TY - JOUR A1 - Klaffke, Dieter A1 - Berger, Georg A1 - Hartelt, Manfred T1 - Tribologische Untersuchungen an Ti-6Al-4V mit und ohne Calciumtitanat-Reaktionsschicht JF - Biomaterialien KW - Reibung KW - Verschleiß KW - Ti-6Al-4V KW - Calciumtitanat KW - Friction KW - Wear KW - Calcium titanate PY - 2004 SN - 1616-0177 SN - 0011-8656 VL - 5 IS - 2 SP - 67 EP - 70 PB - Verl. Neuer Merkur CY - München AN - OPUS4-3684 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Sander, Harro A1 - Hartelt, Manfred T1 - Influence of Temperature and Relative Humidity on the Friction and Wear of Unlubricated Reciprocating Sliding Steel / Steel Couples JF - TriboTest KW - Reibung KW - Verschleiß KW - Temperatur KW - Schallemission KW - Elektrischer Widerstand KW - Luftfeuchte KW - Friction KW - Wear KW - Reciprocating sliding KW - Relative humidity KW - Temperature KW - Steel couples PY - 2004 SN - 1354-4063 SN - 1557-685X VL - 10-4 IS - 10 SP - 327 EP - 346 PB - Coppin CY - Deal AN - OPUS4-3783 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Spaltmann, Dirk A1 - Hartelt, Manfred A1 - Woydt, Mathias T1 - Ultra-high frequency tribometer for reciprocating sliding motion JF - TriboTest N2 - A novel tribometer has been designed using commercially available components for sliding motion at 40kHz with amplitude between 2.5 and 5µm. The tribometer is equipped with means to measure amplitude, frequency, power required to keep the sample in motion and load applied. The effective motion between the two contacting bodies is monitored. These data are used to evaluate the coefficient of friction. The wear rate was determined after the tests. The set-up was tested using novel, non-commercial substrates such as AlFeCrTi-alloys and tungsten carbide-based coatings as well as Magnéli-type coatings (Tin-2Cr2O2n-1 and TinO2n-1). This paper presents the principle of the ultra-high frequency tribometer and first tribological quantities of materials and coatings tested. KW - Frequency KW - Tribometer KW - Sliding KW - Friction KW - Wear KW - Aluminium alloy KW - Oscillation KW - Magnéli-type phases PY - 2007 DO - https://doi.org/10.1002/tt.41 SN - 1354-4063 SN - 1557-685X VL - 13 IS - 4 SP - 153 EP - 164 PB - Coppin CY - Deal AN - OPUS4-16047 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -