Advanced protection for lightweight metals

News Editor

Following the acquisition of leading Plasma Electrolytic Oxidation (PEO) provider Keronite, Curtiss-Wright Surface Technologies is delighted to offer an advanced surface treatment to the engineering community.

Longer-lasting components

PEO is an electrochemical surface treatment that uniquely improves the performance characteristics of light alloys. The electrolyte bathbased process extends the life of components for use in industries including aerospace, defence, semi-conductor manufacturing, Electric Vehicles and battery systems.

High performance

In contrast to traditional anodising treatments, PEO introduces plasma to fundamentally alter coating and performance qualities in stressful end-use applications. It delivers similar wear and performance to highweight materials such as carbide or steel, while being kinder to the environment.

Tailor the coating to your application

Keronite PEO treatments produce dense ceramic coatings that can be tailored to deliver different characteristics. These include:

  • Corrosion protection – exceeding 2,000 hours in salt spray testing
  • Wear resistance for improved component longevity
  • Thermal management qualities, tailored to specific component applications (0.5 -10 W/mK thermal conductivity)
  • Extreme hardness – up to 2000HV
  • Electrical insulation – dielectric breakdown performance exceeding 5 kV
  • Strain tolerance – Young’s Modulus values of around 30Gpa
  • Strong adhesion – the layer is formed from the substrate so layer adhesion is exceptionally good
  • Surface finish from 0.05 – 2 µm Ra
  • Coefficient of friction from 0.05 to 0.8

Clean technology, versatile dprocess, environmentally friendly no organic compounds, VoCs, strong acids or heavy metals are used in the Keronite PEO process. The uniformly-applied, plasma-resistant coatings can be customised for even the most demanding applications and severe service environments. Suitable for all alloys of aluminium, magnesium, and titanium composition as well as zirconium, tantalum, and niobium.