Influence of the addition of HfO2 particles on the thermoelectric properties of an N-type half-Heusler alloy sintered by spark plasma sintering

An N-type Ti0.5Zr0.5NiSn0.994Sb0.006 powder, synthesized by levitation melting, has been mixed with 1.5 wt% of HfO2 particles and sintered by spark plasma sintering (grain size around 10 μm). Three kinds of nanocrystalline particles have been identified in the sintered microstructure. They are thoug...

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Veröffentlicht in:	Journal of alloys and compounds 2017-06, Vol.709, p.36-41
Hauptverfasser:	Visconti, Alizée, Navone, Christelle, Leforestier, Jean, Mingo, Natalio, Bernard-Granger, Guillaume
Format:	Artikel
Sprache:	eng
Schlagworte:	Figure of merit Hafnium oxide Half-Heusler alloys Heusler alloys Lattice vibration Levitation melting Microstructure Nanocrystals Plasma sintering Sintering Spark plasma sintering Thermoelectric materials Thermoelectricity Transmission electron microscopy
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