pore fraction, pore shape, pore size, pore size distribution and topology distribution). In this work, thermal behaviour of porous ceramics has been studied comparing different modelling procedure. Fractal modelling, proposed in this paper, proves to be most reliable in predicting thermal behaviour of porous ceramics. For this reason, a design procedure for obtaining porous structures with specific thermal properties has been illustrated.
2018
Clays; Design modelling; Porosity; Thermal conductivity; Electronic, Optical and Magnetic Materials; Ceramics and Composites; Process Chemistry and Technology; Surfaces, Coatings and Films; Materials Chemistry2506 Metals and Alloys
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