Investigations of reticulated porous alumina foam ceramics based on different coating techniques with the aid of μCT and statistical characteristics

The mechanical properties depend strongly on the achieved structure of the filter and especially on the distribution of the strut thickness in the inner volume side of the filter. A centrifuging technique with a pressure supported dipping as well as optimum processing parameters of the spraying step led to improved mechanical properties as well as homogenous macro-structures.