Behavior of Te in plastically deformed Bi/sub 2/(Te, Se)/sub 3/ alloys
Journal Article
·
· Inorg. Mater. (Engl. Transl.); (United States)
OSTI ID:5310035
The authors studied the influence of plastic deformation and excess Te on the donor effect in Bi/sub 2/(Te, Se)/sub 3/ alloys. The investigations were carried out primarily on alloys of the composition Bi/sub 2/Te/sub 2.4/Se/sub 0.6/. Annealing was performed in capsules, preliminarily evacuated to 10/sup -1/ Pa, and then filled with helium of special purity. On the plastic deformation of samples, electrophysical properties were measured, viz., the thermo-emf coefficient, electrical conductivity, and the Hall effect by the usual methods, and metallographic analysis was performed with an MIM-7 microscope. Plastic deformation of alloys, based on Bi/sub 2/(Te, Se)/sub 3/, leads to dissolution of Te, occurring in the second phase, upon increasing pressure. Deformation and temperature accelerate the dissolution. Primary recrystallization, caused by the high degree of deformation, decreases the deformation of Te in the newly forming crystal grains
- OSTI ID:
- 5310035
- Journal Information:
- Inorg. Mater. (Engl. Transl.); (United States), Journal Name: Inorg. Mater. (Engl. Transl.); (United States) Vol. 23:6; ISSN INOMA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
360603 -- Materials-- Properties
BISMUTH COMPOUNDS
BISMUTH SELENIDES
BISMUTH TELLURIDES
CHALCOGENIDES
CRYSTAL STRUCTURE
DEFORMATION
DIFFUSION
DISSOLUTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMOTIVE FORCE
ELECTRON MOBILITY
ELEMENTS
ELONGATION
EXTRUSION
FABRICATION
HALL EFFECT
HOT PRESSING
MATERIALS WORKING
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
MICROSTRUCTURE
MOBILITY
PARTICLE MOBILITY
PHYSICAL PROPERTIES
PLASTICITY
PRESSING
PRESSURE EFFECTS
RECRYSTALLIZATION
SELENIDES
SELENIUM COMPOUNDS
SEMIMETALS
TELLURIDES
TELLURIUM
TELLURIUM COMPOUNDS
THERMOELECTRIC PROPERTIES
360602* -- Other Materials-- Structure & Phase Studies
360603 -- Materials-- Properties
BISMUTH COMPOUNDS
BISMUTH SELENIDES
BISMUTH TELLURIDES
CHALCOGENIDES
CRYSTAL STRUCTURE
DEFORMATION
DIFFUSION
DISSOLUTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMOTIVE FORCE
ELECTRON MOBILITY
ELEMENTS
ELONGATION
EXTRUSION
FABRICATION
HALL EFFECT
HOT PRESSING
MATERIALS WORKING
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
MICROSTRUCTURE
MOBILITY
PARTICLE MOBILITY
PHYSICAL PROPERTIES
PLASTICITY
PRESSING
PRESSURE EFFECTS
RECRYSTALLIZATION
SELENIDES
SELENIUM COMPOUNDS
SEMIMETALS
TELLURIDES
TELLURIUM
TELLURIUM COMPOUNDS
THERMOELECTRIC PROPERTIES