New phases in the MgF/sub 2/-ScF/sub 3/ system at high pressures
Journal Article
·
· Inorg. Mater. (Engl. Transl.); (United States)
OSTI ID:7045459
At normal pressure, phase relations in the system under consideration are described by a diagram of the eutectic type with intermediate phases. Under strong compression, the system components undergo polymorphic transformations leading to formation of dense modifications: rutile-like MgF/sub 2/ converts at p = 19 GPa to a state with the distorted fluorite-type structure, while ScF/sub 3/ (VF/sub 3/-type) converts at 5-10 GPa to phases having the ..beta..-YF/sub 3/ and LaF/sub 3/ structural types. The present article contains information on new stable and metastable states occuring as a result of interaction between MgF/sub 2/ and ScF/sub 3/ at pressures up to 10 GPa.
- Research Organization:
- Academy of Science of the USSR
- OSTI ID:
- 7045459
- Journal Information:
- Inorg. Mater. (Engl. Transl.); (United States), Journal Name: Inorg. Mater. (Engl. Transl.); (United States) Vol. 22:6; ISSN INOMA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
ANNEALING
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
CRYSTALLIZATION
DIFFRACTION
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HEAT TREATMENTS
LATTICE PARAMETERS
MAGNESIUM COMPOUNDS
MAGNESIUM FLUORIDES
PHASE TRANSFORMATIONS
PRESSURE EFFECTS
SCANDIUM COMPOUNDS
SCANDIUM FLUORIDES
SCATTERING
TEMPERATURE EFFECTS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
360602* -- Other Materials-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
ANNEALING
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
CRYSTALLIZATION
DIFFRACTION
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HEAT TREATMENTS
LATTICE PARAMETERS
MAGNESIUM COMPOUNDS
MAGNESIUM FLUORIDES
PHASE TRANSFORMATIONS
PRESSURE EFFECTS
SCANDIUM COMPOUNDS
SCANDIUM FLUORIDES
SCATTERING
TEMPERATURE EFFECTS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION