TY - RPRT A1 - Skopp, André T1 - Tribologisches Verhalten von Siliziumnitridwerkstoffen bei Festkörpergleitreibung zwischen 22 °C und 1000 °C N2 - Unter den Hochleistungskeramiken ist Siliziumnitrid (SI3N4) ein Werkstofftyp, der gleichzeitig mechanisch und tribologisch hoch beansprucht werden kann. In diesem Bericht werden die das tribologische Verhalten betreffenden Fragestellungen eingehend untersucht. T3 - BAM Forschungsberichtreihe - 197 PY - 1993 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-2535 SN - 978-3-89429-400-0 SN - 0938-5533 VL - 197 SP - 1 EP - 259 PB - Wirtschaftsverlag NW CY - Bremerhaven AN - OPUS4-253 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Skopp, André A1 - Klaffke, Dieter T1 - Tribologische Untersuchungen an TiN-, DLC- und Diamantbeschichtungen bei oszillierender Gleitbewegung T2 - Tagung Reibung und Verschleiß CY - Bad Nauheim, Deutschland DA - 1996-03-21 KW - Tribologie KW - Titan Stickstoff KW - Diamant KW - DLC-Beschichtung KW - Beschichtung PY - 1996 SN - 3-88355-220-8 SP - 111 EP - 116 PB - DGM Informationsges.-Verl. CY - Oberursel AN - OPUS4-656 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Skopp, André A1 - Klaffke, Dieter T1 - Friction and Wear Behaviour of Hard Coatings in Vibrating Contacts N2 - The friction and wear behaviour of thin hard coatings, such as TiN and the promising class of C-based coatings (a-C, a-C:H, and diamond for example), are compared under oscillating and reciprocating sliding conditions. The typical effects of test parameters, such as stroke, frequency, normal force, relative humidity and test duration, are described as a basis for the proper selection of test conditions or, conversely, for the selection of suitable coatings for particular practical applications. Friction and wear data from over 1000 vibrating tests using thin hard coatings against 100Cr6 and against Al2O3 have been compiled in a database. This allows easy manipulation and comparison of test results. Using selection criteria and filter procedures (e. g., lifetime of coatings, friction limits, and critical wear rate), suitable coating systems for different test conditions can be chosen from the database. The effects of test parameters on friction and wear behaviour and changes have anyway to be known for meaningful tribotesting, as well as for the selection of coatings. KW - Tribotesting KW - Vibrating contacts KW - Friction KW - Wear KW - Running in KW - Hard coatings KW - TiN KW - Diamond-like carbon KW - DLC KW - Diamond KW - Operational parameters KW - Relative humidity KW - Surface analysis KW - Database PY - 1999 U6 - https://doi.org/10.1002/tt.3020060206 SN - 1354-4063 SN - 1557-685X VL - 6-2 SP - 171 EP - 192 PB - Coppin CY - Deal AN - OPUS4-839 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Skopp, André A1 - Klaffke, Dieter ED - Bartz, Wilfried J. T1 - Tribological behaviour of hard coatings T2 - 11th International Colloquium "Tribology - Industrial and Automotive Lubrication", CY - Ostfildern, Germany DA - 1998-01-14 PY - 1998 SN - 3-924813-39-6 VL - 2 SP - 1039 EP - 1050 PB - Techn. Akad. Esslingen CY - Ostfildern AN - OPUS4-2425 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Skopp, André A1 - Woydt, Mathias T1 - Expertise on ceramic type coatings: Compilation of the macroscopic, microscopic and micro analytical results of samples coated with present solution of 8Y2O3oZrO2 rub tested against SiC tipped IN 718 blade - Work package 4 N2 - Gas turbine efficiency is significantly influenced by the pressure losses caused by the inevitable gap between the rotating turbine blades and the stator parts. Because contact between rotor and stator cannot be completely avoided with a small gap, systems are designed to allow for some rubbing. Honeycombs or abradable MCrAlY stator coatings are normally used to minimize the wear of the rotor blades when rubbing occurs. But, more efficient solutions must be developed on modern engines, because both suffer temperature limitation and standard MCrAlY have usually poor abradability. For higher temperature and closer control of the gap, a thick thermal-barrier coating must be applied on the stator, but presently with no rub-tolerance. To increase the abradability of the stator coating, its composition and structure can be modified, but such changes must be strictly limited with respect to the loss of erosion resistance. The solution can then lie in the hardening of the rotating blade tip to permit the use of harder ceramic or metallic coatings on the stator with greater resistance to erosion. These systems typically consist, on the blade tip, of hard particles embedded in a softer metallic matrix. In the present programme, it is therefore intended: - to assess the present European solutions, standard or in development, for outer air seals and blade tips. - to develop coated grits or new grits for the hardening of the blade tips, as well as to improve the matrix and the stator coating for long life systems. - to optimize the most promising of these systems, that will be tested on development rigs and on engine. The consortium includes several engine manufacturers, which are the potential users of the innovating solutions to be developed, companies having a large experience in the field of abradables and tip coatings and non industrial partners involved in tribology and materials science. T2 - Project 2. Advanced Abradables and Tip Coatings for Gas Turbines (BRITE-EURAM BRPR960187) CY - Berlin, Germany DA - 1998-01-01 PY - 1998 SN - 92-828-3230-9 SN - 1018-5593 IS - 17766 SP - 1(?) EP - 244(?) PB - Off. for Off. Publ. of the Europ. Communities CY - Luxembourg AN - OPUS4-2426 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kloß, Heinz A1 - Skopp, André A1 - Woydt, Mathias ED - Bartz, Wilfried J. T1 - Wear prediction in ultra-high speed and high temperature applications PY - 2000 SN - 3-924813-44-2 VL - 3 SP - 1639 EP - 1646 PB - Techn. Akad. Esslingen CY - Ostfildern AN - OPUS4-2427 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böllinghaus, Thomas A1 - Schobbert, Helmut A1 - Lammers, Marco A1 - Michael, Thomas A1 - Skopp, André T1 - Laser-Plasma-Pulver-Schweißen hochlegierter austenitischer Stähle T2 - 5. Konferenz "Strahltechnik" CY - Halle (Saale), Deutschland DA - 2001-11-27 PY - 2001 SP - 67 EP - 76 CY - Halle (Saale) AN - OPUS4-2428 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Skopp, André A1 - Klaffke, Dieter A1 - Buchkremer-Hermanns, H. A1 - Ren, H. A1 - Weiß, H. T1 - Tribological behavior of MW PACVD diamond coatings in vibrating contacts KW - Diamond coatings KW - Chemical vapour deposition KW - MW PACVD KW - Vibrating contacts KW - Steel/diamond pairings KW - Running-in KW - Wear KW - SEM KW - EDX KW - LRS KW - AFM KW - Surfaces KW - Wear scar KW - Transfer layer KW - Debris PY - 1997 SN - 1354-4063 SN - 1557-685X VL - 4-1 SP - 3 EP - 27 PB - Coppin CY - Deal AN - OPUS4-2429 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Schobbert, Helmut A1 - Böllinghaus, Thomas A1 - Skopp, André ED - Sepold, G. T1 - Kurzzeitmetallurgische Phänomene bei schnellen Umschmelzprozessen im System Fe-Cr-Ni in der Nähe der eutektischen Rinne PY - 2002 SN - 3-933762-08-1 N1 - Serientitel: Strahltechnik – Series title: Strahltechnik IS - 18 SP - 201 EP - 217 PB - BIAS CY - Bremen AN - OPUS4-2065 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Wahi, R. A1 - Chen, Weiye A1 - Kutumbarao, V. A1 - Skopp, André ED - Andersen, S. T1 - Deformation behaviour of NIMONIC PE16 under creep and tensile loading at 650°C T2 - 8th Risø International Symposium on Metallurgy and Materials Science CY - Roskilde, Denmark DA - 1987-09-07 PY - 1987 SN - 87-550-1331-7 SP - 537 EP - 542 PB - Risø National Laboratory CY - Roskilde, Denmark AN - OPUS4-2401 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -