Synthesis and Thermoelectric Properties of Ni-Doped ZrCoSb Half-Heusler Compounds
The Ni-doped ZrCo1−xNixSb half-Heusler compounds were prepared by arc-melting and spark plasma sintering technology. X-ray diffraction analysis results showed that all samples were crystallized in a half-Heusler phase. Thermoelectric properties of ZrCo1−xNixSb compounds were measured from room tempe...
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MDPI AG
2018-01-01
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| Series: | Metals |
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| Online Access: | http://www.mdpi.com/2075-4701/8/1/61 |
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| author | Degang Zhao Lin Wang Lin Bo Di Wu |
| author_facet | Degang Zhao Lin Wang Lin Bo Di Wu |
| author_sort | Degang Zhao |
| collection | DOAJ |
| description | The Ni-doped ZrCo1−xNixSb half-Heusler compounds were prepared by arc-melting and spark plasma sintering technology. X-ray diffraction analysis results showed that all samples were crystallized in a half-Heusler phase. Thermoelectric properties of ZrCo1−xNixSb compounds were measured from room temperature to 850 K. The electrical conductivity and the absolute value of Seebeck coefficient increased with the Ni-doping content increasing due to the Ni substitution at Co. sites. The lattice thermal conductivity of ZrCo1−xNixSb samples was depressed dramatically because of the acoustic phonon scattering and point defect scattering. The figure of merit of ZrCo1−xNixSb compounds was improved due to the decreased thermal conductivity and improved power factor. The maximum ZT value of 0.24 was achieved for ZrCo0.92Ni0.08Sb sample at 850 K. |
| first_indexed | 2024-12-11T00:34:58Z |
| format | Article |
| id | doaj.art-08fc129c0abc461495633670564f9447 |
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| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-12-11T00:34:58Z |
| publishDate | 2018-01-01 |
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| series | Metals |
| spelling | doaj.art-08fc129c0abc461495633670564f94472022-12-22T01:27:11ZengMDPI AGMetals2075-47012018-01-01816110.3390/met8010061met8010061Synthesis and Thermoelectric Properties of Ni-Doped ZrCoSb Half-Heusler CompoundsDegang Zhao0Lin Wang1Lin Bo2Di Wu3School of Materials Science and Engineering, University of Jinan, Jinan 250022, ChinaSchool of Materials Science and Engineering, University of Jinan, Jinan 250022, ChinaSchool of Materials Science and Engineering, University of Jinan, Jinan 250022, ChinaSchool of Materials Science and Engineering, University of Jinan, Jinan 250022, ChinaThe Ni-doped ZrCo1−xNixSb half-Heusler compounds were prepared by arc-melting and spark plasma sintering technology. X-ray diffraction analysis results showed that all samples were crystallized in a half-Heusler phase. Thermoelectric properties of ZrCo1−xNixSb compounds were measured from room temperature to 850 K. The electrical conductivity and the absolute value of Seebeck coefficient increased with the Ni-doping content increasing due to the Ni substitution at Co. sites. The lattice thermal conductivity of ZrCo1−xNixSb samples was depressed dramatically because of the acoustic phonon scattering and point defect scattering. The figure of merit of ZrCo1−xNixSb compounds was improved due to the decreased thermal conductivity and improved power factor. The maximum ZT value of 0.24 was achieved for ZrCo0.92Ni0.08Sb sample at 850 K.http://www.mdpi.com/2075-4701/8/1/61half-Heusler compoundthermoelectric propertyZrCoSbNi-doping |
| spellingShingle | Degang Zhao Lin Wang Lin Bo Di Wu Synthesis and Thermoelectric Properties of Ni-Doped ZrCoSb Half-Heusler Compounds Metals half-Heusler compound thermoelectric property ZrCoSb Ni-doping |
| title | Synthesis and Thermoelectric Properties of Ni-Doped ZrCoSb Half-Heusler Compounds |
| title_full | Synthesis and Thermoelectric Properties of Ni-Doped ZrCoSb Half-Heusler Compounds |
| title_fullStr | Synthesis and Thermoelectric Properties of Ni-Doped ZrCoSb Half-Heusler Compounds |
| title_full_unstemmed | Synthesis and Thermoelectric Properties of Ni-Doped ZrCoSb Half-Heusler Compounds |
| title_short | Synthesis and Thermoelectric Properties of Ni-Doped ZrCoSb Half-Heusler Compounds |
| title_sort | synthesis and thermoelectric properties of ni doped zrcosb half heusler compounds |
| topic | half-Heusler compound thermoelectric property ZrCoSb Ni-doping |
| url | http://www.mdpi.com/2075-4701/8/1/61 |
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