Preparation and properties of ZnSb thermoelectric material through mechanical-alloying and Spark Plasma Sintering - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Chemical Engineering Journal Année : 2016

Preparation and properties of ZnSb thermoelectric material through mechanical-alloying and Spark Plasma Sintering

R. Pothin
  • Fonction : Auteur
Alexandre Berche
  • Fonction : Auteur
D. Granier
F. Rouessac
  • Fonction : Auteur
P. Jund

Résumé

Mechanical alloying was used in order to synthesize nanocrystallized ZnSb powder. It has been shown that after 3 h of milling and with an excess of zinc in the mixture of Zn + Sb powder, the ZnSb phase was obtained with crystallites size of 40 nm. This powder was characterized by X-ray diffraction using Rietveld refinement and differential thermal analysis before being sintered by Spark Plasma Sintering. We also present thermoelectric properties of ZnSb and a comparison is made with a solidified ingot of ZnSb. Thanks to our method of synthesis, the electrical properties (power factor) of ZnSb are stable in the temperatures range (300–700 K) and very close to the ones of Zn4Sb3 which is the best thermoelectric material so far in the Zn–Sb system.
Fichier non déposé

Dates et versions

hal-01312757 , version 1 (09-05-2016)

Identifiants

Citer

R. Pothin, R.M. Ayral, Alexandre Berche, D. Granier, F. Rouessac, et al.. Preparation and properties of ZnSb thermoelectric material through mechanical-alloying and Spark Plasma Sintering. Chemical Engineering Journal, 2016, 299, pp.126-134. ⟨10.1016/j.cej.2016.04.063⟩. ⟨hal-01312757⟩
57 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More