Thin-walled OCMC parts can substitute metallic components very successfully in a number of applications where thermal loading and cycling as well as long term stability are the main issues for the choice of the suitable materials. Due to distinctly higher costs for OCMC parts the substitution of metallic parts is driven by measurable technical advantages like higher thermal stability, better behaviour under thermal cycling as well as distinctly longer life times of such components. Examples are burners, sintering aids, furnace equipment (hot zone) and hot-gas butterfly. 

The OCMC parts reported here have been fabricated by using woven fiber materials like Nextel 610 that can be formed into the desired shape by using adjusted powder slurries. These slurries contain beside oxidic ceramic powders an inorganic binder which is derived by sol-gel precursors. The precursors exhibit supramolecular characteristics that allow adjusting the composition and the application conditions to the intended part fabrication as well. OCMC parts fabricated in this way show superior damage tolerance.

This paper covers the basics of the part fabrication by using the mentioned precursors and reports on the long-term behaviour of OCMC parts derived from this process.

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