Refinement Analysis using the Rietveld Method of Nd1.2Fe1O3 Oxide Material Synthesized by Solid-State Reaction

Abstract

Neodymium Ferrite Oxide (Nd1.2FeO3) has been successfully synthesized using solid state reaction by varying annealing time. Structural crystallographic characteristics were obtained by X-ray diffraction. The results of X-ray diffraction analysis showed the samples had been identified composed of NdFeO3 and Nd2-O3 phase, with peak dominant correspond to hkl (121), FWHM value of 0.22° and estimated crystal size of 393 nm. Analysis using Rietveld methods obtained Nd1.2FeO3 oxide material has a crystal structure is orthorhombic with space-group of PNMA. The results are comparable as was reported elsewhere that the oxide material is useful for gas sensor application.

Synthesis of ytterbium-doped neodymium ferrite oxide using solid-state reaction method and its characterization

“…The Yb doped NdFeO 3 sample was synthesized using the best parameters found by previous research [18][19][20][21][22][23]. Raw materials of Nd 2 O 3 (Strem Chemicals, 99.99%), Yb 2 O 3 (Sigma-Aldrich, 99.99%) and Fe 2 O 3 (Sigma-Aldrich, 99.99%) were mixed according to stoichiometric calculation and grinded using mortar for 3 h. That mixed material then calcined using the furnace at temperature 700 C for 4 h. After that, the temperature increased to 950 °C by keeping the temperature constant for 2 h. The heating then decreased to 475 °C and kept it continued for 2 h. After this thermal process, the material was grinded for 6 h.…”

Sintesis Serbuk Nano Titanium Dioksida Dan Identifikasi Struktur Kristalnya

“…𝛽 cos 𝜃 di mana D merupakan ukuran kristal (nm), λ merupakan panjang gelombang sinar-X yang digunakan yakni 0.15406 nm, β merupakan FWHM (radian) dan θ adalah sudut difraksi (radian) (Sujiono, et al, 2019) yang dapat dilihat pada tabel 1. Berdasarkan tabel 1, terlihat bahwa estimasi ukuran rerata dari (Kisi, 1994) (Sujiono, Said, Dahlan, Imran, & Samnur, 2018). Hasil analisis Rietveld dapat dilihat pada gambar 2.…”

“…Hasil analisis Rietveld dapat dilihat pada gambar 2. Terlihat bahwa terdapat kecocokan antara kurva eksperimen (hitam) dan kurva penghalusan (merah) yang menandakan keakuratan dari proses penghalusan yang dilakukan (Sujiono, Said, Dahlan, Imran, & Samnur, 2018).…”

Morphological and Structural Analysis of Nd₁(Fe)_0.2Ba_1.8Cu₃O_7-δ Oxide Material

“…All of this method took much time for the heat treatment process, such as calcination, sintering, and annealing, with various time and the different molar ratio [3,10,12,13]. In recent research, perovskite oxide only took 6 -24 h for the heat treatment process [14,15]. Therefore, information on the morphological and structural of oxide material is crucial to know the particle size.…”