Mechanical performance of ZrB2-ZrO2-SiC multilayer composite materials

A. G. Burlachenko, Yu A. Mirovoy, E. S. Dedova, S. P. Buyakova

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

Abstract

ZrB2-ZrO2-SiC multilayer composite materials were studied under three-point deformation and diametric compression. The results for ZrB2-20 v/v % SiC ceramics were compared with ZrB2-20 v/v % SiC ceramic composites with ZrO2-doped layers with ZrO2 concentration from 0% to 100%. The studies were conducted before and after the high-temperature loads in high-enthalpy oxygen-containing plasma. The surface fractography after three-point deformation reveals the main crack bifurcation on the interface of the composite layers containing 30% and 70% of ZrO2 with the highest difference in thermal-extension coefficients without any effect of the loading conditions. Fracture energy of the multilayer ZrB2-SiC-ZrO2 composite was found significantly higher than one for ZrB2-20% SiC ceramics. The increase of ZrO2 concentration resulted in a significant rise of the thermal-expansion coefficient and reduction of the elastic coefficient.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology
EditorsVictor E. Panin, Vasily M. Fomin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440463
DOIs
Publication statusPublished - 14 Dec 2020
EventInternational Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology 2020 - Tomsk, Russian Federation
Duration: 5 Oct 20209 Oct 2020

Publication series

NameAIP Conference Proceedings
Volume2310
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology 2020
CountryRussian Federation
CityTomsk
Period5.10.209.10.20

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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