CVD diamond foils for mechanical applications

The production of the CVD diamond layer can take place separately from the components’ surface. To achieve this, a CVD diamond coating is deposited on silicon or copper based substrates. Free-standing diamond foils with a layer thickness of 20 µm and above can be peeled off the substrate. Laser cutting allows the adequate tailoring of the diamond foils. Bonding and soldering processes are currently under research and are developed for „cold” application onto the component surface.

Application examples:

• Diamond foils on steel to avoid damage caused by high pressured erosion by a water-sand mixture.
• Diamond foils on steel to reduce friction (no aluminium adhesion) and wear during aluminium processing.

• Fecher J., Wormser M., Rosiwal S.:
  Long term oxidation behavior of micro- and nano-crystalline CVD diamond foils
  In: Diamond and Related Materials 61 (2016), p. 41-45
  ISSN: 0925-9635
  DOI: 10.1016/j.diamond.2015.11.009
• Lodes M., Kachold F., Rosiwal S.:
  Mechanical properties of micro- and nanocrystalline diamond foils
  In: Philosophical Transactions of the Royal Society A-Mathematical Physical and Engineering Sciences 373 (2015), Art.No.: 20140136
  ISSN: 1364-503X
  DOI: 10.1098/rsta.2014.0136
• Lodes M., Sailer S., Rosiwal S., Singer R.:
  Adhesive bonding and brazing of nanocrystalline diamond foil onto different substrate materials
  In: Applied Surface Science 282 (2013), p. 335-341
  ISSN: 0169-4332
  DOI: 10.1016/j.apsusc.2013.05.129
• Kachold F., Lodes M., Rosiwal S., Singer R.:
  Direct measurement of Young's modulus, fracture strength and fracture toughness of nanocrystalline diamond foil by means of tensile testing
  In: Acta Materialia 61 (2013), p. 7000-7008
  ISSN: 1359-6454
  DOI: 10.1016/j.actamat.2013.08.014
• Sobolewski S., Lodes M., Rosiwal S., Singer R.:
  Surface energy of growth and seeding side of free standing nanocrystalline diamond foils
  In: Surface & Coatings Technology 232 (2013), p. 640-644
  ISSN: 0257-8972
  DOI: 10.1016/j.surfcoat.2013.06.051
• Uhlmann E., Langmack M., Fecher J., Rosiwal S., Singer R.:
  Using boron doped diamond foils for fabrication of micro cavities with EDM
  13th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2013
  URL: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84908155805&origin=inward
• Ramakrishnan R., Lodes M., Rosiwal S., Singer R.:
  Self-supporting nanocrystalline diamond foils: Influence of template morphologies on the mechanical properties measured by ball on three balls testing
  In: Acta Materialia 59 (2011), p. 3343-3351
  ISSN: 1359-6454
  DOI: 10.1016/j.actamat.2011.02.009
• Uhlmann E., Langmack M., Garn R., Oberschmidt D., Fecher J., Rosiwal S., Singer R.:
  Using diamond coated tool-electrodes for drilling micro holes with EDM
  11th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2011
  URL: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84908255357&origin=inward
• Lodes M., Rosiwal S., Singer R.:
  Self-supporting nanocrystalline diamond foils - A new concept for crystalline diamond on any technical surface
  In: Key Engineering Materials 438 (2010), p. 163-169
  ISSN: 1013-9826
  DOI: 10.4028/www.scientific.net/KEM.438.163