New experimental studies on the phase relationship of the Bi–Pb–Te system
Knowledge of the phase relationships is crucial in developing thermoelectric materials and allows a better understanding of the properties of the relevant systems. In the present work, we present the liquidus projection of the Bi-Pb-Te system and phase equilibria of the BiTe-PbTe-Bi2Te3 portion at 4...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127522010061 |
| _version_ | 1828266182971490304 |
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| author | Dandan Huang Dechen Xia Tianfan Ye Toyohisa Fujita |
| author_facet | Dandan Huang Dechen Xia Tianfan Ye Toyohisa Fujita |
| author_sort | Dandan Huang |
| collection | DOAJ |
| description | Knowledge of the phase relationships is crucial in developing thermoelectric materials and allows a better understanding of the properties of the relevant systems. In the present work, we present the liquidus projection of the Bi-Pb-Te system and phase equilibria of the BiTe-PbTe-Bi2Te3 portion at 400 and 520 °C. Alloys were prepared by melting high-purity elements in cleaned quartz tubes and their microstructures were characterized by scanning electron microscopy, electron probe microanalysis, wavelength-dispersive X-ray spectrometer, X-ray diffractometry and differential scanning calorimetry. The binary compound BiTe extends up to 16.7 at.% Pb along BiTe-PbTe at 520 °C. The solubilities of Bi in PbTe were established to be 3.6, 3.8 and 10.8 at.% at 360, 400 and 520 °C, respectively. This work will help to understand the microstructure evolution during preparation and service and promote the designing of the Bi–Pb–Te-based high-performance materials. |
| first_indexed | 2024-04-13T04:49:35Z |
| format | Article |
| id | doaj.art-4274915b5d6e49a997f8b4a9a1a8ccf1 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-13T04:49:35Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-4274915b5d6e49a997f8b4a9a1a8ccf12022-12-22T03:01:44ZengElsevierMaterials & Design0264-12752022-12-01224111384New experimental studies on the phase relationship of the Bi–Pb–Te systemDandan Huang0Dechen Xia1Tianfan Ye2Toyohisa Fujita3School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning 530004, China; Corresponding author at: School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning 530004, ChinaKnowledge of the phase relationships is crucial in developing thermoelectric materials and allows a better understanding of the properties of the relevant systems. In the present work, we present the liquidus projection of the Bi-Pb-Te system and phase equilibria of the BiTe-PbTe-Bi2Te3 portion at 400 and 520 °C. Alloys were prepared by melting high-purity elements in cleaned quartz tubes and their microstructures were characterized by scanning electron microscopy, electron probe microanalysis, wavelength-dispersive X-ray spectrometer, X-ray diffractometry and differential scanning calorimetry. The binary compound BiTe extends up to 16.7 at.% Pb along BiTe-PbTe at 520 °C. The solubilities of Bi in PbTe were established to be 3.6, 3.8 and 10.8 at.% at 360, 400 and 520 °C, respectively. This work will help to understand the microstructure evolution during preparation and service and promote the designing of the Bi–Pb–Te-based high-performance materials.http://www.sciencedirect.com/science/article/pii/S0264127522010061Bi–Pb–TePhase diagramLiquidus projectionExperimental investigationThermoelectric materials system |
| spellingShingle | Dandan Huang Dechen Xia Tianfan Ye Toyohisa Fujita New experimental studies on the phase relationship of the Bi–Pb–Te system Materials & Design Bi–Pb–Te Phase diagram Liquidus projection Experimental investigation Thermoelectric materials system |
| title | New experimental studies on the phase relationship of the Bi–Pb–Te system |
| title_full | New experimental studies on the phase relationship of the Bi–Pb–Te system |
| title_fullStr | New experimental studies on the phase relationship of the Bi–Pb–Te system |
| title_full_unstemmed | New experimental studies on the phase relationship of the Bi–Pb–Te system |
| title_short | New experimental studies on the phase relationship of the Bi–Pb–Te system |
| title_sort | new experimental studies on the phase relationship of the bi pb te system |
| topic | Bi–Pb–Te Phase diagram Liquidus projection Experimental investigation Thermoelectric materials system |
| url | http://www.sciencedirect.com/science/article/pii/S0264127522010061 |
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