Published May 1990 | Version v1
Journal article Metadata-only

Phase equilibria in pseudoternary system HfO2-Y2O3-Al2O3

Creators

  • 1. Moskovskij Gosudarstvennyj Univ., Moscow (USSR)

Description

HfO2-Y2O3 and HfO2-Y2O3-Al2O3 systems are investigated at 1800 deg C using annealing and hardening techniques. Occurrence of 5 three-phase ranges and 5 two-phase ones which divide them is shown. Experimental data agree qualitatively with results of thermodynamic analysis. No ternary compounds are determined to occur in the system. Mutual solubility of binary phases is not detected whithin experiment error limits

Additional details

Additional titles

Original title (Russian)
Фазовые равновесия в псевдотройной системе HfO

Publishing Information

Journal Title
Neorganicheskie Materialy
Journal Volume
26
Journal Issue
5
Series
Neorg. Mater.
Journal Page Range
1002-1006
CODEN
NEOMB

INIS

Country of Publication
USSR
Country of Input or Organization
USSR
INIS RN
22042488
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ALUMINIUM OXIDES; HAFNIUM OXIDES; LATTICE PARAMETERS; PHASE DIAGRAMS; THERMODYNAMIC ACTIVITY; VERY HIGH TEMPERATURE; YTTRIUM OXIDES
Descriptors DEC
ALUMINIUM COMPOUNDS; CHALCOGENIDES; DIAGRAMS; HAFNIUM COMPOUNDS; INFORMATION; OXIDES; OXYGEN COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS