Analysis Microstructure of La0.7(Sr1-xCax)0.3MnO3 Prepared by Sol-Gel Method

Sitti Ahmiatri Saptari; Redho Aulia Putra; Arif Tjahjono; Anugrah Azhar; Ikhwan Nur Rahman

doi:10.4028/www.scientific.net/KEM.855.140

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 855Analysis Microstructure of La0.7(Sr1-xCax)0.3MnO3...

Analysis Microstructure of La_0.7(Sr_1-xCa_x)_0.3MnO₃ Prepared by Sol-Gel Method

Abstract:

Perovskite-based on manganite La_0.7(Sr_1-xCa_x)_0.3MnO₃ (x = 0, 0.3, 0.5, 0.7) has been successfully synthesized using by sol-gel method. All sample was characterized by using XRD (X-Ray Diffraction) obtain a single phase without impurities peak. The transition of crystal structure transition, lattice parameters, cell unit volume, crystal size, bond length (Mn-O), and <Mn-O-Mn> bond angles caused by Ca²⁺ ion substitution. Dopant concentration x = 0 - 0.5 shows that the sample has a rhombohedral crystal structure with space group R-3c and orthorhombic crystal structure with space group P n m a at dopant concentration x = 0.7. The results of SEM (Scanning Electron Microscope) characterization show a difference in grain size with the addition of Ca²⁺ ion substitution.

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Periodical:

Key Engineering Materials (Volume 855)

Pages:

140-144

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.855.140

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Online since:

July 2020

Authors:

Sitti Ahmiatri Saptari*, Redho Aulia Putra, Arif Tjahjono, Anugrah Azhar, Ikhwan Nur Rahman

Keywords:

LSCMO, Microstructure, Sol-Gel

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