Physicochemical properties of solid solutions in the system TbO/sub x/-YO/sub 1. 5/
There have not been any systematic studies of the properties of solid solutions in the system TbO/sub x/-YO/sub 1.5/ (1.500 less than or equal to x < 2), apart from the work of Wolf and Schwab, who used x-ray phase and iodometric chemical analyses for studying the dependence of the degree of oxidation of terbium on its concentration in solid solutions with yttrium oxide. It was of interest in this connection to study in greater detail the properties of solid solutions in the given system using a combination of methods of physicochemical analysis. The following methods were used: thermogravimetric analysis, high-temperature x-ray diffraction, dilatometry, conductivity measurement with separation of electronic and ionic conductivity components in air, and differential thermal analysis. Their results lead to the conclusion that the character of thermal expansion and the magnitude and type of conductivity of solid solutions in the system TbO/sub x/-YO/sub 1.5/ depend closely on the oxidation state of terbium in the solid solution.
- OSTI ID:
- 6182450
- Journal Information:
- J. Appl. Chem. USSR (Engl. Transl.); (United States), Vol. 60:10; Other Information: Translated from Zh. Prikl. Khim.; 60: No. 10, 2182-2187(Oct 1987)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
TERBIUM OXIDES
PHYSICAL PROPERTIES
YTTRIUM OXIDES
CHEMICAL REACTION KINETICS
DIFFERENTIAL THERMAL ANALYSIS
DILATOMETRY
ELECTRIC CONDUCTIVITY
IONIC CONDUCTIVITY
ISOTHERMS
LATTICE PARAMETERS
OXIDATION
REDUCTION
REFRACTORIES
SOLID SOLUTIONS
THERMAL EXPANSION
THERMAL GRAVIMETRIC ANALYSIS
VALENCE
X-RAY DIFFRACTION
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COHERENT SCATTERING
DIFFRACTION
DISPERSIONS
ELECTRICAL PROPERTIES
EXPANSION
GRAVIMETRIC ANALYSIS
KINETICS
MIXTURES
OXIDES
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
RARE EARTH COMPOUNDS
REACTION KINETICS
SCATTERING
SOLUTIONS
TERBIUM COMPOUNDS
THERMAL ANALYSIS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies
400201 - Chemical & Physicochemical Properties