Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications
<p dir="ltr">This work intends to investigate the optimum sintering method and temperature that can improve the efficiency of bismuth telluride cold compact pellets, for the thermoelectric applications. Different p-type and n-type bismuth telluride cold compact pellets were treated u...
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| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , , , , , , , |
| منشور في: |
2021
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| الموضوعات: | |
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| _version_ | 1864513545440329728 |
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| author | Farheen F. Jaldurgam (17302762) |
| author2 | Zubair Ahmad (4345072) Farid Touati (1556026) Abdulla Al Ashraf (17302765) Abdul Shakoor (5991137) Jolly Bhadra (14147823) Noora J. Al-Thani (17017695) Dong Suk Han (1748989) Talal Altahtamouni (14779153) |
| author2_role | author author author author author author author author |
| author_facet | Farheen F. Jaldurgam (17302762) Zubair Ahmad (4345072) Farid Touati (1556026) Abdulla Al Ashraf (17302765) Abdul Shakoor (5991137) Jolly Bhadra (14147823) Noora J. Al-Thani (17017695) Dong Suk Han (1748989) Talal Altahtamouni (14779153) |
| author_role | author |
| dc.creator.none.fl_str_mv | Farheen F. Jaldurgam (17302762) Zubair Ahmad (4345072) Farid Touati (1556026) Abdulla Al Ashraf (17302765) Abdul Shakoor (5991137) Jolly Bhadra (14147823) Noora J. Al-Thani (17017695) Dong Suk Han (1748989) Talal Altahtamouni (14779153) |
| dc.date.none.fl_str_mv | 2021-10-05T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.jallcom.2021.160256 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Optimum_sintering_method_and_temperature_for_cold_compact_Bismuth_Telluride_pellets_for_thermoelectric_applications/24459091 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Electrical engineering Fluid mechanics and thermal engineering Materials engineering Bismuth telluride Thermoelectric Microwave sintering Conventional sintering Tube sintering Broadband dielectric broadband spectroscopy |
| dc.title.none.fl_str_mv | Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">This work intends to investigate the optimum sintering method and temperature that can improve the efficiency of bismuth telluride cold compact pellets, for the thermoelectric applications. Different p-type and n-type bismuth telluride cold compact pellets were treated using three different sintering techniques and conditions: pressure less (conventional), microwave, and tube (using argon environment) at temperatures 250 °C, 300 °C, 350 °C, and 400 °C. The structural, microscopic, electron transport, thermal, and dielectric properties of the pristine and sintered samples were examined. Broadband dielectric spectroscopy was performed to extract a detailed picture of the dielectric properties of the samples. Even though each type of sintering had its own merits and demerits, the optimum conditions for enhanced electric and thermal features were found in microwave furnace followed by tube and conventional. Low thermal conductivity of 0.4 W/m/K was observed in the samples sintered at 250 °C while the increase in sintering temperature from 250 °C to 300 °C improved the crystallinity of the material. Moreover, the crystal structure of the bismuth telluride altered with the occurrence of higher oxidation leading to the formation of high bismuth telluride oxide phases at sintering temperatures above 300 °C, more dominantly in the n-type samples.</p><h2>Other Information</h2><p dir="ltr">Published in: Journal of Alloys and Compounds<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.jallcom.2021.160256" target="_blank">https://dx.doi.org/10.1016/j.jallcom.2021.160256</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_6eb274f2c707e429ebf2e86bc5f87c86 |
| identifier_str_mv | 10.1016/j.jallcom.2021.160256 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24459091 |
| publishDate | 2021 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applicationsFarheen F. Jaldurgam (17302762)Zubair Ahmad (4345072)Farid Touati (1556026)Abdulla Al Ashraf (17302765)Abdul Shakoor (5991137)Jolly Bhadra (14147823)Noora J. Al-Thani (17017695)Dong Suk Han (1748989)Talal Altahtamouni (14779153)EngineeringElectrical engineeringFluid mechanics and thermal engineeringMaterials engineeringBismuth tellurideThermoelectricMicrowave sinteringConventional sinteringTube sinteringBroadband dielectric broadband spectroscopy<p dir="ltr">This work intends to investigate the optimum sintering method and temperature that can improve the efficiency of bismuth telluride cold compact pellets, for the thermoelectric applications. Different p-type and n-type bismuth telluride cold compact pellets were treated using three different sintering techniques and conditions: pressure less (conventional), microwave, and tube (using argon environment) at temperatures 250 °C, 300 °C, 350 °C, and 400 °C. The structural, microscopic, electron transport, thermal, and dielectric properties of the pristine and sintered samples were examined. Broadband dielectric spectroscopy was performed to extract a detailed picture of the dielectric properties of the samples. Even though each type of sintering had its own merits and demerits, the optimum conditions for enhanced electric and thermal features were found in microwave furnace followed by tube and conventional. Low thermal conductivity of 0.4 W/m/K was observed in the samples sintered at 250 °C while the increase in sintering temperature from 250 °C to 300 °C improved the crystallinity of the material. Moreover, the crystal structure of the bismuth telluride altered with the occurrence of higher oxidation leading to the formation of high bismuth telluride oxide phases at sintering temperatures above 300 °C, more dominantly in the n-type samples.</p><h2>Other Information</h2><p dir="ltr">Published in: Journal of Alloys and Compounds<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.jallcom.2021.160256" target="_blank">https://dx.doi.org/10.1016/j.jallcom.2021.160256</a></p>2021-10-05T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.jallcom.2021.160256https://figshare.com/articles/journal_contribution/Optimum_sintering_method_and_temperature_for_cold_compact_Bismuth_Telluride_pellets_for_thermoelectric_applications/24459091CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/244590912021-10-05T00:00:00Z |
| spellingShingle | Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications Farheen F. Jaldurgam (17302762) Engineering Electrical engineering Fluid mechanics and thermal engineering Materials engineering Bismuth telluride Thermoelectric Microwave sintering Conventional sintering Tube sintering Broadband dielectric broadband spectroscopy |
| status_str | publishedVersion |
| title | Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications |
| title_full | Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications |
| title_fullStr | Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications |
| title_full_unstemmed | Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications |
| title_short | Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications |
| title_sort | Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications |
| topic | Engineering Electrical engineering Fluid mechanics and thermal engineering Materials engineering Bismuth telluride Thermoelectric Microwave sintering Conventional sintering Tube sintering Broadband dielectric broadband spectroscopy |