Polymer-derived microcellular SiOC foams with magnetic functionality
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SiOC microcellular ceramic foams possessing soft-ferromagnetic properties were produced from a pre-ceramic polymer, poly-methyl-methacrylate microbeads (PMMA) (used as sacrificial pore formers) and iron silicide micro-powders (as functional filler). The interactions between the matrix and the filler were studied as a function of the amount of powders introduced and the pyrolysis temperature. Magnetic and mechanical properties were also investigated.
KeywordsFoam Pyrolysis PMMA Fe3Si Ceramic Foam
This research was supported by EC, FP6 through MCRTN-CT-019601, “PolyCerNet”. Travel funding from the Protocol of Scientific and Technological Co-operation between Italy and Egypt (2004–2006), project No.13 NMat2 (New materials and ecologically sustainable technologies) titled “ Preparation and Properties of Nanocomposites SiON- and SiOC-Based Ceramic Materials” is gratefully acknowledged.
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