Ceramic Porous Materials

Custom coorstek porous ceramics can be tailored from 0 1 100 µm with precision tolerances and a variety of ceramic material options.

Ceramic porous materials.

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. On the other hand some porous materials of conductive ceramics like zirconia and silicon carbide have been utilized in heat exchangers and heaters 13. In light of the differences among their materials there are several types of porous ceramics. They withstand chemical erosion that occurs in other materials subjected to acidic or caustic environments.

Porous ceramics are often used for chemical filtration and fluid separation. Because of the uniform color of material in unglazed porcelain tile small chips may not be as noticeable as they would be on a piece of ceramic tile. Disadvantages of using porcelain tile. 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. Combining tightly toleranced pores with unique ceramic material properties enables applications not feasible before. And ocordierite 25 ceramic foam is an important part of porous ceramics and the open. In alkaline solutions porous ceramics are resistant up to ph9.

As is known from figure 1 the representative processes for making macroporous ceramics are 1 partial sintering 2 sacrificial fugitives 3 replica templates and 4 direct foaming. Porous ceramics are categorized as those ceramics having high percentage porosity between 20 and 95. A ceramic material is an inorganic non metallic often crystalline oxide nitride or carbide material. Porous ceramic materials the objective here is not to carry out an extensive revision of the fracture of brittle porous materials but to present results which serve as a basis to the authors.

Porous ceramics can replace metal plastic or fiber based components providing equal or higher levels of performance and extending the useful component life under harsh conditions. It is also resistant to organic solvents. Porous ceramics are resistant to most acids except for hydrofluoric acid and phosphoric acid.