Effect of Immersion Time on Corrosion Behavior of Single-Phase Alloy and Nanocomposite Bismuth Telluride-Based Thermoelectrics in NaCl Solution

Effect of Immersion Time on Corrosion Behavior of Single-Phase Alloy and Nanocomposite Bismuth... JMEPEG ASM International https://doi.org/10.1007/s11665-018-3442-3 1059-9495/$19.00 Effect of Immersion Time on Corrosion Behavior of Single-Phase Alloy and Nanocomposite Bismuth Telluride-Based Thermoelectrics in NaCl Solution Mohsen K. Keshavarz and Arash Fattah-Alhosseini (Submitted December 29, 2017; in revised form May 14, 2018) The corrosiveness of bismuth telluride-based thermoelectric materials (n-type single-phase alloy and a nanocomposite with MoS nanoinclusions), in 0.1 molar solution of sodium chloride (NaCl), was investi- gated. The electrochemical impedance spectroscopy curves obtained after 1, 24, 48 and 72 h immersion time revealed the enhancement of the corrosion resistance of the nanocomposite specimen in a 0.1 molar NaCl solution in comparison with the single-phase bismuth telluride-based alloys, and the passivity in- creased by immersion time up to 72 h. The nanocomposite sample with submicron grains provided suit- able nucleation sites for passive film nucleation that led to higher protective behavior. (i.e. passivity) to other telluride compounds such as PbTe or Keywords bismuth telluride, corrosion behavior, electrochemical Sb Te where it was concluded that PbTe has a higher corrosion 2 3 impedance spectroscopy (EIS), nanocomposite, ther- resistance in a sodium chloride solution than Bi Te and Sb Te moelectric 2 3 2 3 (Ref 12), or to characterize some electronic properties http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Engineering and Performance Springer Journals

Effect of Immersion Time on Corrosion Behavior of Single-Phase Alloy and Nanocomposite Bismuth Telluride-Based Thermoelectrics in NaCl Solution

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Publisher
Springer US
Copyright
Copyright © 2018 by ASM International
Subject
Materials Science; Characterization and Evaluation of Materials; Tribology, Corrosion and Coatings; Quality Control, Reliability, Safety and Risk; Engineering Design
ISSN
1059-9495
eISSN
1544-1024
D.O.I.
10.1007/s11665-018-3442-3
Publisher site
See Article on Publisher Site

Abstract

JMEPEG ASM International https://doi.org/10.1007/s11665-018-3442-3 1059-9495/$19.00 Effect of Immersion Time on Corrosion Behavior of Single-Phase Alloy and Nanocomposite Bismuth Telluride-Based Thermoelectrics in NaCl Solution Mohsen K. Keshavarz and Arash Fattah-Alhosseini (Submitted December 29, 2017; in revised form May 14, 2018) The corrosiveness of bismuth telluride-based thermoelectric materials (n-type single-phase alloy and a nanocomposite with MoS nanoinclusions), in 0.1 molar solution of sodium chloride (NaCl), was investi- gated. The electrochemical impedance spectroscopy curves obtained after 1, 24, 48 and 72 h immersion time revealed the enhancement of the corrosion resistance of the nanocomposite specimen in a 0.1 molar NaCl solution in comparison with the single-phase bismuth telluride-based alloys, and the passivity in- creased by immersion time up to 72 h. The nanocomposite sample with submicron grains provided suit- able nucleation sites for passive film nucleation that led to higher protective behavior. (i.e. passivity) to other telluride compounds such as PbTe or Keywords bismuth telluride, corrosion behavior, electrochemical Sb Te where it was concluded that PbTe has a higher corrosion 2 3 impedance spectroscopy (EIS), nanocomposite, ther- resistance in a sodium chloride solution than Bi Te and Sb Te moelectric 2 3 2 3 (Ref 12), or to characterize some electronic properties

Journal

Journal of Materials Engineering and PerformanceSpringer Journals

Published: May 31, 2018

References

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