Hybrid Flash-SPS of TiNiCu0.05Sn with reduced thermal conductivity

Francesco Gucci; Theo Graves Saunders; Bhuvanesh Srinivasan; François Cheviré; Daniella A. Ferluccio; Jan-Willem G. Bos; Michael J. Reece

doi:10.1016/j.jallcom.2020.155058

Hybrid Flash-SPS of TiNiCu_0.05Sn with reduced thermal conductivity

Francesco Gucci, Theo Graves Saunders, Bhuvanesh Srinivasan, François Cheviré, Daniella A. Ferluccio, Jan-Willem G. Bos, Michael J. Reece

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Abstract

TiNiCu_0·05Sn was sintered using Spark Plasma Sintering (SPS) and a new derivative processing method, hybrid Flash-SPS (hFSPS). The high heating rate achieved (7700 °C/min) produced almost single-phase samples with high density. The sample sintered at 1040 °C showed a higher power factor and a lower thermal conductivity than the SPS sample, resulting in a higher ZT at 350 °C (0.44 vs 0.35).

Original language	English
Article number	155058
Journal	Journal of Alloys and Compounds
Volume	837
Early online date	6 Apr 2020
DOIs	https://doi.org/10.1016/j.jallcom.2020.155058
Publication status	Published - 5 Oct 2020

Keywords

Flash sintering
Half-heusler
Thermal conductivity
Thermoelectric

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2020.155058

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Cite this

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title = "Hybrid Flash-SPS of TiNiCu0.05Sn with reduced thermal conductivity",

abstract = "TiNiCu0·05Sn was sintered using Spark Plasma Sintering (SPS) and a new derivative processing method, hybrid Flash-SPS (hFSPS). The high heating rate achieved (7700 °C/min) produced almost single-phase samples with high density. The sample sintered at 1040 °C showed a higher power factor and a lower thermal conductivity than the SPS sample, resulting in a higher ZT at 350 °C (0.44 vs 0.35).",

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AU - Gucci, Francesco

AU - Saunders, Theo Graves

AU - Srinivasan, Bhuvanesh

AU - Cheviré, François

AU - Ferluccio, Daniella A.

AU - Bos, Jan-Willem G.

AU - Reece, Michael J.

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AB - TiNiCu0·05Sn was sintered using Spark Plasma Sintering (SPS) and a new derivative processing method, hybrid Flash-SPS (hFSPS). The high heating rate achieved (7700 °C/min) produced almost single-phase samples with high density. The sample sintered at 1040 °C showed a higher power factor and a lower thermal conductivity than the SPS sample, resulting in a higher ZT at 350 °C (0.44 vs 0.35).

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KW - Half-heusler

KW - Thermal conductivity

KW - Thermoelectric

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