Vertical Sections of the Al2O3–HfO2–La2O3 Phase Diagram
For more complete description of the Al 2 O 3 –HfO 2 –La 2 O 3 phase diagram, three vertical sections are constructed in a wide temperature and composition range. Isopleth 20 mol.% HfO 2 (20H) shows the Al 2 O 3 –HfO 2 –La 2 O 3 constitution in the Al 2 O 3 -rich region. Isopleth 60 mol.% HfO 2 (60H...
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| Veröffentlicht in: | Powder metallurgy and metal ceramics 2016-05, Vol.55 (1-2), p.72-77 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | For more complete description of the Al
2
O
3
–HfO
2
–La
2
O
3
phase diagram, three vertical sections are constructed in a wide temperature and composition range. Isopleth 20 mol.% HfO
2
(20H) shows the Al
2
O
3
–HfO
2
–La
2
O
3
constitution in the Al
2
O
3
-rich region. Isopleth 60 mol.% HfO
2
(60H) describes the ternary system in the Al
2
O
3
- and La
2
O
3
-rich regions and F ⇄ T phase transformation of HfO
2
solid solutions. The radial La
2
O
3
–(50 mol.% Al
2
O
3
· 50 mol.% HfO
2
) vertical section reveals the nature of X ⇄ H ⇄ A phase transformations of La
2
O
3
solid solutions. The vertical sections intersect all three triangulating planes of the Al
2
O
3
–HfO
2
–La
2
O
3
system and demonstrate variation in the width of their two-phase regions. |
|---|---|
| ISSN: | 1068-1302 1573-9066 |
| DOI: | 10.1007/s11106-016-9782-3 |