Self-healing in high temperature ZrB2-SiC ceramics

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

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

Abstract

High-temperature composite materials based on ZrB2-SiC are promising for creating heat-protective multi-cycle structures operating at temperatures over 2000° due to high heat resistance and low specific gravity. In the research the defects self-healing kinetics of high-temperature ZrB2-SiC ceramic composites in the temperature range of 1200-1600° was studied. It has been shown that one of the most effective defects self-healing process was observed after annealing at a temperature of 1600°, regardless of the SiC content. At the same time samples annealed at 1200 and 1400° were significantly inferior in healing ability, despite the increasing of the isothermal exposure time. For all studied composites increasing of the heat treatment duration provided increase of the self-healing percentage. Moreover, defects were eliminated more quickly in ceramics with silicon carbide content of 15 and 20 vol %.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019
EditorsVictor E. Panin, Sergey G. Psakhie, Vasily M. Fomin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419124
DOIs
Publication statusPublished - 19 Nov 2019
EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 - Tomsk, Russian Federation
Duration: 1 Oct 20195 Oct 2019

Publication series

NameAIP Conference Proceedings
Volume2167
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019
CountryRussian Federation
CityTomsk
Period1.10.195.10.19

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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