Material offers total porosities of up to 80%

Haldenwanger HalFoam is foaming technology which create a porous surface for aluminium oxide (alumina) and fused silica base materials and offer total porosities of up to 80%. HalFoam Alumina, suitable for use within kilns, performs at temperatures up to 1,700ºC, while HalFoam Fused Silica has demonstrated thermal insulation properties of between 500 and 1,000ºC.

Michael Rozumek, R&D Director for the Haldenwanger products business, Morgan Advanced Materials said: “Over the past two years, Morgan has made a considerable R&D investment into our porous materials portfolio. Our porous extruded products, with porosities ranging from 5% up to around 40%, can be used in a multitude of high-temperature applications where thermal shock is of particular concern. The introduction of the HalFoam products further extends our capabilities, offering up to 80%porosity and enhanced protection for surfaces in environments which experience rapid temperature change.”