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         Porous ceramics

         Ceramic tubes & pipes

         Custom ceramic shapes

         Porous ceramic filters

         Wearing & thermal shock

        Nano functional coatings

         Photo-catalytic porous ceramics

         Porous ceramic shapes

         Fine bubble diffusers

 

Some information about our porous ceramics:

  • Our porous ceramics are generally made of alumina, mullite, zirconia, fused silica and silicon carbide, although other types, for example, porous boron nitride, can also be prepared

  • Our porous ceramics are all non-fibrous, thus are harmless. We have several methods to control the interconnected porous structures. Until now, majority applications of the porous ceramics require large pore sizes ( mostly in the range of 20-40 microns) because these applications require low resistance flowing through of gasses or liquids.

  • Our nano-porous ceramics are made of alumina, zircon and Titania. In these nano-porous ceramics extremely small amount of functional chemical species such silver (or Cu) can be immobilised to have enhanced chemical functions. Strong photo-catalysis under visible light can be achieved on the nano-porous surfaces.

  • Nano porous ceramics can only be useful in thin forms (thin plates or coatings), say, thinner than 0.5mm. This is because nano-porous structure is extremely affinitive to external molecules, they have great tendency to be immobilised (anchored to the walls of the nano-pores) in the pores, the effects are that nano-pores are getting even smaller leading to blockage of the pores.

  • From our experience of many years practice, capability of processing ceramic shapes are more important than actual composition. This is because ceramics are brittle materials (with low toughness, K1c),precision machining of some shapes can be very difficult and costly. We have a net-shape forming technique for a number of porous ceramic materials.

 

 

 

 

 

 

New technology developments:

 Nano porous ceramic substrates with nano-pore surface structure, a unique miniature platform/biochip for chemical and bio-chemical immobilisation.