Effect of high pressures on the structure and properties of niobium oxycarbides
Journal Article
·
· Inorg. Mater. (Engl. Transl.); (United States)
OSTI ID:5680913
The effect of high pressure (4.0-9.0 GPa) and temperature (1200-1800/sup 0/C) was studied on the structure and properties of niobium oxycarbide NbC/sub x/O/sub y/ (x = 0.40-0.65; y = 0.17-0.38). It was confirmed that the increase of unit-cell parameter and density in part of the preparations is associated with a filling of structural vacancies in the NbC/sub x/O/sub y/ lattice. Under the above conditions, an increase was not observed in the homogeneity region of cubic (NaCl-type) niobium oxycarbide.
- OSTI ID:
- 5680913
- Journal Information:
- Inorg. Mater. (Engl. Transl.); (United States), Journal Name: Inorg. Mater. (Engl. Transl.); (United States) Vol. 23:1; ISSN INOMA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL DEFECTS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DIFFRACTION
FABRICATION
HEAT TREATMENTS
LATTICE PARAMETERS
MATERIALS WORKING
NIOBIUM CARBIDES
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
OXIDES
OXYCARBIDES
OXYGEN COMPOUNDS
POINT DEFECTS
PRESSING
PRESSURE EFFECTS
REFRACTORY METAL COMPOUNDS
SCATTERING
TEMPERATURE EFFECTS
THERMOMECHANICAL TREATMENTS
TRANSITION ELEMENT COMPOUNDS
VACANCIES
X-RAY DIFFRACTION
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL DEFECTS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DIFFRACTION
FABRICATION
HEAT TREATMENTS
LATTICE PARAMETERS
MATERIALS WORKING
NIOBIUM CARBIDES
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
OXIDES
OXYCARBIDES
OXYGEN COMPOUNDS
POINT DEFECTS
PRESSING
PRESSURE EFFECTS
REFRACTORY METAL COMPOUNDS
SCATTERING
TEMPERATURE EFFECTS
THERMOMECHANICAL TREATMENTS
TRANSITION ELEMENT COMPOUNDS
VACANCIES
X-RAY DIFFRACTION