Title :
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
Abstract :
Nanopowders of Ca1-xSmxMnO3 (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; Ca1-xSmxMnO3; 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;
Conference_Titel :
Thermoelectrics, 2007. ICT 2007. 26th International Conference on
Conference_Location :
Jeju Island
Print_ISBN :
978-1-4244-2262-3
Electronic_ISBN :
1094-2734
DOI :
10.1109/ICT.2007.4569450
