The study of the behaviour of the ceramic composites ZrO2(MgO)-Al2O3 in a wide temperature range

The paper presents the results of experimental studies of the temperature dependence of the strength characteristics of porous ceramic composites. It is known that the most significant factors affecting the mechanical characteristics of brittle ceramic composites are the pore structure parameters. I...

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Bibliographic Details
Published inMATEC Web of Conferences Vol. 243; p. 00025
Main Authors Korobenkov, Maxim, Kulkov, Sergey, Leitsin, Vladimir, Tovpinets, Alexander
Format Conference Proceeding Journal Article
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2018
Subjects
Aluminum oxide
Ceramics
Composite materials
Compression tests
Compressive strength
Mechanical properties
Porosity
Temperature
Temperature dependence
Zirconium dioxide
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Summary:The paper presents the results of experimental studies of the temperature dependence of the strength characteristics of porous ceramic composites. It is known that the most significant factors affecting the mechanical characteristics of brittle ceramic composites are the pore structure parameters. Increase of porosity leads to decrease of strength characteristics of ceramic composites, however researches about mutual influence of porosity and temperature of tests on strength characteristics were not carried out. The results of studies to determine the strength characteristics of composites under compression showed that the increase in test temperature led to a decrease in compressive strength for specified types of composite porosity by an average of 10%. Experiments carried out at negative temperatures have shown that samples with a porosity of 21% have the greatest strength sensitivity to temperature test conditions.
ISSN:2274-7214
2261-236X
DOI:10.1051/matecconf/201824300025