Optimization of the Consolidation Parameters for Enhanced Thermoelectric Properties of Gr-Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> Nanocomposites
<p dir="ltr">Hot pressing represents a promising consolidation technique for ball-milled bismuth telluride alloys, yet deep investigations are needed to understand its effect on the thermoelectric properties. This paper studies the effect of hot-pressing parameters (temperature and p...
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2024
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| _version_ | 1864513510339248128 |
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| author | Farah El-Makaty (19198006) |
| author2 | Abdel Magid Hamouda (17430999) Anas Abutaha (6503564) Khaled Youssef (10871367) |
| author2_role | author author author |
| author_facet | Farah El-Makaty (19198006) Abdel Magid Hamouda (17430999) Anas Abutaha (6503564) Khaled Youssef (10871367) |
| author_role | author |
| dc.creator.none.fl_str_mv | Farah El-Makaty (19198006) Abdel Magid Hamouda (17430999) Anas Abutaha (6503564) Khaled Youssef (10871367) |
| dc.date.none.fl_str_mv | 2024-01-25T09:00:00Z |
| dc.identifier.none.fl_str_mv | 10.3390/nano14030260 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Optimization_of_the_Consolidation_Parameters_for_Enhanced_Thermoelectric_Properties_of_Gr-Bi_sub_2_sub_Te_sub_2_55_sub_Se_sub_0_45_sub_Nanocomposites/26355040 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Materials engineering Nanotechnology thermoelectric n type mechanical milling hot pressing bismuth telluride nanocomposite |
| dc.title.none.fl_str_mv | Optimization of the Consolidation Parameters for Enhanced Thermoelectric Properties of Gr-Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> Nanocomposites |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">Hot pressing represents a promising consolidation technique for ball-milled bismuth telluride alloys, yet deep investigations are needed to understand its effect on the thermoelectric properties. This paper studies the effect of hot-pressing parameters (temperature and pressure) on the thermoelectric properties of the n-type Gr-Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> nanocomposite. Ultra-high pressure, up to 1.5 GPa, is considered for the first time for consolidating Bi<sub>2</sub>(Te,Se)<sub>3 </sub>alloys. Results from this study show that increasing the temperature leads to changes in chemical composition and causes noticeable grain growth. On the contrary, increasing pressure mainly causes improvements in densification. Overall, increments in these two parameters improve the ZT values, with the temperature parameter having a higher influence. The highest ZT of 0.69 at 160 °C was obtained for the sample hot-pressed at 350 °C and 1 GPa for 5 min, which is indeed an excellent and competitive value when compared with results reported for this n-type Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> composition.</p><h2>Other Information</h2><p dir="ltr">Published in: Nanomaterials<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3390/nano14030260" target="_blank">https://dx.doi.org/10.3390/nano14030260</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_a0b25e2434a3c99bb9e7615ef71b7365 |
| identifier_str_mv | 10.3390/nano14030260 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/26355040 |
| publishDate | 2024 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Optimization of the Consolidation Parameters for Enhanced Thermoelectric Properties of Gr-Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> NanocompositesFarah El-Makaty (19198006)Abdel Magid Hamouda (17430999)Anas Abutaha (6503564)Khaled Youssef (10871367)EngineeringMaterials engineeringNanotechnologythermoelectricn typemechanical millinghot pressingbismuth telluridenanocomposite<p dir="ltr">Hot pressing represents a promising consolidation technique for ball-milled bismuth telluride alloys, yet deep investigations are needed to understand its effect on the thermoelectric properties. This paper studies the effect of hot-pressing parameters (temperature and pressure) on the thermoelectric properties of the n-type Gr-Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> nanocomposite. Ultra-high pressure, up to 1.5 GPa, is considered for the first time for consolidating Bi<sub>2</sub>(Te,Se)<sub>3 </sub>alloys. Results from this study show that increasing the temperature leads to changes in chemical composition and causes noticeable grain growth. On the contrary, increasing pressure mainly causes improvements in densification. Overall, increments in these two parameters improve the ZT values, with the temperature parameter having a higher influence. The highest ZT of 0.69 at 160 °C was obtained for the sample hot-pressed at 350 °C and 1 GPa for 5 min, which is indeed an excellent and competitive value when compared with results reported for this n-type Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> composition.</p><h2>Other Information</h2><p dir="ltr">Published in: Nanomaterials<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3390/nano14030260" target="_blank">https://dx.doi.org/10.3390/nano14030260</a></p>2024-01-25T09:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.3390/nano14030260https://figshare.com/articles/journal_contribution/Optimization_of_the_Consolidation_Parameters_for_Enhanced_Thermoelectric_Properties_of_Gr-Bi_sub_2_sub_Te_sub_2_55_sub_Se_sub_0_45_sub_Nanocomposites/26355040CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/263550402024-01-25T09:00:00Z |
| spellingShingle | Optimization of the Consolidation Parameters for Enhanced Thermoelectric Properties of Gr-Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> Nanocomposites Farah El-Makaty (19198006) Engineering Materials engineering Nanotechnology thermoelectric n type mechanical milling hot pressing bismuth telluride nanocomposite |
| status_str | publishedVersion |
| title | Optimization of the Consolidation Parameters for Enhanced Thermoelectric Properties of Gr-Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> Nanocomposites |
| title_full | Optimization of the Consolidation Parameters for Enhanced Thermoelectric Properties of Gr-Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> Nanocomposites |
| title_fullStr | Optimization of the Consolidation Parameters for Enhanced Thermoelectric Properties of Gr-Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> Nanocomposites |
| title_full_unstemmed | Optimization of the Consolidation Parameters for Enhanced Thermoelectric Properties of Gr-Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> Nanocomposites |
| title_short | Optimization of the Consolidation Parameters for Enhanced Thermoelectric Properties of Gr-Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> Nanocomposites |
| title_sort | Optimization of the Consolidation Parameters for Enhanced Thermoelectric Properties of Gr-Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> Nanocomposites |
| topic | Engineering Materials engineering Nanotechnology thermoelectric n type mechanical milling hot pressing bismuth telluride nanocomposite |