Abstract

Multi-walled carbon nanotubes/calcium zirconium phosphate composite (MWCNTs/CZP) ceramics were successfully synthesized by co-precipitation to improve the mechanical strength of CZP ceramics sintered at 1100 ℃ under an argon atmosphere. The impact of the different weight percentages of MWCNTs (ranging from 0.1 to 1.0 wt%) on the structure, morphological, and mechanical strength of CZP was investigated. Microstructural analysis revealed the grain size was reduced and the surface morphology and densification were improved by the addition of MWCNTs compared to pure CZP ceramics. The flexural strength and modulus of 0.5 MWCNTs/CZP composite were measured at 91.76 MPa and 21.98 GPa, respectively, further revealing that MWCNTs had significant effects on densification and mechanical strength of CZP ceramics.

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