Physical Properties of FortiPhy™ XVD Technology





Sep 22, 2022


Dave Bell

Phygen’s FortiPhy™ XVD Nanoperfection Technology produces a nanocrystalline microstructure that is extremely dense and uniform, for the toughest coatings possible.

Key characteristics include:

  • Extreme hardness and toughness (reduced fatigue and other material breakdown)
  • High cohesive strength (unmatched adhesion)
  • Very low coefficient of friction (improved sliding, rolling, rotation, and release)
  • Excellent corrosion and abrasive wear resistance (longer useful life)
  • Low processing temperature (reduced dimensional, physical, or finish changes)
  • Inert (safer medical implants and prosthetics)
  • Approved for food contact (improved versatility in a variety of industries)

The following table details the physical properties of Phygen’s patented FortiPhy™ XVD Nanoperfection technology (CrN):


Crystal structure FCC (FACE CENTERED CUBIC)
Microstructure Non-columnar, equiaxially grained
Modulus of elasticity (GPa) 400
Knoop microhardness
@ 200g load, (HK)
3000 – 3500
Nanoindentation hardness, (GPa) 30 – 50
Coefficient of friction:
   Diesel fuel lubricated 0.09 – 0.12
   Dry nitrogen 0.18 – 0.22
Surface roughness, Ra (nm) 11.97
Coating wear rate:
Ball-on-disk test, 100N load cell 4mm WC ball,
   Coated sample 2.55 x 103 um³
   Uncoated sample 147 x 103 um³
Coefficient of thermal expansion (x10-6/K) 2.3 (20 – 800ºC / 68 -1472°F)
7.5 (850 – 1040ºC / 1562 – 1904°F )
Scratch Test Critical Load, N 115 – 120