Current research projects

Image Hybrid- Fluid for CO2-Sublimation Cycle
Image Humidifier System for High-Purity Gases
Image Computational fluid dynamics CFD
Image Testzentrum PLWP at ILK Dresden
Image Swirl-free on the move...
Image Development of a Cryogenic Magnetic Air Separation Unit
Image Certifiable connection types in cryogenics
Image Software for technical building equipment
Image Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K
Image Certification of efficient air conditioning and ventilation systems through the new "indoor air quality seal" for non-residential buildings
Image Optimizing HVAC operation with machine learning
Image Influenced melting point of water by magnetic field
Image Multifunctional electronic modules for cryogenic applications
Image Mass Spectrometer
Image IO-Scan - Integral measuring optical scanning method
Image Investigation of material-dependent parameters

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Low Temperature Tribology

Industry and R&D

Dipl.-Ing. Gunar Schroeder

+49-351-4081-5129

Tribological studies at cryogenic temperatures

For special applications at cryogenic temperatures the use of dry friction is necessary because the working temperatures are significant lower than the working range of liquid lubricants.

The ILK Dresden has extensive experience in the field of material testing at cryogenic temperatures and has developed a measuring system (from roomtemperature down to cryogenic temperatures) to determine the roughness and the coefficient of friction of different sliding material combinations.

The test stand consists of an experimental platform and a traversing mechanism with a force sensor, which is controlled via PC. The direct measurement of the friction force is carried out by the distance covered. Measurements can be performed down to −196 °C (lower temperatures on request). The cooling of the experimental platform and the samples is realised by a controlled liquid nitrogen heat exchanger/evaporator. Measurements are performed under an atmosphere of gaseous nitrogen to prevent the ingress of moisture. Thereby the experimental samples have no direct contact to liquid nitrogen. The uniform temperature distribution is measured by thermocouples, which are calibrated at the ILK Dresden.

Advantages: modular test setup which can be changed to specific requirements; adjustment of sample geometry and/or test track is possible.

Parameter

Measuring accuracyMeasuring range 0.4 N to 2 N≤ 1 % of measured value
Measuring range 2 N to 100 N≤ 0.5 % of measured value
Measuring range extendible up to 5 kN

Repeatability
(e.g. PTFE)

± 0.05 N respectively 1.5 % of coefficient of friction

Your Request

Further Projects

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ZeroHeatPump

Performance management of small heat pumps without energy consumption

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Mass Spectrometer

Determining the composition of gas mixtures in the high or ultra-high vacuum range

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Tensile and compression testing

Determination of yield strength, tensile strength and elongation at break

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Investigation of material-dependent parameters

Investigation of the permeation behavior