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Hierarchy of micromechanical influences on friction and wear of submicron alumina and zirconia ceramics

Hierarchie mikromechanischer Einflüsse auf Reibung und Verschleiß von Al2O3- und ZrO2-Keramiken mit Submikrometer-Gefügen
 
: Krell, A.; Klaffke, D.

Meriani, S.; Sergo, V. ; European Ceramic Society:
Fourth Euro-Ceramics 1995. Proceedings of the Fourth European Ceramic Society Conference. Vol.3: Basic science - optimisation of properties and performances by improved design and microstructural control
Faenza: Ed. Faenza, 1995
ISBN: 88-8138-007-2
S.39-46
Euro-Ceramics (ECerS) <4, 1995, Riccione>
Englisch
Konferenzbeitrag
Fraunhofer IKTS ()
Al2O3; Al2O3/TiC composite; Al2O3/TiC Komposit; Eigenspannung; friction wear; grain boundary; grain boundary stability; grain size; hardness; Härte; Korngrenzenstabilität; Korngröße; Reibung; residual stresses; Verschleiß; ZrO2

Abstract
Friction and wear of alumina and zirconia ceramics with grain sizes between 0.3 and 3 micrometers are investigated in different media. Experimental evidence is presented for a hierarchical order of micromechanical influences like the grain boundary toughness, subcritical crack growth resistance, residual microstresses, and the hardness. The different grain size dependencies of these parameters result in different grain size effects in wear depending on the active micromechanisms.

: http://publica.fraunhofer.de/dokumente/PX-17030.html