Ceramic Composite Coating

Ceramic Composite Coating refers to specialized surface layers, often multi-layered, applied to metallic or composite components via thermal spray (e.g., Plasma Spray, HVOF). These coatings are frequently based on Zirconia or Silicon Carbide and are engineered for two main purposes: Thermal Barrier Coatings (TBCs), providing critical heat insulation, and coatings offering extreme wear and abrasion resistance. They maintain integrity and protect the substrate from heat, oxidation, and chemical attack at temperatures where base metals would soften or melt (above 1000°C). Ceramic Composite Coatings are essential for components in gas turbines, diesel engine pistons, rocket nozzles, and high-speed cutting tools. Zeron Fastners supplies materials and coated products for high-performance systems.

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Ceramic Composite Coating

Ceramic Composite Coating Chemical Composition (Typical Thermal Barrier Coating)

Layer Composition
Top Coat Yttria-Stabilized Zirconia (YSZ)
Bond Coat NiCoCrAlY or NiCrAlY
Ceramic Phase Oxide or Silicon Carbide-based
Method Thermal Spray or CVD/PVD

Ceramic Composite Coating Mechanical Properties (Typical TBC)

Property Value (Typical)
Service Temperature Limit 1200°C – 1600°C
Thermal Conductivity Very Low (Excellent insulator)
Hardness High (Wear Resistance)
Erosion Resistance Good to Excellent

Ceramic Composite Coating Feature Products