Influence of the addition of Half-Heusler nanoparticles on the thermoelectrical properties of an N-type magnesium–silicon–tin alloy. (15th July 2015)

• Record Type: Journal Article
• Authors: Bernard-Granger, Guillaume; Vracar, Radivoje; Navone, Christelle; Leforestier, Jean; Boidot, Mathieu; Carrete, Jesús; Deniau, Benoit; Simon, Julia
• Is Part Of: Scripta materialia. Volume 104(2015)
• Page Start: 5
• Page End: 8
• Publication Date: 2015-07-15
• Subjects: Thermoelectric materials -- Spark plasma sintering -- Transmission electron microscopy -- Magnesium–silicon–tin alloys; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.03.007
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : The addition of 1.7 vol.% of MgCuSn Half-Heusler nanoparticles and the optimization of the size/concentration of nanometer-sized inclusions/nodules homogeneously dispersed in the sintered microstructure are thought to reduce strongly the lattice-thermal conductivity of an N-type polycrystalline Mg2 Si x Sn1 − x thermoelectrical material. Accordingly the dimensionless figure of merit (ZT) approaches 1.3–1.4 at 510 °C.