• Skip navigation
  • Skip to navigation
  • Skip to the bottom
Simulate organization breadcrumb open Simulate organization breadcrumb close
Lehrstuhllogo
  • FAUTo the central FAU website
  1. Friedrich-Alexander-Universität
  2. Faculty of Engineering
  3. Department Materials Science and Engineering
  • English
  • Deutsch
  • My Campus
  • UnivIS
  1. Friedrich-Alexander-Universität
  2. Faculty of Engineering
  3. Department Materials Science and Engineering

Lehrstuhllogo

Navigation Navigation close
  • Chair
    • Team
    • Career
    • Contact
    Portal Chair
  • Research
    • Additive Manufacturing
    • Modelling and Simulation
    • Casting Technology
    • Ultra-hard Coatings
    • High Performance Alloys
    • Equipment
    • Publications
    • Dissertations
    Portal Research
  • Teaching
    • Lectures
    • Theses
    • Scripts and Instructions
    Portal Teaching
  1. Home
  2. Research
  3. Ultra-hard Coatings
  4. Test and characterisation of coated surfaces and components
  5. Piston rings

Piston rings

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
    • Selectiv electron beam melting of special alloys
  • Modelling and Simulation
    • Simulation of additive manufacturing
    • Multi-Criteria Optimization
    • Foam simulation
  • Casting Technology
    • Investment casting and high temperature alloys
    • High pressure die casting and lightweight materials
      • Alloy development for high pressure die casting
      • In-situ reinforcement of Aluminium casting alloys
      • Diamond coating of molds and tools
      • Integral foam molding
      • Integration of piezoceramic modules
  • 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
      • Electrochemical reactors with diamond electrodes for aqueous electrolytes
    • CVD diamond coatings of metals and ceramics
      • CVD diamond on Steel
      • CVD diamond on hard metals
      • CVD diamond on ceramics
      • Titanium- and Tantalum-based CVD coatings
    • CVD diamond foils
      • CVD diamond foils for mechanical applications
      • CVD diamond foils for thermoelectric applications
    • Test and characterisation of coated surfaces and components
      • Piston rings
      • Diamond electrodes
      • Steel tools
  • High Performance Alloys
    • Combinatorial alloy development by LMD
    • Development of high performance alloys
    • Using X-Rays and Neutrons for Materials Characterization
  • Equipment
  • Publications
  • Dissertations

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.

Image2 Piston rings 1 - Tribometer test of SiC in dry run conditions call
Tribometer test of SiC in dry run conditions
Image2 Piston rings 2 - Tribometer test of diamond coated SiC in dry run conditions call
Tribometer test of diamond coated SiC in dry run conditions

Contact:

apl. Prof. Dr.-Ing. habil. Stefan M. Rosiwal

Publications:

  • 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)
    In: Werkstoffwoche 2001, München: 2001



  • Imprint
  • Privacy
  • Accessibility
Up