CENTRO DE TECNOLOGIA DE RECURSOS MINERALES Y CERAMICA
Unidad Ejecutora - UE
Application of the Ergun´s equation in porous ceramic based on CaO-stabilized ZrO2
YESICA BRUNI; LILIANA GARRIDO; ESTEBAN AGLIETTI
ELSEVIER SCIENCE B. V.
Año: 2012 p. 418 - 424
The study of the permeability in porous ceramics with potential application as filters is essential because this parameter includes a number of processing variables such as porosity and pore size of great importance in the development of porous media. The knowledge of the relationship between permeability and these variables, provide a better criterion to determine the process variables that result in an optimization of the permeability. The optimization of this parameter is a basic requirement for an adequate operation of the ceramic as a filter material. In this study, the permeability of porous ceramic prepared from different compositions of the mixture of ZrO2 and a high alumina cement with 30 wt% CaO and sintered at 1400 ° C was experimental and theoretically evaluated. Theoretical evaluation of permeablity was performed using the Ergun´s equation, which describes the permeability constant as a funtion of the porosity and mean pore size of the porous material