Abstract
Yttria-stabilized zirconia (YSZ) reinforced with multi-walled carbon nanotubes (MWCNTs) is fabricated through spark plasma sintering (SPS). Raman spectroscopy corroborated that MWCNTs survived the harsh sintering process. The MWCNT/YSZ composite exhibits ~ 34% improvement in fracture toughness as compared to YSZ. Grain refinement, MWCNT pullout and crack bridging are the major toughening mechanisms.
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