The Al2O3–HfO2–La2O3 phase diagram. I. Liquidus and solidus surfaces

Lakiza, S. M.; Tishchenko, Ya. S.; Zaitseva, Z. O.; Red’ko, V. P.; Lopato, L. M.

doi:10.1007/s11106-011-9266-4

Cited by 3 publications

(5 citation statements)

References 11 publications

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Section: Resultsmentioning

confidence: 60%

“…The general character of liquidus surface is reproduced well, but inconsistency between calculations and experimental data still exists. The calculated temperatures of U 4 and U 5 are much lower than the data of Lakiza et al 49 It is difficult to solve as we give more weight to the more reliable eutectic reactions of E 2 and e 6 . The major solidus areas are formed by four isothermal fields: AL + T + P, AL + b + P, b + P + LA, and LA + P + A, which correspond to peritectic equilibria U 4 and U 5 , as well as eutectic equilibria E 2 and E 1 .…”

mentioning

confidence: 60%

“…Figure shows the calculated liquidus and solidus projection surfaces in the HfO 2 –La 2 O 3 –Al 2 O 3 system, which is studied by Lakiza et al . using the high‐temperature DTA, XRD, crystal optics, and microstructural analysis.…”

Section: Resultsmentioning

confidence: 99%

“…The reported content of LA was trace, therefore it is hard to decide which one is more reasonable and further experiment may be needed. Figure 12 shows the calculated liquidus and solidus projection surfaces in the HfO 2 -La 2 O 3 -Al 2 O 3 system, which is studied by Lakiza et al 49 using the high-temperature DTA, XRD, crystal optics, and microstructural analysis. M phase has no primary crystallization region because it exists at temperature which is below binary eutectic.…”

Section: Ternary Systemmentioning

confidence: 99%

“…Calculated invariant reactions in the binary systems compared with the experimental data31,40,42,44,45,48,49 …”

mentioning

confidence: 99%

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Thermodynamic Modeling of the HfO₂–La₂O₃–Al₂O₃ System

et al. 2016

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Based on phase equilibria, thermodynamic, and crystal structure data, the thermodynamic modeling of HfO2–La2O3–Al2O3 system is presented. Liquid phase is described by the modified quasichemical model considering the short‐range ordering in liquid solution. Solid solutions are described by the ionic sublattice model considering respective crystal structure. The model (La3+, Hf4+)2(Hf4+, La3+)2(O2−, Va)6(O2−)1(Va, O2−)1 successfully describes the structure defect, homogeneity range, and thermodynamic property of pyrochlore solid solution. A set of optimized model parameters is obtained which reproduces most experimental data well. Isothermal sections, liquidus and solidus projections, and Scheil reaction scheme are constructed.

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Section: Resultsmentioning

confidence: 60%

mentioning

confidence: 60%

Section: Resultsmentioning

confidence: 99%

Section: Ternary Systemmentioning

confidence: 99%

“…Calculated invariant reactions in the binary systems compared with the experimental data31,40,42,44,45,48,49 …”

mentioning

confidence: 99%