TY - RPRT A1 - Schmidt, R. A1 - Klingenberg, G. A1 - Woydt, Mathias T1 - New lubrication concepts for environmental friendly machines N2 - The use of alternative oils for the lubrication of automobile engines has a potential of ecological and technical advantages. It requires the detailed knowledge of several thermophysical and viscometric properties in a large temperature range (mapping). Therefore, the following properties of up to twenty-eight different oils have been measured in the temperature range from 22 °C to 150 °C: density, heat capacity, thermal conductivity, viscosity at ambient pressure, viscosity under shear rates above 10 6 s-1, and the viscosity at elevated pressures (maximum 100 MPa). The last two have been measured with a substantially improved and a newly developed apparatus, respectively. The pressure- viscosity coefficient has been measured on four hydrocarbon-based, factory-fill oils, a paraffin oil and twenty-three alternative oils. Nine of the alternative oils are based partly or completely on esters, the other fourteen on polyglycols, two of them additionally on water. T3 - BAM Forschungsberichtreihe - 277 KW - Polyglycol KW - Ester KW - PAG KW - PPG KW - Factory fill KW - Hydrocarbon KW - Bio-no-tox oils KW - Engine oil KW - Bio-oils KW - EAL KW - Eco-lubricants KW - Heat capacity PY - 2006 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-1748 SN - 978-3-86509-528-3 SN - 0938-5533 VL - 277 SP - 1 EP - 59 PB - Wirtschaftsverlag NW CY - Bremerhaven AN - OPUS4-174 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Woydt, Mathias T1 - Oil free machinery and ZERO WEAR - Dream or reality? JF - Tribology online N2 - Original equipment manufacturers (OEMs) and end-users perceive 'Zero Wear' differently. The 'Zero Wear' approach will be put into a general relation for different applications and illuminated by individual paths, either based on monolithic materials, thin film coatings or alternative base oils, featuring triboactive materials and lubricious oxides for tribological engine components and dry running foil bearings or specific DLC, ta-C and novel Zirconium-based thin film coatings for concentrated contacts above FZG 14 and alternative engine oils (NoSAP & bio-no-tox). The associated tribometric test equipments for these examples will also be detailed. KW - Zero wear KW - SRV KW - Triboactive coatings KW - (Ti,Mo)(C,N) KW - Tin-2Cr2O2n-1 KW - Magnéli KW - DLC KW - Zr(C,N), KW - ta-C KW - Polyglycol PY - 2011 DO - https://doi.org/10.2474/trol.6.101 SN - 1881-2198 VL - 6 IS - 1 SP - 101 EP - 112 CY - Tokyo, Japan AN - OPUS4-31746 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -