Thermal expansion of the carbides of group IV--VI metals (transition class)

Journal Article · Tue Mar 01 04:00:00 EST 1977 · High Temp. (USSR) (Engl. Transl.); (United States)

OSTI ID:7091922

Fridlender, B A; Neshpor, V S

The thermal expansion of the monocarbides (MeC) and lower carbides (Me/sub 2/C) of the Group IV--VI transition metals was studied between room temperature and 2000 and 500/sup 0/C, respectively. The thermal-expansion coefficient (TEC) of the Me/sub 2/C falls on passing from the lower carbides of the Group IV metals to the carbides of the Group VI metals; this is associated with an increment in the strength of the bonds between the metal atoms in the carbides. On considering the monocarbides of the transition metals a ''double periodicity'' appears in the relationship between the TEC and the order (atomic) number of the metal component. This is associated with the repulsive contribution to the bond energy from the screened Me--Me bonds.

• Research Organization: State Institute of Applied Chemsitry
• OSTI ID: 7091922
• Journal Information: High Temp. (USSR) (Engl. Transl.); (United States), Journal Name: High Temp. (USSR) (Engl. Transl.); (United States) Vol. 14:5; ISSN HITEA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
CARBIDES
CARBON COMPOUNDS
EXPANSION
HAFNIUM CARBIDES
HAFNIUM COMPOUNDS
HIGH TEMPERATURE
MEDIUM TEMPERATURE
MOLYBDENUM CARBIDES
MOLYBDENUM COMPOUNDS
NIOBIUM CARBIDES
NIOBIUM COMPOUNDS
TANTALUM CARBIDES
TANTALUM COMPOUNDS
TEMPERATURE DEPENDENCE
THERMAL EXPANSION
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN CARBIDES
TUNGSTEN COMPOUNDS
ZIRCONIUM CARBIDES
ZIRCONIUM COMPOUNDS