Effect of carbon nanotubes and graphene nanoplatelets on the mechanical properties of zirconia-based composites

Andrey Leonov, Mark Kalashnikov, Jing Li, Ekaterina Abdulmenova, Maxim Rudmin, Yurii Ivanov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work, ZrO2 composites reinforced by single-walled carbon nanotubes (SWCNT), multi-walled carbon nanotubes (MWCNT) and graphene nanoplatelets (GNP) were investigated. Composites were prepared by spark plasma sintering at a temperature of 1500°C. The influence of various carbon nanomaterials (CNM) on the microstructure, densification, microhardness, fracture toughness and crack propagation of zirconia-based composites was investigated. It is found that CNMs retain their structure after high-temperature sintering. The maximum increase in fracture toughness from 4.0 MPa·m1/2 to 5.5 MPa·m1/2 is found for a composite with SWCNTs. However, GNPs seem more effective as reinforcement than SWCNTs and MWCNTs, because the ZrO2/GNP composite has an increased density (99.4%) and fracture toughness (5.2 MPa·m1/2) compared to ZrO2 ceramics and in addition, the microhardness is not so much reduced in comparison with the ZrO2/SWCNT composite.

Original languageEnglish
Title of host publicationProceedings - 2020 7th International Congress on Energy Fluxes and Radiation Effects, EFRE 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1169-1173
Number of pages5
ISBN (Electronic)9781728126869
DOIs
Publication statusPublished - 14 Sep 2020
Event7th International Congress on Energy Fluxes and Radiation Effects, EFRE 2020 - Virtual, Tomsk, Russian Federation
Duration: 14 Sep 202026 Sep 2020

Publication series

NameProceedings - 2020 7th International Congress on Energy Fluxes and Radiation Effects, EFRE 2020

Conference

Conference7th International Congress on Energy Fluxes and Radiation Effects, EFRE 2020
CountryRussian Federation
CityVirtual, Tomsk
Period14.9.2026.9.20

Keywords

  • Carbon nanotubes
  • Graphene
  • Mechanical properties
  • Zirconia composite

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

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