Phase transformation study of Pb–Te powders during mechanical alloying

In this study PbTe thermoelectric material was prepared by mechanical alloying using a high energy planetary ball mill. The alloy formation and phase transformation during mechanical alloying was followed by X-ray diffraction (XRD) and differential scanning calorimetry (DSC), and the microscopic mor...

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Published in:Journal of alloys and compounds 2003-04, Vol.353 (1), p.184-188
Main Authors: Bouad, N., Marin-Ayral, R.M., Nabias, G., Tédenac, J.C.
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Crystal structure
Exact sciences and technology
Materials science
Materials synthesis
materials processing
Materials testing
Mechanical alloying
Physics
Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation
Semiconductors
Thermal analysis
Thermal analysis, differential thermal analysis (DTA), differential thermogravimetric analysis
Thermoelectric
X-ray diffraction
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cited_by cdi_FETCH-LOGICAL-c434t-7c6e5f3c735dee3595aa80e6dfff07460620ef882b6e683bc41db68b341a7ee53
cites cdi_FETCH-LOGICAL-c434t-7c6e5f3c735dee3595aa80e6dfff07460620ef882b6e683bc41db68b341a7ee53
container_end_page 188
container_issue 1
container_start_page 184
container_title Journal of alloys and compounds
container_volume 353
creator Bouad, N.
Marin-Ayral, R.M.
Nabias, G.
Tédenac, J.C.
description In this study PbTe thermoelectric material was prepared by mechanical alloying using a high energy planetary ball mill. The alloy formation and phase transformation during mechanical alloying was followed by X-ray diffraction (XRD) and differential scanning calorimetry (DSC), and the microscopic morphology was studied by scanning electron microscopy (SEM). Results show that mechanical alloying is associated with an exothermic reaction between lead and tellurium which promotes the rapid formation of lead telluride and leads to a reasonable milling time (3 h) to obtain PbTe stoichiometric samples.
doi_str_mv 10.1016/S0925-8388(02)01179-9
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1873-4669
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source ScienceDirect Journals
subjects Cross-disciplinary physics: materials science
rheology
Crystal structure
Exact sciences and technology
Materials science
Materials synthesis
materials processing
Materials testing
Mechanical alloying
Physics
Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation
Semiconductors
Thermal analysis
Thermal analysis, differential thermal analysis (DTA), differential thermogravimetric analysis
Thermoelectric
X-ray diffraction
title Phase transformation study of Pb–Te powders during mechanical alloying
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