CERAFIL®

Ceramic wire for windings, electric motors, transformers designed for temperatures of 500 °C

Product description

• CERAFIL®, a common thread with ceramic insulation for very high temperatures, is the result of many years of research. Our engineering team has succeeded in developing an innovative technology capable of laying a ceramic layer on a conductor wire with a very small diameter (from 0.07mm).
• This miniaturised high-temperature wire is designed for highly reliable windings and coils, as it can withstand thermal overloads (mechanical heating, short-circuits, thermal hazard locations, ...).
• Thanks to its exceptional qualities - small size, extremely light weight, resistance to extreme temperatures,CERAFIL® cable is used in numerous high-tech applications and research projects in high-risk sectors, such as the’aeronautics, l’aerospace, the nuclear sector. For example:
  • special windings in low-voltage motors or sensors and used in extreme conditions (+500 °C)
  • safety elements intervening in the event of a thermal accident
  • temperature measurement in confined spaces and under significant heat sources

Composition of CERAFIL® cable

• Conductor: Copper/Nickel substrate - diameter range: 0.07 mm to 1 mm.
• Insulation: Ceramic - thickness 5 to 20 µm.

Thermal characteristics

• Continuous service temperature: -90°C to +500°C
• Peak temperature: +800°C for 240 hours; +1000°C

Electrical characteristics

• Rated voltage: 150 V for one minute
• Maximum resistance (ρ) at 20°C: 3 µΩ.cm
• Maximum resistance (ρ) as a function of temperature: Linear evolution/temperature ρ(t)= ρ(20°C) + 0.0109*t
• Maximum resistance (ρ) at 500°C:
  • 8.45 µΩ.cm initially
  • 8.70 µΩ.cm after 3000 hours
  • 9.04 µΩ.cm after 20000 hours
• Insulation resistance:
  • 75000 MΩ.cm at 25°C
  • 22 MΩ.cm at 800°C

Mechanical characteristics

• Minimum bending radius: 5 x cable outer diameter
• Breaking load: 23.9 daN/mm2

Fire resistance

• Totally non-combustible cableFor temperatures >1000°C, CERAFIL® may melt, but cannot ignite.

• Chemical resistanceInert to customary and organic chemical solvents.
• Hydrophilmoisture-sensitive product.

Radiation resistance

• Withstands prolonged exposure to neutrons and gamma rays without changes to the mechanical seal of the insulation. Consult us for more information.

Vacuum resistance

• No outgassing

• Designed for high-tech sectors:
  • Aeronautics
  • Aerospace
  • Nuclear
  • Military
• Windings, electric motors, transformers, special coils, temperature probes.