Porosity properties of porous ceramic substrates added with zinc and magnesium material

TL;DR

This study investigates how adding zinc and magnesium compounds affects the porosity, permeability, and water absorption of ceramic substrates made with mullite and zircon, using a co-precipitation method.

Contribution

It introduces a method to modify ceramic porosity by adding zinc and magnesium compounds, highlighting zinc's significant impact on porosity control.

Findings

Zinc addition significantly increases porosity density.

Porosity can be controlled by varying zinc and magnesium content.

Permeability and water absorption correlate with porosity levels.

Abstract

Ceramic based materials covered with a mixture of mullite and zircon on the top, strengthened by the addition of zinc and magnesium compounds at different rates (37 % and 50 %) and made by a co-precipitation method are studied. The thermally treated and shaped materials prepared in the shape of cylindrical samples were modified to obtain different porosities. The addition of zinc to the ceramic based material leads to a significant increase and control of the density of porosity compared to the addition of magnesium. The porosity of all the materials was characterized. The permeability characteristics and the ability for all the pellets to absorb water until the saturation were also studied as a function of the porosity.