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Electroconductive ZrO 2 –Al 2 O 3 –25vol% TiN ceramic nanocomposites were prepared by spark plasma sintering at 1200°C for 3min. The electrical resistivity of the composites decreased from 4.5×10 −4 Ωm to 3×10 −5 Ωm as the Al 2 O 3 content in the ZrO 2 –Al 2 O 3 matrix increased from 0 to 100vol%. SEM images graphically...
3Y-TZP matrix composites containing 0.1–1wt.% of multi-wall (MWCNT) and single-wall (SWCNT) carbon nanotubes were fabricated by spark plasma sintering technique. The sintered composites reached full density. Hardness and fracture toughness were measured using Vickers indention method. The hardness of the composite decreased with increasing weight content of the MWNT. The fracture toughness was 5.52MPam...
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