Activity Characterisation of diamond coated piston rings

Internally funded project

Project Details

Project leader:
PD Dr.-Ing. Stefan Rosiwal

Contributing FAU Organisations:
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)

Start date: 01/01/1995

Research Fields

Ultra Hard Coatings
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)

Abstract (technical / expert description):

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 <111> 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. (2013). Adhesive bonding and brazing of nanocrystalline diamond foil onto different substrate materials. Applied Surface Science, 282, 335-341.
Schade, A., Rosiwal, S., & Singer, R. (2007). Influence of surface topography of HF-CVD diamond films on self-mated planar sliding contacts in dry environments. Surface & Coatings Technology, 201(14), 6197-6205.
Perle, M., Bareiss, C., Rosiwal, S., & Singer, R. (2006). Generation and oxidation of wear debris in dry running tests of diamond coated SiC bearings. Diamond and Related Materials, 15(4-8), 749-753.
Schade, A., Perle, M., Rosiwal, S., & Singer, R. (2004). Micro structured CVD diamond coated sliding bearings for improved tribological performance under dry running conditions. Materialwissenschaft und Werkstofftechnik, 35, 929-935.
Jentsch, H.-G., Berner, A., Eberlein, W., Rosiwal, S., Singer, R., Breit, N.,... Schreyer, N. (2001). CVD-Diamond-coatings on silicon-carbide-bearings for dry-running-conditions. In Werkstoffwoche 2001 (pp. 153-167). München: München: Wiley-VCH.
Zeiler, E., Rosiwal, S., Singer, R., & Klaffke, D. (2000). Reducing Friction and Wear of Titanium Alloys by CVD-Diamond Coating. In TRibology 2000 - PLUS (pp. 1861-1871). Esslingen.
Klaffke, D., Zeiler, E., Grögler, T., Hiltner, K., Rosiwal, S., & Singer, R. (1999). Friction and wear behaviour of polycrystalline diamond coatings on Ti-6Al-4V in sliding contact with ceramics. Tribologie und Schmierungstechnik, 46(5), 45-49.
Grögler, T., Rosiwal, S., & Singer, R. (1999). Verschleißschutz von Titanlegierungen für die Luftfahrttechnik durch CVD-Diamantschichten. In R. Stauber, C. Liesner, R. Bütje, M. Bannasch (Hrg.), Werkstoffe für die Verfahrenstechnik/Werkstoffwoche 98, Symposium 2 (pp. 503-508). München: Wiley-VCH.
Grögler, T., Franz, A., Klaffke, D., Rosiwal, S., & Singer, R. (1998). Tribological optimization of CVD diamond coated Ti-6A1-4V. Diamond and Related Materials, 7(9), 1342-1347.

Last updated on 2019-03-05 at 11:38