As composites of ceramic and metal materials, cermets act as intermediate materials that resolve thermal expansion mismatches in multiple layer, metallic-ceramic coating systems. They are the ideal solution to boost coating performance and life for applications involving severe thermal cycling.
Prevents early failure resulting from thermal cycling
A “cermet” is a blend of metal-oxide ceramic (cer) and metal (met) materials. It controls thermal expansion mismatch between the substrate and the functional coating, and is applied as an intermediate coating between the metallic bond coat and the ceramic top coat. Cermets were originally designed for turbine applications, such as thermal barriers and thick clearance control coatings. However, this class of materials can be useful in many applications where severe thermal cycling can cause premature failure of a simple two-layer coating system.
Your single-source material supplier
We supply a variety of metal / ceramic combinations for use with:
| Alumina- and zirconia-based top coat powders |
| Nickel-, aluminum-, and chromium-based bond coat powders |
We also supply the bond and top coat powder products, allowing you to obtain the entire coating system from a single, high-quality source.
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