Structural Transformations in (Bi, Sb)2Te3 Solid Solutions Grown by Spark Plasma Sintering
We have studied the dependence of the thermoelectric properties of the bulk (Bi,Sb)2Te3 material on the temperature of spark plasma sintering (SPS). For analysis of the experimental results we took into account the regularities of structure formation in the material. The average crystallite size dec...
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| Veröffentlicht in: | Journal of physics. Conference series 2019-12, Vol.1347 (1) |
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| creator | Bogomolov, D I Bublik, V T Ivanov, A A Voronov, M V Lavrent'ev, M G Panchenko, V P Parkhomenko, Yu N Tabachkova, N Yu |
| description | We have studied the dependence of the thermoelectric properties of the bulk (Bi,Sb)2Te3 material on the temperature of spark plasma sintering (SPS). For analysis of the experimental results we took into account the regularities of structure formation in the material. The average crystallite size decreases with an increase in the SPS temperature to above 400 °C. Transmission electron microscopy showed that at above 400 °C the bulk and boundaries of the initial grains that are several micrometers in size contain a large number of nanosized grains (approx 10 - 20 nm) having the same composition. We show that the dependence of the thermoelectric properties of the material on SPS temperature correlates with changes in the fine structure of the material which is controlled by the redistribution of the intrinsic point defects. Our results suggest that, along with the well-known nanostructure formation processes, there is one more high-temperature self-organizing process of the formation of the nanostructural material based on the redistribution and change in the form of occurrence of the nonequilibrium point defects. This information can be used to broaden the possibilities of controlling the properties of the bulk thermoelectric material on the basis of (Bi,Sb)2Te3. |
| doi_str_mv | 10.1088/1742-6596/1347/1/012120 |
| format | Article |
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For analysis of the experimental results we took into account the regularities of structure formation in the material. The average crystallite size decreases with an increase in the SPS temperature to above 400 °C. Transmission electron microscopy showed that at above 400 °C the bulk and boundaries of the initial grains that are several micrometers in size contain a large number of nanosized grains (approx 10 - 20 nm) having the same composition. We show that the dependence of the thermoelectric properties of the material on SPS temperature correlates with changes in the fine structure of the material which is controlled by the redistribution of the intrinsic point defects. Our results suggest that, along with the well-known nanostructure formation processes, there is one more high-temperature self-organizing process of the formation of the nanostructural material based on the redistribution and change in the form of occurrence of the nonequilibrium point defects. This information can be used to broaden the possibilities of controlling the properties of the bulk thermoelectric material on the basis of (Bi,Sb)2Te3.</description><identifier>ISSN: 1742-6588</identifier><identifier>EISSN: 1742-6596</identifier><identifier>DOI: 10.1088/1742-6596/1347/1/012120</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>Antimony ; Bismuth ; Crystal defects ; Crystallites ; Fine structure ; High temperature ; Micrometers ; Physics ; Plasma sintering ; Point defects ; Solid solutions ; Spark plasma sintering ; Thermoelectric materials ; Thermoelectricity</subject><ispartof>Journal of physics. Conference series, 2019-12, Vol.1347 (1)</ispartof><rights>Published under licence by IOP Publishing Ltd</rights><rights>2019. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/1742-6596/1347/1/012120/pdf$$EPDF$$P50$$Giop$$Hfree_for_read</linktopdf><link.rule.ids>314,776,780,27901,27902,38845,38867,53815,53842</link.rule.ids></links><search><creatorcontrib>Bogomolov, D I</creatorcontrib><creatorcontrib>Bublik, V T</creatorcontrib><creatorcontrib>Ivanov, A A</creatorcontrib><creatorcontrib>Voronov, M V</creatorcontrib><creatorcontrib>Lavrent'ev, M G</creatorcontrib><creatorcontrib>Panchenko, V P</creatorcontrib><creatorcontrib>Parkhomenko, Yu N</creatorcontrib><creatorcontrib>Tabachkova, N Yu</creatorcontrib><title>Structural Transformations in (Bi, Sb)2Te3 Solid Solutions Grown by Spark Plasma Sintering</title><title>Journal of physics. Conference series</title><addtitle>J. Phys.: Conf. Ser</addtitle><description>We have studied the dependence of the thermoelectric properties of the bulk (Bi,Sb)2Te3 material on the temperature of spark plasma sintering (SPS). For analysis of the experimental results we took into account the regularities of structure formation in the material. The average crystallite size decreases with an increase in the SPS temperature to above 400 °C. Transmission electron microscopy showed that at above 400 °C the bulk and boundaries of the initial grains that are several micrometers in size contain a large number of nanosized grains (approx 10 - 20 nm) having the same composition. We show that the dependence of the thermoelectric properties of the material on SPS temperature correlates with changes in the fine structure of the material which is controlled by the redistribution of the intrinsic point defects. Our results suggest that, along with the well-known nanostructure formation processes, there is one more high-temperature self-organizing process of the formation of the nanostructural material based on the redistribution and change in the form of occurrence of the nonequilibrium point defects. This information can be used to broaden the possibilities of controlling the properties of the bulk thermoelectric material on the basis of (Bi,Sb)2Te3.</description><subject>Antimony</subject><subject>Bismuth</subject><subject>Crystal defects</subject><subject>Crystallites</subject><subject>Fine structure</subject><subject>High temperature</subject><subject>Micrometers</subject><subject>Physics</subject><subject>Plasma sintering</subject><subject>Point defects</subject><subject>Solid solutions</subject><subject>Spark plasma sintering</subject><subject>Thermoelectric materials</subject><subject>Thermoelectricity</subject><issn>1742-6588</issn><issn>1742-6596</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><sourceid>BENPR</sourceid><recordid>eNptkN9LwzAQgIMoOKd_gwFfVKzNjzbJHrXoVAYOOl98CemaSGbX1qRF_O9NqUwE7-Hu4L67gw-AU4yuMRIixjwhEUtnLMY04TGOESaYoD0w2U32d70Qh-DI-w1CNASfgNe8c_26652q4Mqp2pvGbVVnm9pDW8PzW3sF8-KCrDSFeVPZcsj9OJ-75rOGxRfMW-Xe4bJSfqtgbutOO1u_HYMDoyqvT37qFLzc362yh2jxPH_MbhaRJYShSJGUGo0KipKSF0yIhKdmbbjBQq2pThgiKU8pJpwmJTFEiwAhXZCiFLpAjE7B2Xi3dc1Hr30nN03v6vBSkjSgbBZ0BIqOlG3aXwAjOUiUgx45qJKDRInlKDFsXf6z9bTM8r-gbEtDvwErRnC9</recordid><startdate>20191201</startdate><enddate>20191201</enddate><creator>Bogomolov, D I</creator><creator>Bublik, V T</creator><creator>Ivanov, A A</creator><creator>Voronov, M V</creator><creator>Lavrent'ev, M G</creator><creator>Panchenko, V P</creator><creator>Parkhomenko, Yu N</creator><creator>Tabachkova, N Yu</creator><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20191201</creationdate><title>Structural Transformations in (Bi, Sb)2Te3 Solid Solutions Grown by Spark Plasma Sintering</title><author>Bogomolov, D I ; Bublik, V T ; Ivanov, A A ; Voronov, M V ; Lavrent'ev, M G ; Panchenko, V P ; Parkhomenko, Yu N ; Tabachkova, N Yu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i2260-a253fe0b304d7b688475fcf7f18ac3e4602575312734d2f2e8b680eb2bd8eb063</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Antimony</topic><topic>Bismuth</topic><topic>Crystal defects</topic><topic>Crystallites</topic><topic>Fine structure</topic><topic>High temperature</topic><topic>Micrometers</topic><topic>Physics</topic><topic>Plasma sintering</topic><topic>Point defects</topic><topic>Solid solutions</topic><topic>Spark plasma sintering</topic><topic>Thermoelectric materials</topic><topic>Thermoelectricity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bogomolov, D I</creatorcontrib><creatorcontrib>Bublik, V T</creatorcontrib><creatorcontrib>Ivanov, A A</creatorcontrib><creatorcontrib>Voronov, M V</creatorcontrib><creatorcontrib>Lavrent'ev, M G</creatorcontrib><creatorcontrib>Panchenko, V P</creatorcontrib><creatorcontrib>Parkhomenko, Yu N</creatorcontrib><creatorcontrib>Tabachkova, N Yu</creatorcontrib><collection>IOP Publishing Free Content</collection><collection>IOPscience (Open Access)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Journal of physics. Conference series</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bogomolov, D I</au><au>Bublik, V T</au><au>Ivanov, A A</au><au>Voronov, M V</au><au>Lavrent'ev, M G</au><au>Panchenko, V P</au><au>Parkhomenko, Yu N</au><au>Tabachkova, N Yu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Structural Transformations in (Bi, Sb)2Te3 Solid Solutions Grown by Spark Plasma Sintering</atitle><jtitle>Journal of physics. Conference series</jtitle><addtitle>J. Phys.: Conf. Ser</addtitle><date>2019-12-01</date><risdate>2019</risdate><volume>1347</volume><issue>1</issue><issn>1742-6588</issn><eissn>1742-6596</eissn><abstract>We have studied the dependence of the thermoelectric properties of the bulk (Bi,Sb)2Te3 material on the temperature of spark plasma sintering (SPS). For analysis of the experimental results we took into account the regularities of structure formation in the material. The average crystallite size decreases with an increase in the SPS temperature to above 400 °C. Transmission electron microscopy showed that at above 400 °C the bulk and boundaries of the initial grains that are several micrometers in size contain a large number of nanosized grains (approx 10 - 20 nm) having the same composition. We show that the dependence of the thermoelectric properties of the material on SPS temperature correlates with changes in the fine structure of the material which is controlled by the redistribution of the intrinsic point defects. Our results suggest that, along with the well-known nanostructure formation processes, there is one more high-temperature self-organizing process of the formation of the nanostructural material based on the redistribution and change in the form of occurrence of the nonequilibrium point defects. This information can be used to broaden the possibilities of controlling the properties of the bulk thermoelectric material on the basis of (Bi,Sb)2Te3.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/1742-6596/1347/1/012120</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Antimony Bismuth Crystal defects Crystallites Fine structure High temperature Micrometers Physics Plasma sintering Point defects Solid solutions Spark plasma sintering Thermoelectric materials Thermoelectricity |
| title | Structural Transformations in (Bi, Sb)2Te3 Solid Solutions Grown by Spark Plasma Sintering |
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