What is Porous Ceramics?

2024-12-17

(Porous Ceramics Produced by Wintrustek)

Porous ceramics are a group of highly reticulated ceramic materials that can take the form of a variety of structures, including foams, honeycombs, connected rods, fibers, hollow spheres, or interconnecting rods and fibers.

Porous ceramics are categorized as those with a high percentage of porosity, between 20% and 95%. These materials are composed of at least two phases, like the solid ceramic phase and the gas-filled porous phase. Due to the possibility of gas exchange with the environment through pore channels, the gas content of these pores often adapts to the environment. Closed pores may hold a gas composition that is independent of the surrounding atmosphere. Any ceramic body's porosity can be classified into many categories, including open (available from the outside) porosity and closed porosity. Open dead-end pores and open pore channels are two subtypes of open porosity. A more open porosity may be required to be permeable, as opposed to a closed porosity, or filters or membranes, such as thermal insulators, may be desired. The existence of porosity depends on the specific application.

The properties of porous ceramics can be greatly affected by changes in open and closed porosity, pore size distribution, and pore shape. Porous ceramics' structural characteristics, such as the degree of porosity, pore size, and form, determine their mechanical properties.

Properties