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  2. Research
  3. Ultra-hard Coatings
  4. CVD diamond coatings of metals and ceramics

CVD diamond coatings of metals and ceramics

In page navigation: Research
  • Additive Manufacturing
    • Alloy development for additiv manufacturing
    • Cellular mechanical metamaterials
    • Development of process strategies
    • Expansion of the capability of SEBM by improved electron beam technology
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    • Investment casting and high temperature alloys
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      • Alloy development for high pressure die casting
      • In-situ reinforcement of Aluminium casting alloys
      • Diamond coating of molds and tools
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  • Ultra-hard Coatings
    • Process technology
      • Development and Up-Scaling of the hot filament process for diamond CVD
      • Alloying of metals and metal compounds in diamond CVD facilities
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    • CVD diamond coatings of metals and ceramics
      • CVD diamond on Steel
      • CVD diamond on hard metals
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      • Titanium- and Tantalum-based CVD coatings
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CVD diamond coatings of metals and ceramics

It is possible to diamond coat all metals in Groups IV to VI of the periodic system with melting temperatures > 700 °C (except Technetium) via microwave plasma CVD and hot-filament CVD. Stable carbide formers such as Titanium or Tungsten are easily coatable with diamond. Metals like Iron, Nickel and Cobalt with metastable carbides lead to graphite segregations and therefore the diamond layers do not adhere properly.
CVD diamond grows well on precious metals (Gold, Silver, Copper), but due to the missing carbides no chemical bonding is possible.
After 15 years of intense research and development of special high temperature CVD intermediate layers, it is now possible to produce strong adhering diamond coating on steel and Cobalt-Tungsten-Carbides.

⇒ CVD diamond on Steel

⇒ CVD diamond on hard metals

⇒ CVD diamond on ceramics

⇒ Titanium- and Tantalum-based CVD coatings

 

Image1 CVD Beschichtung metallischer und keramischer Bauteile 1 (Foto David Hartfiel) call
(Foto David Hartfiel)
Image1 CVD Diamond coatings 2 call

 




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