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Abradable coating solutions improve safety while reducing fuel consumption and emissions in turbomachinery. Whether aviation or power generation gas turbines, steam turbines or turbochargers, we have abradable materials for your clearance control applications.

Abradable Materials for Clearance Control

Oerlikon Metco pioneered thermal sprayed gas turbine abradable coatings for the low pressure compressor more than a half century ago. Today, we design and produce abradable coatings for applications throughout gas turbine engines and other critical turbomachinery such as turbochargers and steam turbines.

Our composite abradable thermal spray powders are of the highest quality and consistency for long-lasting service. We also have a unique ability to test the abradable coatings we design using our in-house testing rig that closely simulates engine test conditions. Thus, we can prove rub results under varying conditions which helps qualify abradable solutions more rapidly and with higher confidence.

Solutions for Power Generation and Mechanical Drive Gas Turbines

Typical Applications

Our abradable materials are applied as clearance control coatings to industrial gas turbine compressors, improving compressor efficiency up to 5%. On the first stages of the turbine section, our ceramic abradable materials are applied to shroud seal segments to reduce overall clearances, thereby improving stage efficiency up to 2%.

Operational Benefits
  • Improves power output
  • Lowers fuel consumption
  • Reduces greenhouse gas emissions
  • Significantly reduces annual operating costs of large power generation turbines

Solutions for Steam Turbines

Typical Applications
  • Shaft seals
  • Balance piston seals
  • Steam flow path seals over shrouded rotor blades for Supercritical (SC) and Ultra Supercritical (USC) steam applications
Operational Benefits
  • Improves turbine efficiency
  • Reduces carbon dioxide emissions
  • Saves fuel
  • Reduces environmental costs


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