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An investigation on Structure and Electrical Conductivity of Sm 0.5− x Gd x Sr 0.5 CoO 3−δ
Author(s) -
Zhou Fen,
Zhong Chongying,
Song Xiwen,
Hao Xihong,
An Shengli
Publication year - 2010
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03593.x
Subject(s) - electrical resistivity and conductivity , orthorhombic crystal system , calcination , analytical chemistry (journal) , perovskite (structure) , materials science , phase (matter) , conductivity , mineralogy , crystal structure , chemistry , crystallography , physics , organic chemistry , chromatography , catalysis , quantum mechanics , biochemistry
Sm 0.5− x Gd x Sr 0.5 CoO 3−δ (SGSC, x =0, 0.1, 0.2, 0.3, 0.4, 0.5) powders were synthesized by a solution‐combustion method. SGSC formed the major perovskite phase with an orthorhombic symmetry after calcined at 1200°C. The electrical measurements indicated that the Gd 3+ content have a strong influence on the electrical conductivities of SGSC. It was found that the electrical conductivities of SGSC was firstly increased then decreased as the Gd 3+ content changed from 0 to 0.5. The highest electrical conductivity with a value 1820 S/cm was obtained when the amount of Gd reached to 0.2.