High temperature mechanical loss spectrum of 3Y-TZP zirconia reinforced with carbon nanotubes or silicon carbide whiskers
High temperature plasticity of fine-grained ceramics (ZrO2, Al2O3, etc) is usually associated with a grain boundary sliding process. The aim of the present research is then to improve the high-temperature mechanical strength of polycrystalline zirconia (3Y-TZP) through the insertion of multiwalled carbon nanotubes (CNTs) or silicon carbide whiskers (SiCw), which are susceptible to pin the grain boundaries. The effect of these nano-sized particles on grain boundary sliding has been studied by mechanical spectroscopy.
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Keywords: polycrystalline zirconia ; carbon nanotubes ; silicon carbide whiskers ; mechanical spectroscopy ; internal friction ; Tetragonal Zirconia ; Grain-Boundaries ; Superplasticity ; Ceramics ; Deformation ; Polycrystals ; Support ; Creep
Record created on 2010-11-30, modified on 2016-08-09