TY - CONF A1 - Cano Murillo, Natalia A1 - Balasooriya, Winoj A1 - Theiler, Geraldine T1 - Effect of hydrogen environment on the physical and mechanical properties of elastomers N2 - The development of a robust hydrogen infrastructure poses challenges to materials exposed to high pressurized hydrogen environments. Polymeric materials, which are expected to perform as seals, gaskets, O-rings, hoses among other applications face high risk of damage due to rapid gas decompression (RGD) which might cause operational safety issues. In this study, we intend to assess the effects of a high pressurized hydrogen environment on carbon black filled (CB) elastomers. The materials were exposed to 100 MPa hydrogen atmosphere at room temperature and at 85°C. Ex-situ characterization was performed during the first 30 minutes after decompression and repeated two days after the exposure when total gas desorption has taken place. The physical and mechanical characteristics of the materials were determined by means of density and volume change, hardness and tensile tests, and dynamic mechanical analysis. T2 - EHEC, the European Hydrogen Energy Conference 2024 CY - Bilbao, Spain DA - 06.03.2024 KW - High pressurized Hydrogen KW - Sealing Materials KW - Carbon Black Filled Elastomers PY - 2024 AN - OPUS4-60706 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Theiler, Geraldine T1 - Friction and wesr behavior of graphite filled polymer composites in hydrogen environment T2 - 5. World Tribology Congress CY - Turin, Italy DA - 2013-09-08 PY - 2013 AN - OPUS4-28901 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Theiler, Geraldine T1 - Influence of the temperature on the tribological behaviour of PEEK composites in vacuum T2 - 17th International Vacuum Congress (IVC 17); 13th International Conference on Surface Science (ICSS-13) CY - Stockholm, Sweden DA - 2007-07-01 PY - 2007 AN - OPUS4-16267 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Theiler, Geraldine T1 - Tribological behaviour of PEEK composites in vacuum environment T2 - 12th European Space Mechanisms and Tribology Symposium (ESMATS 12) CY - Liverpool, England DA - 2007-09-19 PY - 2007 AN - OPUS4-17480 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Theiler, Geraldine T1 - MoS2 filled PEEK composite as a self lubricating material for aerospace applications T2 - 40th Aerospace Mechanisms Symposium CY - Cocoa Beach, FL, USA DA - 2010-05-12 PY - 2010 AN - OPUS4-20752 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Theiler, Geraldine T1 - Effect of temperature on the friction behaviour of rubber materials in hydrogen N2 - Safety and reliability are the major challenges to face for the development and acceptance of hydrogen technology. It is therefore crucial to study deeply material compatibility, in particular for tribological components that are directly in contact with hydrogen. Some of the most critical parts are sealing components that face high risk of damage due variation of pressure, temperature and mechanical stress. In this study, the friction and wear behaviour of several rubber materials was evaluated in hydrogen environment at ambient and low temperature. Tests were performed against 316L disks in a reciprocation motion. Results reveal that the hydrogen affects the friction and wear behaviour of most materials. The friction mechanism is dominated by deformation for most rubber materials at ambient temperature while sliding occurs at low temperature due to the increased hardness of the rubbers. T2 - Polytrib 2024 CY - Portorož, Slovenia DA - 03.10.2024 KW - Reciprocating sliding KW - Rubber materials KW - Hydrogen KW - Low temperature PY - 2024 AN - OPUS4-62019 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Theiler, Geraldine T1 - On the sliding behavior of PAEK composites in vacuum environment N2 - The tribological behavior of PAEK composites were investigated in air and vacuum environment. Results indicate that the tribological performance of these compounds depends on material compositions, fiber orientation as well as test conditions. In vacuum, very low friction and wear coefficient were obtained at low sliding speed while severe wear occurred at high speed. T2 - The 6th World Tribology Congress - WTC 2017 CY - Beijing, China DA - 17.09.2017 KW - PAEK KW - Sliding performances KW - Vacuum PY - 2017 AN - OPUS4-42447 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Theiler, Geraldine A1 - Gradt, Thomas T1 - Benchmarking of polymer materials for tribological applications in hydrogen N2 - The focus of this study is to evaluate the influence of hydrogen on the friction and wear behavior of a wide range of polymer materials. Thereby, the tribological performance of filled und unfilled polymers from different suppliers were compared at room temperature in air and hydrogen gas (H2) as well as in liquid hydrogen at -235°C (LH2). T2 - 23rd International Conference on Wear of Materials CY - Online meeting DA - 26.04.2021 KW - Polymers KW - Hydrogen KW - Friction KW - Wear PY - 2021 AN - OPUS4-52651 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -