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Functionalization of open-celled foams by homogeneous slurry based coatings

  • Daniela Boettge (a1), Gisela Standke (a1), Alexander Fuessel (a1) and Jörg Adler (a1)

Abstract

A new technology to coat open-celled foams homogeneously by using a vertical centrifuge and shear-thinning slurries is presented. The technology is exemplified by a complex multilayer-coated foam for catalytic applications (Fig. 3). Furthermore, a new calculation model for the estimation of coating thickness and for quality assessment is introduced and proved by comparing the calculated and experimental data. Based on these results, various material combinations are shown, e.g., layers made of rough particles, zeolites, activated carbon, γ-Al2O3, perovskites, mullite, and yttria–alumina–garnet on SiC–, Al2O3–, or cordierite foams. Theses “functionalized foams” can be used for a wide variety of practical applications, e.g., as adsorbents and catalysts in environmental engineering, as preforms for metal matrix composites, and for special purpose applications that require corrosion and oxidation resistance.

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Corresponding author

a)Address all correspondence to this author. e-mail: daniela.boettge@ikts.fraunhofer.de

References

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Functionalization of open-celled foams by homogeneous slurry based coatings

  • Daniela Boettge (a1), Gisela Standke (a1), Alexander Fuessel (a1) and Jörg Adler (a1)

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