Preparation and electrical properties of solid solutions of La/sub 1-x/Ca/sub x/Cr/sub y/Co/sub 1-y/O/sub 3/ (0 less than or equal to x less than or equal to 0. 3; 0 < y less than or equal to 1)

Journal Article · Sun Mar 01 00:00:00 EST 1987 · Inorg. Mater. (Engl. Transl.); (United States)

OSTI ID:5799593

Tolochko, S P; Kononyuk, I F

Solid solutions of La/sub 1-x/Ca/sub x/Cr/sub y/Co/sub 1-y/O/sub 3/ with a perovskite structure are formed in the investigated substitution intervals: x = 0-0.3, y = 0.1. All chromium-containing solid solutions are p-type semiconductors with specific resistances of 1-10/sup -2/ Omega x cm at room temperature. The thermo-emf coefficients increase with increasing chromium concentration and decrease with increasing calcium content. The melting point and thermal stability of lanthanum cobaltite increase in the presence of chromium, while partial substitution of chromium by cobalt improves the sintering of lanthanum chromite.

• OSTI ID: 5799593
• Journal Information: Inorg. Mater. (Engl. Transl.); (United States), Vol. 22:10; Other Information: Translated from Izv. Akad. Nauk. SSSR, Neorg. Mater.; 22: No. 10, 1696-1700(Oct 1986)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CALCIUM OXIDES
CRYSTAL LATTICES
ELECTRIC CONDUCTIVITY
SINTERING
THERMOELECTRIC PROPERTIES
CHROMIUM OXIDES
COBALT OXIDES
LANTHANUM OXIDES
CALCINATION
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM COMPOUNDS
COBALT COMPOUNDS
COHERENT SCATTERING
CRYSTAL STRUCTURE
DECOMPOSITION
DIFFRACTION
ELECTRICAL PROPERTIES
FABRICATION
LANTHANUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PYROLYSIS
RARE EARTH COMPOUNDS
SCATTERING
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
360204* - Ceramics
Cermets
&amp; Refractories- Physical Properties
360202 - Ceramics
Cermets
&amp; Refractories- Structure &amp; Phase Studies