|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ЦЭМИ РАН |
||
Zirconium (hafnium)-containing yttriumoxane alumoxanes and multicomponent ceramics based on themстатья
- Авторы: 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.
- Журнал: Russian Journal of Inorganic Chemistry
- Том: 68
- Номер: 11
- Год издания: 2023
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1657
- Последняя страница: 1673
- DOI: 10.1134/S0036023623602155
- Аннотация: 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.
- Добавил в систему: Апухтина Татьяна Леонидовна