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Up-scaled synthesis process of sulphur-based thermoelectric materials

Barbier, T., Martinet, S., Lemoine, P., Eriksson, M., Gilmas, M., Hug, E., Guelou, G., Vaqueiro, P. ORCID:, Powell, A. V. and Guilmeau, E. (2016) Up-scaled synthesis process of sulphur-based thermoelectric materials. RSC Advances, 6 (12). pp. 10044-10053. ISSN 2046-2069

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To link to this item DOI: 10.1039/C5RA23218J


The scale up of Spark Plasma Sintering (SPS) for the consolidation of large square monoliths (50 × 50 × 3 mm3) of thermoelectric material is demonstrated and the properties of the fabricated samples compared with those from laboratory scale SPS. The SPS processing of n-type TiS2 and p-type Cu10.4Ni1.6Sb4S13 produces highly dense compacts of phase pure material. Electrical and thermal transport property measurements reveal that the thermoelectric performance of the consolidated n- and p-type materials is comparable with that of material processed using laboratory scale SPS, with ZT values that approach 0.8 and 0.35 at 700 K for Cu10.4Ni1.6Sb4S13 and TiS2, respectively. Mechanical properties of the consolidated materials shows that large-scale SPS processing produces highly homogeneous materials with hardness and elastic moduli that deviate little from values obtained on materials processed on the laboratory scale.

Item Type:Article
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
Interdisciplinary centres and themes > Energy Research
Interdisciplinary centres and themes > Chemical Analysis Facility (CAF) > Xray (CAF)
ID Code:52256
Publisher:Royal Society of Chemistry

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