Piston rings

In tribometer experiments CVD-diamond coated silicon carbide piston rings allow dry runs up to 100 km. The diamond wear in these experiments is below 3 µm. Using adjusted process parameters, a textured diamond layer in the direction can be created on the piston ring surface. Therefore, the surface is the most wear resistant when exposed to friction. The diamond coating of piston rings, which has been under investigation since 1995, is now used in industry.

DiaCCon, a company founded by the chair of WTM, is the leading research entity for this application worldwide. A new research topic is the expansion of the diamond piston ring applications to metallic ring materials such as steel or hard metals.

• 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
• Schade A., Rosiwal S., Singer R.:
  Influence of surface topography of HF-CVD diamond films on self-mated planar sliding contacts in dry environments
  In: Surface & Coatings Technology 201 (2007), p. 6197-6205
  ISSN: 0257-8972
  DOI: 10.1016/j.surfcoat.2006.11.024
• Perle M., Bareiss C., Rosiwal S., Singer R.:
  Generation and oxidation of wear debris in dry running tests of diamond coated SiC bearings
  In: Diamond and Related Materials 15 (2006), p. 749-753
  ISSN: 0925-9635
  DOI: 10.1016/j.diamond.2005.10.069
• Schade A., Perle M., Rosiwal S., Singer R.:
  Micro structured CVD diamond coated sliding bearings for improved tribological performance under dry running conditions
  In: Materialwissenschaft und Werkstofftechnik 35 (2004), p. 929-935
  ISSN: 0933-5137
  DOI: 10.1002/mawe.200400831
• Jentsch HG., Berner A., Eberlein W., Rosiwal S., Singer R., Breit N., Dwars A., Schreyer N.:
  CVD-Diamond-coatings on silicon-carbide-bearings for dry-running-conditions
  Symposium Tribological Coatings for Components (München)
• Zeiler E., Rosiwal S., Singer R., Klaffke D.:
  Reducing Friction and Wear of Titanium Alloys by CVD-Diamond Coating
  12th International Colloquium (Esslingen)
• Klaffke D., Zeiler E., Grögler T., Hiltner K., Rosiwal S., Singer R.:
  Friction and wear behaviour of polycrystalline diamond coatings on Ti-6Al-4V in sliding contact with ceramics
  In: Tribologie und Schmierungstechnik 46 (1999), p. 45-49
  ISSN: 0724-3472
• Grögler T., Franz A., Klaffke D., Rosiwal S., Singer R.:
  Tribological optimization of CVD diamond coated Ti-6A1-4V
  In: Diamond and Related Materials 7 (1998), p. 1342-1347
  ISSN: 0925-9635
  URL: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0032172524&origin=inward
• Grögler T., Rosiwal S., Singer R.:
  Verschleißschutz von Titanlegierungen für die Luftfahrttechnik durch CVD-Diamantschichten
  Werkstoffwoche '98 (München)