Structure of materials based on bismuth chalcogenides and obtained by torsional severe plastic deformation

The structure of bulk specimens of powders of Bi 2 Te 2.7 Se 0.3 solid solution after severe torsional plastic deformation at a pressure of 250 MPa and a temperature of 380°C is studied. The microstructure of the specimens is determined by the methods of x-ray diffractometry and scanning and transmi...

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Bibliographic Details
Published in:Metal science and heat treatment 2012-11, Vol.54 (7-8), p.383-386
Main Authors: Bogomolov, D. I., Bublik, V. T., Sokolov, O. B., Tabachkova, N. Yu
Format: Article
Language:English
Subjects:
Bismuth
Chalcogenides
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Diffraction
Engineering Thermodynamics
Heat and Mass Transfer
Materials Science
Metallic Materials
Microstructure
Plastic deformation
Powders
Scanning electron microscopy
Solid solutions
X-rays
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Summary:The structure of bulk specimens of powders of Bi 2 Te 2.7 Se 0.3 solid solution after severe torsional plastic deformation at a pressure of 250 MPa and a temperature of 380°C is studied. The microstructure of the specimens is determined by the methods of x-ray diffractometry and scanning and transmission electron microscopy. The effect of the size of the particles of the initial powder on the faulted structure of the material and on its heat resistance is studied.
ISSN:0026-0673
1573-8973
DOI:10.1007/s11041-012-9517-0