Effect of Composition on the Structure and Properties of MgO/Y2O3 Composite Ceramics

— We have studied the effect of the ratio of the macrocomponents of magnesium oxide- and yttrium oxide-based composite ceramics on their microstructure and optical and mechanical properties over the entire composition range. The ceramics were produced under identical conditions by hot-pressing nanop...

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Bibliographic Details
Published in:Inorganic materials 2022-06, Vol.58 (6), p.643-650, Article 643
Main Authors: Permin, D. A., Belyaev, A. V., Balabanov, S. S., Koshkin, V. A., Boldin, M. S., Novikova, A. V., Timofeev, O. V., Gashpar, Zh. K., Ladenkov, I. V.
Format: Article
Language:English
Subjects:
Ceramics
Chemistry
Chemistry and Materials Science
Composition effects
Grain size
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Magnesium oxide
Materials Science
Mechanical properties
Microhardness
Optical properties
Self propagating high temperature synthesis
Superconductors (materials)
Yttrium oxide
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Summary:— We have studied the effect of the ratio of the macrocomponents of magnesium oxide- and yttrium oxide-based composite ceramics on their microstructure and optical and mechanical properties over the entire composition range. The ceramics were produced under identical conditions by hot-pressing nanopowders prepared by self-propagating high-temperature synthesis. The composition of the ceramics has been shown to have a significant effect on their optical transmission, average grain size, and density, whereas their microhardness is essentially independent of composition. Composite ceramics with a magnesium oxide to yttrium oxide volume ratio of 50 : 50 are optimal for most practical applications.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168522060085