Microwave assisted low temperature rapid synthesis of manganite system using La0.67Ce0.03Sr0.3MnO3 mini-cavity furnace

被引：8
作者：
Kale, S. N. [1 ]
Rajagopal, Rajashree [1 ]
Mona, J. [1 ]
Londhe, D. P. [1 ]
Joshee, R. S. [2 ]
Jagdale, T. C. [3 ]
Satyanarayana, C. [4 ]
Ravi, V. [5 ]
机构：
[1] Fergusson Coll, Comp Sci Unit, Pune 411004, Maharashtra, India
[2] Fergusson Coll, Dept Phys, Pune 411004, Maharashtra, India
[3] Pune Univ, Dept Phys, Pune 411004, Maharashtra, India
[4] Natl Chem Lab, Catalys Div, Pune 411008, Maharashtra, India
[5] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India
来源：
MATERIALS LETTERS | 2008年 / 62卷 / 02期
关键词：
oxides; manganites; citrate gel method; LSMO; microwave;
D O I：
10.1016/j.matlet.2007.05.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Amorphous La0.7Sr0.3MnO3 (LSMO) and La0.7Ca0.3MnO3 (LCMO) precursor powders synthesized by the citrate gel method at 673 K, have been found to crystallize by microwave irradiation in just 60 s using La0.67Ce0.03Sr0.3MnO3 (Ce-LSMO) as couplant. This is the lowest temperature treatment and synthesis time so far reported in literature for the fort-nation of manganite systems. Using ceramic route, the same amorphous samples crystallize on heat treatment only at temperatures greater than 1000 K. The microwave heating through this method is novel and has tremendous potential for accelerating the evolution of the product phase in very shorter durations, with just low temperature processing of the precursors, which cannot be realized in normal process. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：191 / 193
页数：3
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