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With multi‐wall carbon nanotubes (MWNTs) as reinforcement, a 12 vol% MWNTs/alumina (Al203) ceramic composite was obtained by hot pressing. A fracture toughness of 5.55 + 0.26 MPa‐m1‘, 1.8 times that of pure AI2O3 ceramics, was achieved. Experimental results showed that the enveloping of carbon nanotubes (CNTs) with sodium dodecyl sulfate (SDS) is effective in changing the hydrophobicity of CNTs to...
The mechanical and electrical properties of MWNTs/Al2O3 composite prepared fabricated by hot pressing are investigated. The relation between properties and microstructure of composites is also discussed. With 4wt% MWNTs as reinforcement, the fracture toughness of composite obtained reaches 5.55 MPa·m1/2, which is 80% higher than that of pure Al2O3 obtained in the same conditions. The main toughening...
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