Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2)

被引：15
作者：
Rosic, Milena [1 ]
Kljaljevic, Ljiljana [1 ]
Jordanov, Dragana [1 ]
Stoiljkovic, Milovan [2 ]
Kusigerski, Vladan [3 ]
Spasojevic, Vojislav [3 ]
Matovic, Branko [1 ]
机构：
[1] Univ Belgrade, Vinca, Inst Nucl Sci, Mat Sci Lab, Belgrade 11001, Serbia
[2] Univ Belgrade, Vinca, Inst Nucl Sci, Dept Phys Chem, Belgrade 11001, Serbia
[3] Univ Belgrade, Vinca, Inst Nucl Sci, Lab Theoret & Condensed Matter Phys, Belgrade 11001, Serbia
来源：
CERAMICS INTERNATIONAL | 2015年 / 41卷 / 10期
关键词：
Sintering; X-ray methods; Magnetic properties; Perovskites; RARE-EARTH MANGANATES; PHASE-SEPARATION; TEMPERATURE; MAGNETORESISTANCE;
D O I：
10.1016/j.ceramint.2015.08.041
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nanocrystalline manganites Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, and 0.2) were synthesized by a modified glycine-nitrate procedure and subjected to a systematic investigation regarding the effects of calcination and sintering on their structural, microstructural and magnetic properties. Thermal treatments of the green bodies were carried out by the conventional sintering (CS) method and the effects were monitored by different experimental techniques (XRD, ICP, FTIR, SEM, and EDS). The obtained results showed that induced structural/microstructural changes were not simple functions of the dopant concentration x and that they were influenced by different material-specific processes. Magnetism of the final bulk powders have been investigated by SQUID-magnetometry and correlated with samples composition and structural/microstructural properties. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：14964 / 14972
页数：9
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