phase equilibria diagramcrystallization schemephase diagramThe solidus surface for the Al 2 O 3 –HfO 2 –Y 2 O 3 phase diagram is constructed for the first time. It consists of five isothermal fields, which correspond to four invariant eutectic equilibria and one invariant transformation ...
Chirkin, "Nd2O3-Al2O3-Y2O3 phase diagram and the growth of (Y'Nd)Al5O12 single crystals", Crystallogr. Rep., 48 [5] (2003) 945-949.SOBOLEVA L V,CHIRKIN A P.Y2O3-Al2O3-Nd2O3 Phase diagram and the growth of (Y,Nd)3Al5O12 single crystals[J].Crystallography Reports,2003,...
All three phases in the binary YO–AlO-phase diagram (YAlO, YAlOand YAlO) and α-alumina are located by EBSD. Energy dispersive X-ray spectrometry results obtained from these microspheres show that their chemical composition can deviate from the nominal composition of the precursor powder. The ...
Isothermal section of the phase diagram of the HfO2-Y2O3-La2O3 system at 1600°C Lakiza S,Red'ko V,Lopato L. Phase Diagram of the Al2O3-ZrO2-Nd2O3 System.Part 1.Isothermal Sections of the Phase Diagram at 1250 and 1650 ℃[J].Powder Metallurgy and Metal Ceramics,2003,(7-8):394...
The ternary phase diagram of the AlN-Al2O3-Y2O3 was developed by Gibbs energy minimization using interpolation procedures based on the modelling of the binary subsystems. Binary diagrams of Al2O3-Y2O3, AlN-Al2O3, and AlN-Y2O3 were thermodynamically modelled. The calculated Gibbs energies of ...
Four quarternary phase regions occur in this system: H Si3N4 Y2O3·Si2N2O 3Y2O3·5Al2O3 H Si3N4 3Y2O3·5Al2O3-O′ss H Si3N4 O′ ss Si2N2O H Y2O3·Si2N2O 3Y2O3·5Al2O3 4Y2O3·Si2N2O·Al2O3 From the results of this work, the sub-solidus phase diagram and the isothermal ...
The phase diagram of the Al 2O 3–HfO 2–Y 2O 3 system was first constructed in the temperature range 1200–2800 °C. The phase transformations in the system are completed in eutectic reactions. No ternary compounds or regions of appreciable solid solution were found in the components or ...
The calculated phase diagram of the Al 2 O 3 -Y 2 O 3 system is in reasonable agreement with experimental data. According to the calculations, the YAP phase melts congruently and is stable down to the low temperatures, while the YAM phase disproportionates to a mixture of YAP and Y 2 ...
The isothermal sections of the Al2O3-TiO2-Y2O3 phase diagram are constructed for the first time at 1550 and 1400 degrees C. New phases or appreciable homogeneity ranges based on components and binary compounds are not found in the ternary system. Triangulation of the system is determined by ...
For better presentation of the Al 2 O 3 –HfO 2 –Y 2 O 3 phase diagram over wide ranges of temperatures and concentrations, three vertical sections are plotted to show interactions in the ternary system. The Y 2 O 3 bisector shows the Y 2 O 3 -rich region of the Al 2 O 3 –Hf...