Liquid-Phase Synthesis and Investigation of Powders Based on Zirconium Dioxide
— Xerogels in the ZrO 2 (Y 2 O 3 )–Al 2 O 3 system are obtained by the coprecipitation method followed by a low-temperature treatment at –25°C for 24 h. The physicochemical properties of the powders of ZrO 2 (Y 2 O 3 )– x Al 2 O 3 ( х = 15, 20, and 25 mol %) compositions obtained by burning the xero...
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| Veröffentlicht in: | Glass physics and chemistry 2018-11, Vol.44 (6), p.626-631 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | —
Xerogels in the ZrO
2
(Y
2
O
3
)–Al
2
O
3
system are obtained by the coprecipitation method followed by a low-temperature treatment at –25°C for 24 h. The physicochemical properties of the powders of ZrO
2
(Y
2
O
3
)–
x
Al
2
O
3
(
х
= 15, 20, and 25 mol %) compositions obtained by burning the xerogels are studied. It is shown that the introduction of 25 mol % of Al
2
O
3
promotes the deceleration of the growth of the particles of the
t
-ZrO
2
(Y
2
O
3
) tetragonal solid solution. It is established that the obtained powders are characterized by high values of the degree of tetragonality (
c
/
a
= 1.438–1.436). |
|---|---|
| ISSN: | 1087-6596 1608-313X |
| DOI: | 10.1134/S1087659618060111 |