Ceramic Porous Material

In alkaline solutions porous ceramics are resistant up to ph9.

Ceramic porous material.

They withstand chemical erosion that occurs in other materials subjected to acidic or caustic environments. Porous ceramics are resistant to most acids except for hydrofluoric acid and phosphoric acid. Combining tightly toleranced pores with unique ceramic material properties enables applications not feasible before. A ceramic material is an inorganic non metallic often crystalline oxide nitride or carbide material.

Some elements such as carbon or silicon may be considered ceramics ceramic materials are brittle hard strong in compression and weak in shearing and tension. Porous ceramics are often used for chemical filtration and fluid separation. These materials composed of at least two phases like solid ceramic phase and the gas filled porous phase the gas content of these pores usually regulates itself to the environment as an exchange of gas with the environment is possible through pore channels. Ceramic foam is an important part of porous ceramics and the open cell type of ceramic foam which is a new type of highly porous ceramics has a three dimensional reticulated structure with connective pores resulting in great specific surface area high fluid contact efficiency and a small loss of fluid pressure 26 27.

Porous ceramics are categorized as those ceramics having high percentage porosity between 20 and 95. Up to 1000c for porous ceramic limited only by sealants gaskets and or hardware materials. Uniquely porous these ceramic materials contain open cell structures that allow the free flow of liquid or gas.