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Microwave synthesis, microstructure, and thermoelectric properties of Zr substituted ZrxTi1-xNiSn half-Heusler bulks
Anhui Univ Technol, CHN.
Anhui Univ Technol, CHN.
Anhui Univ Technol, CHN.
Anhui Univ Technol, CHN.
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2017 (English)In: Materials letters (General ed.), ISSN 0167-577X, E-ISSN 1873-4979, Vol. 201, 189-193 p.Article in journal (Refereed) Published
Abstract [en]

The half-Fleusler thermoelectric bulks ZrxTi1-xNiSn (x = 0.1, 0.2, 0.3, 0.4) were rapidly prepared by microwave heating. The phase composition and microstructure were characterized by X-ray diffractometer (XRD) and scanning electron microscopy (SEM). The electrical and thermal properties were measured by Seebeck coefficient/resistance analysis system (S/RAs) and laser flash thermal analyzer (LFT). The point defects came from Zr-substitution and the in-situ nanostructure attributed to microwave sintering were found to lead to special microstructure and excellent thermal performance. The grain size of Zr0.3Ti0.7NiSn is similar to 10 mu m. The in-situ nanoscale pores and inclusions are about 300-500 nm. The highest ZT 0.60 for Zr0.3Ti0.7NiSn was achieved at 673 K.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2017. Vol. 201, 189-193 p.
Keyword [en]
Half-Heusler, Zr-substitution, Microwave, Microstructure, Thermal properties
National Category
Other Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-14664DOI: 10.1016/j.matlet.2017.05.023ISI: 000402359900048OAI: oai:DiVA.org:bth-14664DiVA: diva2:1113704
Available from: 2017-06-22 Created: 2017-06-22 Last updated: 2017-06-22

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CiteExportLink to record
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