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J. Mater. Sci. Technol. 2010, 26(08) 721-724 DOI:     ISSN: 1005-0302 CN: 21-1315/TG
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Keywords
High-energy ball milling
Perovskite structure
Colossal electroresistance (CER)
Microstructure defect
Authors
CHEN Shun-Sheng
YANG Chang-Beng
LINGFANG -xu
SHAOLONG -tang
PubMed
Article by Chen,S.S
Article by Yang,C.B
Article by Lingfang,.X
Article by Shaolong,.T

Ball Milling Synthesis and Property of Nd0:7Sr0:3MnO3 Manganites

Shunsheng Chen1), Changping Yang1), Lingfang Xu1), Shaolong Tang2)

1) The Provincial Key Laboratory of Piezoelectric Ceramics Materials and Apparatus, Faculty of Physics and Electronic Technology, Hubei University, Wuhan 430062, China
2) Department of Physics, Nanjing University, Nanjing 210093, China

Abstract：

Strontium doped perovskite-type Nd0:7Sr0:3MnO3 ceramics were synthesized completely by high-energy ball milling raw oxides of Nd2O3, SrCO3 and MnO2. The optimal ball milling time and mass ratio of milling balls to raw materials are 4 h and 10:1, respectively. The grain size of as-milled Nd0:7Sr0:3MnO3 ceramics ranges from 51 to 93 nm, and the fine particles contain two phases of crystalline phase and amorphous phase. For the Nd0:7Sr0:3MnO3 synthesized by ball milling and sequent heat treatment, a remarkable colossal electroresistance (CER) effect is observed and the CER ratio reaches 900% at Curie temperature TC when the load voltage increases from 0.1 to 0.8 V.

Keywords： High-energy ball milling   Perovskite structure   Colossal electroresistance (CER)   Microstructure defect  
Received 2009-05-05 Revised 2009-10-16 Online: 2010-08-23 
DOI:
Fund:

the National Natural Science Foundation of China (Grant No. 10774040) and the joint Chinese-Russian Project

Corresponding Authors: Changping Yang
Email: cpyang@hubu.edu.cn
About author:
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