In this work, structural and magnetic properties of LaMnO3+δ compound prepared by citrate precursor method and annealed in presence of oxygen are investigated. The structural characterization of LaMnO3+δ by X-ray powder diffraction and using X’pert package and Fullprof program is evidence for a rhombohedral structure (R-3c space group) confirmed by FTIR measurement. The magnetic measurements sh...

Stannous oxide (SnO) micro sheets were successfully synthesized by the hydrothermal alkaline solution method and characterized X-ray diffraction, scanning electron microscopy, transmission energy-dispersive spectroscopy, Brunauer-Emmett-Teller (BET) techniques. BET analysis confirmed a mesoporous structure with 33.8944 m2 g−1 specific surface area an average pore diameter of 6.488 nm. The resis...

Abstract Polycrystalline Co-Zn nanoferrites doped with rare earth Dy 3+ ions having general chemical formula Co 0.9 Zn 0.2 x Fe 1.9-x O 4 (x = 0.0, 0.015, 0.03, 0.045 and 0.06) were synthesized via sol-gel auto-combustion route. Powder X-ray diffraction (XRD), scanning electron microscopy (SEM) Fourier transform Infrared Spectra (FTIR) performed to investigate the structural, microstructral, su...

In this work, MnO 2 -SnO nanocomposite based below lower exposure limit (0.5–2.0 vol%) sensing device for liquefied petroleum gas (LPG) is reported. The synthesized material highly crystalline with an average crystallite size of 16.786 nm, confirmed by the X-ray diffraction pattern. Williamson-Hall plot shows that induced strain 2.627 × 10 ?4 , present in nanocomposite, lies between strains bot...

The physical properties of metal-based structural materials, such as hardness, strength and toughness, are directly or indirectly affected by residual stress inside on the surface given part. Repeated rapid heating cooling during additive manufacturing process causes thermal gradients expansion contraction in material, which stress. Tensile stresses known to exist manufactured products should b...

ABSTRACT. At various calcination temperatures 450, 550 and 650 °C, zinc oxide nanoparticles were produced. Calcinated ZnO has high surface area as the BET was 119.12 m2g–1 average particle radius calculated to be 1.16 nm. The dimension of crystallites straining in nanoparticles' diffraction peaks remained measured. Williamson–Hall (W–H) technique besides size–strain approach stayed used. For ea...

The synthesis of Li1.1Co0.3Fe2.1O4 ferrite nanoparticles has been synthesized by the citrate auto-combustion method. distribution cations on A-site and B-site is studied X-ray diffraction High-Resolution Transmission Electron Microscopy. Williamson–Hall analysis Debye–Scherrer method are used to study individual contributions crystallite sizes peak broadening Li1.1Co0.3Fe2.1O4. estimated size i...