ANALISIS KARAKTERISASI XRD SINTESIS MATERIAL La0,7Ca0,3(Mn,Co)O3  MELALUI METODE MECHANICAL ALLOYING

Anggita Prasanti; Riser Fahdiran; Sitti Ahmiatri Saptari; Erfan Handoko

Anggita Prasanti Kelompok Peneliti Material Magnet, Jurusan Fisika FMIPA Universitas Negeri Jakarta
Riser Fahdiran Kelompok Peneliti Material Magnet, Jurusan Fisika FMIPA Universitas Negeri Jakarta
Sitti Ahmiatri Saptari Fisika Fakultas Sains dan Teknologi UIN Jakarta
Erfan Handoko Kelompok Peneliti Material Magnet, Jurusan Fisika FMIPA Universitas Negeri Jakarta

Abstract

Perovskite manganites materials La0,7Ca0,3Mn1-xCoxO3 with x = 0 and x = 0.1 through mechanical alloying method to characterize x-ray difraction has been synthesized. Material consisting of La2O3, CaO, MnCO3, and Co3O4 mixing by high energy ball mill for 1 hour and produce a homogeneous mixture followed by calcination at 750 Â° C and molding sample pellets and sintering at 1100 Â° C for 3 hours and monoclinic crystal structure with lattice parameters for x = 0 a = 7.752 Ã…; b = 5.463 Ã…; c = 5.466 Ã… and 231.54 A3 cell volume with 39.27 nm crystal size and density Ï = 6.93 g / cm3, while for x = 0.1 a = 7.742 Ã…; b = 5.470 Ã…; c = 5.460 Ã… and 231.23 A3 cell volume with 40.29 nm crystal size and density Ï = 6.95 g / cm3 with x-ray diffraction measurements as a result. Specification phase as a resukt of qualitative analysis and crystal size as a result of quantitaive analysis explained that the substitution can be done.

Keywords: perovskite manganites, mechanical alloying, High Energy Ball Mill, X-ray Diffraction, Monoclinic.