Thermoelectric properties of nanosized Ca1-x Smx MnO3 (0.01≪x≪0.05), synthesised by co-precipitation technique

Author

Sanmathi, C.S. ; Retoux, R. ; Noudem, J.G.

Author_Institution

CRISMAT-ENSICAEN, CNRS, Caen

fYear

2007

fDate

3-7 June 2007

Firstpage

171

Lastpage

174

Abstract

Nanopowders of Ca_1-xSm_xMnO₃ (0.01<x<0.05) (CSM) were prepared by chemical co-precipitation technique. They were characterized and studied by X-ray diffraction (XRD) and transmission electron microscopy (TEM). We demonstrate that the nano-crystalline CSM phase having grain size of 60-70 nm can be prepared by calcination at 1073 K for 6 h in air. The obtained nanopowders were pressed, sintered at 1473 K for 24 hrs to evaluate their thermoelectrical properties. The Influence of the sintering temperature on thermoelectric property of the CSM powders were studied.

Keywords

X-ray diffraction; calcination; calcium compounds; grain size; nanostructured materials; samarium compounds; sintering; thermoelectricity; transmission electron microscopy; Ca_1-xSm_xMnO₃; X-ray diffraction; calcination; chemical co-precipitation technique; grain size; nanopowders; sintering temperature; temperature 1073 K; temperature 1473 K; thermoelectrical properties; time 24 hr; time 6 h; transmission electron microscopy; Calcination; Chemicals; Grain size; Nanoparticles; Powders; Temperature; Thermoelectricity; Transmission electron microscopy; X-ray diffraction; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermoelectrics, 2007. ICT 2007. 26th International Conference on

Conference_Location

Jeju Island

ISSN

1094-2734

Print_ISBN

978-1-4244-2262-3

Electronic_ISBN

1094-2734

Type

conf

DOI

10.1109/ICT.2007.4569450

Filename

4569450