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Item

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  1. University of Yangon
  2. Department of Chemistry

Study of Structural and Electrical Transport Properties of Polycrystalline La1-xCaxMnO3 (x=0.33, 0.5 and 0.9) Prepared by a Co- precipitation Method

http://hdl.handle.net/20.500.12678/0000002362
http://hdl.handle.net/20.500.12678/0000002362
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93dcb3e7-f6ad-4718-b14c-4cdde1d9e11a
Publication type
Journal article
Upload type
Publication
Title
Title Study of Structural and Electrical Transport Properties of Polycrystalline La1-xCaxMnO3 (x=0.33, 0.5 and 0.9) Prepared by a Co- precipitation Method
Language en
Publication date 2013
Authors
Mya Theingi
Ma, Ji
Zhang, Hui
Xiang, Gao
Yi, Jianhong
Chen, Qingming
Description
Manganite perovskite La1-xCaxMnO3 (x=0.33, 0.5 and 0.9) have been prepared by
chemical co-precipitation method. Ammonium carbonate was used to coprecipitate lanthanum,
calcium and manganese ions as carbonates under basic condition. This precursor on calcining at
900°C yields La-Ca-Mn-O perovskite phase. Follow by sintering at 1200°C after the powders were
pressed into pellets gave La1-xCaxMnO3 (LCMO) polycrystalline ceramics. The crystal phases of the
resulting powders and ceramics were examined by X-ray diffraction (XRD) technique. The
morphology of the powders was observed by scanning electron microscopy (SEM) and electrical
transport properties of ceramics were measured by conventional four-point probe technique.
Identifier http://uyr.uy.edu.mm/handle/123456789/102
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