Structural and thermal properties of the phase V/sub 1-x/Cr/sub 2x//sub 3/M/sub x//sub 3/O/sub 2/, M = W/sup 6 +/ or Mo/sup 6 +/
Journal Article
·
· Mater. Res. Bull.; (United States)
The V/sub 1-x/Cr/sub 2x/3/M/sub x/3/O/sub 2/, where M = W/sup 6 +/ or Mo/sup 6 +/, solid solutions have been prepared and studied by x-ray diffraction and DTA methods. Complete crystalline solubility has been found in the system VO/sub 2/--Cr/sub 2/WO/sub 6/. Four phases with related structures have been reported for V/sub 1-x/Cr/2x/3/W/sub x/3/O/sub 2/, at room temperature, they are respectively monoclinic (M1), monoclinic (M2), rutile (R) and trirutile (TR). Only 33 mole percent Cr/sub 2/MoO/sub 6/ dissolves in VO/sub 2/. Two structural transitions from the monoclinic (M1) to the monoclinic (M2) and from the monoclinic (M2) to the rutile (R), have been identified for V/sub 1-x/Cr/sub 2x/3/Mo/sub x/3/O/sub 2/. It is interesting to report that the T/sub c/ first decreases, and then increases, with increasing x in both the systems.
- Research Organization:
- Pennsylvania State Univ., University Park
- OSTI ID:
- 7351336
- Journal Information:
- Mater. Res. Bull.; (United States), Journal Name: Mater. Res. Bull.; (United States) Vol. 11:4; ISSN MRBUA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CHALCOGENIDES
CHROMIUM COMPOUNDS
CRYSTAL STRUCTURE
DIFFERENTIAL THERMAL ANALYSIS
DISPERSIONS
MIXTURES
MOLYBDATES
MOLYBDENUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
SOLID SOLUTIONS
SOLUTIONS
THERMAL ANALYSIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TUNGSTATES
VANADIUM COMPOUNDS
VANADIUM OXIDES
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CHALCOGENIDES
CHROMIUM COMPOUNDS
CRYSTAL STRUCTURE
DIFFERENTIAL THERMAL ANALYSIS
DISPERSIONS
MIXTURES
MOLYBDATES
MOLYBDENUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
SOLID SOLUTIONS
SOLUTIONS
THERMAL ANALYSIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TUNGSTATES
VANADIUM COMPOUNDS
VANADIUM OXIDES