TY - CONF A1 - Marwitz, Christian T1 - Messung der Adhäsion zwischen Kugel und metallischen Oberflächen mit Hilfe des Rasterkraftmikroskops im Ultrahochvakuum T2 - 62. Tribologie-Kolloquium des GfT-Arbeitskreises Berlin-Brandenburg CY - Berlin, Germany DA - 2008-12-02 PY - 2008 AN - OPUS4-18320 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Marwitz, Christian A1 - Kloß, Heinz T1 - Bestimmung von Adhäsionskräften mit dem Rasterkraftmikroskop T2 - 51. Tribologie-Fachtagung - Reibung, Schmierung und Verschleiß - Forschung und praktische Anwendungen CY - Göttingen, Deutschland DA - 2010-09-27 KW - Adhäsion KW - Deformation KW - AFM KW - Rauheit PY - 2010 SN - 978-3-00-032180-1 VL - II SP - 53/1 EP - 53/13 CY - Aachen AN - OPUS4-23946 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kloß, Heinz A1 - Marwitz, Christian A1 - Breitkreiz, Maxim T1 - Reibung - eine mehrskalige Beschreibung unter Berücksichtigung von Modellbetrachtungen, experimentellen Ergebnissen und Simulationsrechnungen KW - Reibung KW - Adhäsion KW - Deformation KW - Rauheit KW - Simulation KW - Reaktionsschicht KW - Friction KW - Adhesion KW - Roughness KW - Reaction layer PY - 2010 SN - 0724-3472 VL - 57 IS - 6 SP - 14 EP - 18 PB - Expert Verlag CY - Renningen AN - OPUS4-23356 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Marwitz, Christian A1 - Stegemann, B. A1 - Breitkreiz, Maxim A1 - Spaltmann, Dirk A1 - Kloß, Heinz A1 - Woydt, Mathias A1 - Sturm, Heinz T1 - Correlation of adhesion force and electrical conductivity in Magnéli-type vanadium oxides and highly oriented pyrolytic graphite N2 - A correlation of adhesion force and electrical conductivity is established for a vanadium oxide and highly oriented pyrolytic graphite (HOPG). Adhesion forces were determined by analysis of pull-off forces obtained from force–distance curves with atomic force microscopy in ultrahigh vacuum, on clean surfaces and with defined contact conditions. The investigated samples include (i) different stoichiometries of Magnéli-type vanadium oxides (V3O5, V4O7, V6O11, and V7O13), which undergo metal-insulator-transitions as a function of temperature, (ii) the (0001) basal plane and the (10–10) prism plane of highly oriented pyrolytic graphite (HOPG), which differ in their respective perpendicular-plane electrical conductivities by several orders of magnitude, and (iii) the (100) surfaces of pure metal single crystals, i.e., silver (Ag), copper (Cu), iron (Fe) and gold (Au). It is shown, that the vanadium oxides as well as the graphite exhibit significantly lower adhesion forces in their electrical conductive state than in their non-electrical conductive state. The values obtained for the electrical conductive states are quantitatively confirmed by the measurements on the single crystal metals. KW - Adhesion force KW - HOPG KW - Vanadium oxide KW - Magnéli phases KW - Single crystal metals KW - Atomic force microscopy PY - 2011 DO - https://doi.org/10.1016/j.susc.2011.04.014 SN - 0039-6028 VL - 605 IS - 13-14 SP - 1271 EP - 1274 PB - Elsevier CY - Amsterdam AN - OPUS4-23953 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -