Phase Formation in Al2O3–ZrO2–CeO2 Nanopowders Modified with Calcium Cations


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We have studied phase formation in calcium-modified Al2O3–ZrO2–CeO2 nanopowders during sol–gel synthesis. The results demonstrate that heat treatment of the nanopowders first leads to the formation of a zirconium dioxide-based solid solution stabilized with cerium cations. Raising the heat treatment temperature helps the crystallization of corundum, a stable phase of aluminum oxide, to reach completion. In the temperature range 1400–1550°C, we observe the formation of a second aluminum-containing phase: calcium cerium hexaaluminate consisting of long prismatic grains.

作者简介

L. Podzorova

Baikov Institute of Metallurgy and Materials Science

编辑信件的主要联系方式.
Email: ludpodzorova@gmail.com
俄罗斯联邦, Leninskii pr. 49, Moscow, 119991

A. Il’icheva

Baikov Institute of Metallurgy and Materials Science

Email: ludpodzorova@gmail.com
俄罗斯联邦, Leninskii pr. 49, Moscow, 119991

O. Pen’kova

Baikov Institute of Metallurgy and Materials Science

Email: ludpodzorova@gmail.com
俄罗斯联邦, Leninskii pr. 49, Moscow, 119991

V. Sirotinkin

Baikov Institute of Metallurgy and Materials Science

Email: ludpodzorova@gmail.com
俄罗斯联邦, Leninskii pr. 49, Moscow, 119991

O. Antonova

Baikov Institute of Metallurgy and Materials Science

Email: ludpodzorova@gmail.com
俄罗斯联邦, Leninskii pr. 49, Moscow, 119991

A. Konovalov

Baikov Institute of Metallurgy and Materials Science

Email: ludpodzorova@gmail.com
俄罗斯联邦, Leninskii pr. 49, Moscow, 119991

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