Effects of Molar Ratios and Sintering Times on Crystal Structures and Surface Morphology of Nd1+xFeO3 Oxide Alloy Prepared by using Solid Reaction Method

5th International Conference on Advanced Materials Sciences and Technology

Sujiono, E.H.^1 ; Agus, J.^1 ; Samnur, S.^1 ; Triyana, K.^2

Laboratory of Materials Physics, Department of Physics, Universitas Negeri Makassar, Parang Tambung Campus, Makassar

90224, Indonesia^1

Department of Physics, Universitas Gadjah Mada, Sekip Utara BLS 21, Yogyakarta

55281, Indonesia^2

关键词: Chemical preparation;    Crystalline size;    Gas sensor materials;    Molar ratio;    Nd1+xFeO3;    Sintering time;    Solid reaction method;    Solid state reaction method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/367/1/012056/pdf
DOI  :  10.1088/1757-899X/367/1/012056

来源: IOP

【 摘 要 】

The effects of molar ratios and sintering times on crystal structures and surface morphology on NdFeO3oxide alloy have been studied. NdFeO3oxide alloy formed by chemical preparation with solid reaction method using raw oxide Fe2O3(99.9 %) and Nd2O3(99.9 %) powders. In this article we reported the effects of molar ratios x = (-0.1, -0.2 and -0.3) and sintering times for 15 h and 20 h on crystal structures and surface morphology of Nd1+xFeO3synthesized by solid-state reaction method. The results indicate that variation of molar ratio and sintering time has influenced the FWHM, crystalline size and grain size. The Nd1+xFeO3have a major phase is NdFeO3,and other minor phases are Fe2O3, Nd2O3and Nd(OH)3. The dominant intensity of hkl (121) with a value in FWHM, crystallite size, and grain size an indication the results will be applied as a gas sensor material as the focus of the further study.