Liquidus Surface of the ZrO2-Y2O3-Eu2O3 Phase Diagram

被引:7
作者
Andrievskaya, E. R. [1 ]
Kovylyaev, V. V. [2 ]
Lopato, L. M.
Shevchenko, A. V.
Frolov, A. A.
机构
[1] Natl Acad Sci Ukraine, Frantsevich Inst Problems Mat Sci, Kiev, Ukraine
[2] Natl Tech Univ Ukraine, Kiev Polytech Inst, Kiev, Ukraine
关键词
phase equilibria; liquidus surface; phase diagram; zirconium oxide; yttrium oxide; europium oxide; ZIRCONIA; EQUILIBRIA; SYSTEM; YTTRIA; HAFNIA; SOLIDIFICATION; OXIDE;
D O I
10.1007/s11106-014-9618-y
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The derivative thermal analysis in air up to 3000 A degrees C, X-ray diffraction, petrography, and electron microscopy are employed to examine phase equilibria on the liquidus surface of the ZrO2-Y2O3-Eu2O3 phase diagram. It is established that the liquidus surface of the system is formed by four primary solidification fields of the phases: solid solutions based on hexagonal (N) and cubic (C) crystalline modifications of Y2O3, cubic ZrO2 modification with fluorite (F) structure, and high-temperature cubic modification (X) of Eu2O3. Two four-phase invariant incongruent equilibria are found in the ternary system.
引用
收藏
页码:312 / 322
页数:11
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