Polymer derived ceramic materials from Si,B and MoSiB filler-loaded perhydropolysilazane precursor for oxidation protection |
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| Authors: | Iryna Smokovych Manja Krüger Michael Scheffler |
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| Affiliation: | 1. Otto-von-Guericke University Magdeburg, Institute for Materials and Joining Technology, P.O.Box 4120, D-39016 Magdeburg, Germany;2. Forschungszentrum Jülich GmbH, Institute for Energy and Climate Research, Microstructure and Properties of Materials (IEK-2), Jülich, 52428, Germany |
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| Abstract: | Silica-based coating systems were developed using polymer derived ceramics (PDCs) technology. Ceramic composites on the base of a SiO2 and SiNO matrix and homogeneously distributed Mo5SiB2, SiB6, Si and B fillers were manufactured. The coating systems have low porosity and provide a high oxidation resistance up to 100 h at 800 °C and 1100 °C in air. The influence of temperature and atmosphere of pyrolysis on the polymer precursor, the volume fraction of filler materials on the chemical composition of compacts as well as their high-temperature oxidation protection was investigated. |
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| Keywords: | Corresponding author Polymer derived ceramics Preceramic polymers Perhydridopolysilazane Mo-Si-B based alloys Oxidation barrier coatings |
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