TY - CONF A1 - Wolter, Christian T1 - A bottom-up approach to study metal sulphides in brake friction materials at higher temperatures T2 - WTC 2017 N2 - The impact of metal sulphides in brake friction materials on the friction behaviour of disc brakes was studied at two different temperatures and in two different atmospheres using a pin-on-disc device with powder supply. Powder mixtures were prepared by using a bottom-up approach, where magnetite is the main component, in which different metal sulphides are mixed in. At 400 °C, the resulting coefficients of friction are higher in air than in nitrogen atmosphere, which can be attributed to the generation of metal oxides and were confirmed by doing thermal analysis. T2 - The 6th World Tribology Congress CY - Beijing, China DA - 17.09.2017 KW - Brake friction materials KW - Artificial third body KW - Metal sulphies PY - 2017 SP - 1 EP - 3 AN - OPUS4-42452 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -