Microstructural effect on the corrosion behavior of n- and p-type bismuth tellurides fabricated by induction melting
<div>Numerous efforts have been made to understand and enhance the thermoelectric properties of bismuth telluride alloys. However, limited studies have been reported to investigate the corrosion behavior of these alloys and their suitability for industrial applications. This paper examines the...
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2023
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| author | Farah M. El-Makaty (14157090) |
| author2 | Muddasir Nawaz (17052438) R.A. Shakoor (17017692) Abdelmagid Hammuda (17869406) Khaled M. Youssef (14157099) |
| author2_role | author author author author |
| author_facet | Farah M. El-Makaty (14157090) Muddasir Nawaz (17052438) R.A. Shakoor (17017692) Abdelmagid Hammuda (17869406) Khaled M. Youssef (14157099) |
| author_role | author |
| dc.creator.none.fl_str_mv | Farah M. El-Makaty (14157090) Muddasir Nawaz (17052438) R.A. Shakoor (17017692) Abdelmagid Hammuda (17869406) Khaled M. Youssef (14157099) |
| dc.date.none.fl_str_mv | 2023-08-01T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.matchar.2023.112987 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Microstructural_effect_on_the_corrosion_behavior_of_n-_and_p-type_bismuth_tellurides_fabricated_by_induction_melting/25107674 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Mechanical engineering Physical sciences Condensed matter physics Corrosion Induction melting Bismuth telluride Microstructure |
| dc.title.none.fl_str_mv | Microstructural effect on the corrosion behavior of n- and p-type bismuth tellurides fabricated by induction melting |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <div>Numerous efforts have been made to understand and enhance the thermoelectric properties of bismuth telluride alloys. However, limited studies have been reported to investigate the corrosion behavior of these alloys and their suitability for industrial applications. This paper examines the corrosion behavior of three different bismuth telluride alloys prepared by induction melting: pristine Bi<sub>2</sub>Te<sub>3</sub>, n-type Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub>, and p-type Bi<sub>0.6</sub>Sb<sub>1.4</sub>Te<sub>3</sub>. The electrochemical response of the samples is tested in 3.5 wt% NaCl solution at room temperature. Potentiodynamic polarization curves (Tafel plots) revealed that the n-type sample formed a passive layer compared to the pristine and the p-type samples, which showed pitting corrosion. The different trends observed in the samples were related to their evolved microstructures, where fingerprint-like features in the pristine and the p-type samples showed high susceptibility to pitting corrosion. In contrast, a unique needle-like microstructure of the n-type samples acted as nucleation sites for passive layer formation causing higher corrosion resistance in this sample.</div> <h2>Other Information</h2> <p>Published in: Materials Characterization<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br> See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.matchar.2023.112987" target="_blank">https://dx.doi.org/10.1016/j.matchar.2023.112987</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_866e4680cd9b304b0de6f3888b050aaf |
| identifier_str_mv | 10.1016/j.matchar.2023.112987 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/25107674 |
| publishDate | 2023 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Microstructural effect on the corrosion behavior of n- and p-type bismuth tellurides fabricated by induction meltingFarah M. El-Makaty (14157090)Muddasir Nawaz (17052438)R.A. Shakoor (17017692)Abdelmagid Hammuda (17869406)Khaled M. Youssef (14157099)EngineeringMechanical engineeringPhysical sciencesCondensed matter physicsCorrosionInduction meltingBismuth tellurideMicrostructure<div>Numerous efforts have been made to understand and enhance the thermoelectric properties of bismuth telluride alloys. However, limited studies have been reported to investigate the corrosion behavior of these alloys and their suitability for industrial applications. This paper examines the corrosion behavior of three different bismuth telluride alloys prepared by induction melting: pristine Bi<sub>2</sub>Te<sub>3</sub>, n-type Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub>, and p-type Bi<sub>0.6</sub>Sb<sub>1.4</sub>Te<sub>3</sub>. The electrochemical response of the samples is tested in 3.5 wt% NaCl solution at room temperature. Potentiodynamic polarization curves (Tafel plots) revealed that the n-type sample formed a passive layer compared to the pristine and the p-type samples, which showed pitting corrosion. The different trends observed in the samples were related to their evolved microstructures, where fingerprint-like features in the pristine and the p-type samples showed high susceptibility to pitting corrosion. In contrast, a unique needle-like microstructure of the n-type samples acted as nucleation sites for passive layer formation causing higher corrosion resistance in this sample.</div> <h2>Other Information</h2> <p>Published in: Materials Characterization<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br> See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.matchar.2023.112987" target="_blank">https://dx.doi.org/10.1016/j.matchar.2023.112987</a></p>2023-08-01T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.matchar.2023.112987https://figshare.com/articles/journal_contribution/Microstructural_effect_on_the_corrosion_behavior_of_n-_and_p-type_bismuth_tellurides_fabricated_by_induction_melting/25107674CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/251076742023-08-01T00:00:00Z |
| spellingShingle | Microstructural effect on the corrosion behavior of n- and p-type bismuth tellurides fabricated by induction melting Farah M. El-Makaty (14157090) Engineering Mechanical engineering Physical sciences Condensed matter physics Corrosion Induction melting Bismuth telluride Microstructure |
| status_str | publishedVersion |
| title | Microstructural effect on the corrosion behavior of n- and p-type bismuth tellurides fabricated by induction melting |
| title_full | Microstructural effect on the corrosion behavior of n- and p-type bismuth tellurides fabricated by induction melting |
| title_fullStr | Microstructural effect on the corrosion behavior of n- and p-type bismuth tellurides fabricated by induction melting |
| title_full_unstemmed | Microstructural effect on the corrosion behavior of n- and p-type bismuth tellurides fabricated by induction melting |
| title_short | Microstructural effect on the corrosion behavior of n- and p-type bismuth tellurides fabricated by induction melting |
| title_sort | Microstructural effect on the corrosion behavior of n- and p-type bismuth tellurides fabricated by induction melting |
| topic | Engineering Mechanical engineering Physical sciences Condensed matter physics Corrosion Induction melting Bismuth telluride Microstructure |