Ortsaufgelöste Messung mikrotribologischer Eigenschaften mehrphasiger Oxidkeramiken mit der Rastersondenmikroskopie
作者： C. Ziebert , K.-H. Zum Gahr
关键词: Tungsten carbide 、 Titanium nitride 、 Microstructure 、 Friction coefficient 、 Tin 、 Chemistry 、 Tungsten 、 Scanning probe microscopy 、 Ceramic 、 Metallurgy 、 Analytical chemistry
摘要: In der Oberflache von monolithischer Aluminiumoxidkeramik wurden durch lasergestutztes Umschmelzen und Zugabe Hafniumoxid (HfO2), Wolfram (W), oder einer Mischung Zirkonoxid (ZrO2), Wolframkarbid (WC) Titannitrid (TiN) mehrphasige Gefuge eingestellt. Mit Hilfe Rastersondenmikroskopie Eigenschaften das tribologische Verhalten verschiedener zweiter Phasen mehrphasigen Al2O3-Keramiken in Kontakt mit Si-Spitzen auf Mikro-/Nanoskala untersucht. Aus den mikrotribologischen Ergebnissen zur Reibungszahl, Einsprungkraft Abrisskraft Abhangigkeit Luftfeuchte Folgerungen fur die tribologischen Wirkmechanismen einzelner abgeleitet. Es zeigte sich ein starker Einfluss weichen Oberflachenfilmen Wechselwirkungen. Investigation of Microtribological Properties on the Micro-Scale Multiphase Oxide Ceramics by Scanning Probe Microscopy Multiphase microstructures were obtained surface monolithic alumina ceramic laser-remelting and addition Hafnium oxide tungsten or a mixture zirconium carbide titanium nitride (TiN). tribological behaviour different second phases multiphase Al2O3 ceramics investigated micro-/nanoscale contact with Si-tips using scanning probe microscopy. From microtribological results concerning friction coefficient, jump-in force, pull-off force as function rel. humidity surrounding air, conclusions derived about effects ceramics. A strong effect interaction between Si-cantilever tip was caused owing to soft films.
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