Coatings

ELECTROPLATING

Nanodiamond suspensions are widely used in electroplating. Nanodiamond additives to galvanic electrolytes significantly improve mechanical properties of coated surfaces.

Advantages:

1. Improvement in coating quality:

1.1. Increase in wear resistance:

  • Cr + nanodiamonds: 2-12 times
  • Ni + nanodiamonds: 4-9 times
  • Cu + nanodiamonds: 9-10 times
  • Au + nanodiamonds: 1.8-5.5 times
  • Ag + nanodiamonds: 4-12 times
  • Sn + nanodiamonds: 3 times
  • Al + nanodiamonds: 10-13 times

1.2. Increase in microhardness:

  • Cr + nanodiamonds: up to 1400-1500 kg/mm
  • Ni + nanodiamonds: up to 800-900 kg/mmü C
  • Cu + nanodiamonds: up to 160 kg/mm
  • Ag + nanodiamonds: up to 180 kg/mm
  • Au + nanodiamonds: up to 250 kg/mm
  • Al + nanodiamonds: up to 600-700 kg/mm

1.3. Reduced porosity of the coating layer:

  • Zn + nanodiamonds: 6-8 times lower
  • Sn + nanodiamonds: 7 times lower
  • Au + nanodiamonds: 6 times lower
  • Ag + nanodiamonds: 8 times lower
  • Cu + nanodiamonds: poreless coating

1.4. Improved corrosion resistance:

  • Cu + nanodiamonds: no reduction of mass observed in standard tests
  • Zn + nanodiamonds: resistance increased 2-4 times

2. 2-10 times increase in products durability

3. Sharp increase in electrolyte throwing power:


  • Cu + nanodiamonds: 3 times
  • Zn + nanodiamonds: 1.5-2 times

4. Increase in elasticity in Cu + nanodiamonds: 2-4 times

Numerous applications include:

  • Punches, dies, matrices and molds
  • Screws, check valves and sprues
  • Gears, shafts and pistons
  • Metal cutting toolsü Bearings
  • Food processing equipment
  • Petrochemical processing equipment
  • Gun barrels

Ray Techniques' advantage: stable nanodiamond suspensions for galvanic and electroless coatings