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Effect of heat treatment on electroresistance in Nd0.67Sr0.33MnO3 ceramics by Shunsheng CHEN; Ruilong WANG; Hao WANG; Changping YANG is a Materials Science article available to read on EtoBox.

What is Effect of heat treatment on electroresistance in Nd0.67Sr0.33MnO3 ceramics about?

A remarkable CER (colossal electroresistance) effect was observed in a series of polycrystalline Nd 0.67 Sr 0.33 MnO 3 samples synthesized by high energy ball milling successive heat treatment. The CER ratio increased with increasing heating time and reached 3580% at a low temperature for the Nd 0.67 Sr 0.33 MnO 3 ceramic annealed up to 13 h as measuring current was enhanced from 5 to 500 A. The result showed that the CER effect was strongly dependent on the sample's microstructure, especially on the foreign phases which were gradually developed within grain boundaries when annealing time was more than 3 h.

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Author

Shunsheng CHEN; Ruilong WANG; Hao WANG; Changping YANG

Publisher

Elsevier Science; Elsevier ; The Metallurgical Industry Press; Elsevier BV (ISSN 1002-0721)

Published

2010

Language

EN

Field

Materials Science (Physical Sciences)