Zirconium (Hafnium)-Containing Yttriumoxane Alumoxanes and Multicomponent Ceramics Based on Them

Ceramic-forming zirconium (hafnium)-containing yttriumoxane alumoxanes, precursors of multicomponent ceramics based on alumina, yttria and zirconia/hafnia, were synthesized by co-condensation of chelated alkoxyalumoxanes, yttrium acetylacetonate hydrate (or organic yttriumoxane alumoxanes) and zirco...

Full description

Saved in:
Bibliographic Details
Published in:Russian journal of inorganic chemistry 2023-11, Vol.68 (11), p.1657-1673
Main Authors: Shcherbakova, G. I., Pokhorenko, A. S., Krivtsova, N. S., Varfolomeev, M. S., Drachev, A. I., Lebed, J. B., Ashmarin, A. A., Apuhtina, T. L., Chernyshev, A. E., Storozhenko, P. A.
Format: Article
Language:English
Subjects:
Ceramic powders
Ceramics
Chemistry
Chemistry and Materials Science
Hafnium oxide
Inorganic Chemistry
Inorganic Materials and Nanomaterials
Pyrolysis
Yttrium
Yttrium oxide
Zirconium dioxide
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ceramic-forming zirconium (hafnium)-containing yttriumoxane alumoxanes, precursors of multicomponent ceramics based on alumina, yttria and zirconia/hafnia, were synthesized by co-condensation of chelated alkoxyalumoxanes, yttrium acetylacetonate hydrate (or organic yttriumoxane alumoxanes) and zirconium or hafnium acetylacetonate. The physicochemical properties of zirconium (hafnium)-containing yttriumoxane alumoxanes were studied. Computational models of the group and elemental composition of oligomeric Zr(Hf)-containing yttriumoxane alumoxane molecules were proposed. According to X-ray diffraction and scanning electron microscopy data, pyrolysis of the oligomers at 1500–1600°C results in multicomponent nano- or fine-crystalline ceramic powders, depending on the Al/Y and Al/Zr(Hf) molar ratios.
ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023623602155