Fraunhofer Center HTL develops inorganic and carbon-based foams for various applications. Compared to dense materials, foams are characterized by a high porosity, which typically exceeds 50 vol.-% and can be either open or closed. The high porosity and low density result in a unique property profile, which is characterized by:
- high specific surface area
- high permeability for fluids
- low thermal mass
- thermal and acoustic insulation properties
- high thermal cycling resistance
- high weight-specific strength and stiffness
At the same time, ceramic foams usually have high thermal and chemical resistance, as well as high hardness and abrasion resistance compared to fiber-based insulation materials. This qualifies inorganic foams for applications such as thermal and acoustic insulation components, filters, kiln furniture, lightweight construction or bone substitute materials.