АL2О3-ZrO2-Yb2О3, PHASE DIAGRAM. II.LIQUIDUS SURFACE

 
L.Lopato,
 
Z.O.ZAYCEVA
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2008, #05/06
http://www.materials.kiev.ua/article/739

Abstract

The liquidus surface for the АL2О3-ZrO2-Yb2О3 phase diagram is constructed for the first time. No ternary compounds are found in the system. The liquidus surface is completed by seven primary crystallization fields. Two four-phase invariant eutectic equilibria, two four-phase invariant transition equilibria, and one three-phase invariant eutectic equilibrium are found in the ternary system. Since ZrO2 interacts with other phases eutectically, compos¬ite materials can combine the unique properties of ZrO2 -based T- and F-phases with the properties of other phases of the АL2О3-ZrO2-Yb2О3 system.


ALUMINA, INTERACTION, LIQUIDUS SURFACE, STATE DIAGRAM, YTTERBIA, ZIRCONIA