Improvement of Thermoelectric Material by Reduction Thermal Conductivity of Sn-doped CuFeO^sub 2^ Delafossite Compound

In this work, the polycrystalline CuFe...Sn...O... (x = 0.005, 0.01, 0.03) were synthesized by a solid state reaction method with sintering temperature at 1323K for 40 hours. The XRD pattern and TGA results showed the crystal structure of hexagonal delafossite-type structure for space group ...(166)...

Full description

Saved in:
Bibliographic Details
Published in:Integrated ferroelectrics 2015-01, Vol.165 (1), p.73
Main Authors: Hongaromkij, Y, Rudradawong, C, Wichainchai, A, Ruttanapun, C
Format: Article
Language:English
Subjects:
Chemical reactions
Crystal structure
Heat conductivity
Polycrystals
Sintering
Solid state physics
Temperature effects
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work, the polycrystalline CuFe...Sn...O... (x = 0.005, 0.01, 0.03) were synthesized by a solid state reaction method with sintering temperature at 1323K for 40 hours. The XRD pattern and TGA results showed the crystal structure of hexagonal delafossite-type structure for space group ...(166). Thermal conductivity was decreased because the large atomic mass of the Sn substituted to the Fe sites of CuFeO... This caused phonon scattering by the point defect of the mass difference between Sn atom and Fe atom. The minimal value of the thermal conductivity was 2.1 W/mK at 573K for Sn = 0.03. (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:1058-4587
1607-8489