X-ray Analysis of NiFe<sub>2</sub>O<sub>4</sub> Nanoparticles by Williamson-Hall and Size-Strain Plot Method

Sapna, .; Budhiraja, Narender; Kumar, Vinod; Singh, Som Nath

doi:10.1166/jap.2017.1363

Cited by 26 publications

(10 citation statements)

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“…The Williamson-Hall method can also calculate the crystallite size (D W−H ), and internal strain (ε) is also obtained by this method [28]: where 'λ' is 0.15406 nm (X-ray wavelength) and 'θ' represents the diffraction angle. 'β' is the full width at half maximum.…”

Section: Xrd and Ftir Analysismentioning

confidence: 99%

The structural, magnetic and optical performances of Ni0.2Zn0.2Co0.6Fe2O4 ferrites synthesized by sol-gel route

2021

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In this work, four complexing agents participated in the synthesis of Ni 0.2 Zn 0.2 Co 0.6 Fe 2 O 4 ferrites by sol-gel route. The X-ray diffraction (XRD) pattern showed that samples had formed spinel phase. The Fourier transform infrared (FTIR) spectra of samples showed two absorption bands around 400 cm −1 and 600 cm −1 , which are the characteristics of spinel ferrites. SEM micrographs showed that the prepared particles had different shape. Vibrating sample magnetometer was used to characterize magnetic performances. The prepared samples showed typical hysteresis behaviors at room temperature. The Ni 0.2 Zn 0.2 Co 0.6 Fe 2 O 4 ferrite sample prepared with egg white as a complexing agent had high coercivity (1365.52 Oe) and remanent magnetization (23.95 emu/g), which indicated that the sample had a potential applications for magnetic storage devices. The sample prepared with egg white had a coercivity six times higher than coercivities (168.44-200.47 Oe) of other samples. These findings revealed that egg white is a suitable complexing agent to prepare Ni 0.2 Zn 0.2 Co 0.6 Fe 2 O 4 hard ferrite by sol-gel route. The optical properties are characterized using PL emission spectra and UV-visible absorption spectrum. From the optical band gap (Eg) value, the sample has the characteristics of a semiconductor material. KeywordsNi 0.2 Zn 0.2 Co 0.6 Fe 2 O 4 ferrite • Sol-gel route • Four complexing agents • Magnetic performances • Optical performances

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Section: Xrd and Ftir Analysismentioning

confidence: 99%

The structural, magnetic and optical performances of Ni0.2Zn0.2Co0.6Fe2O4 ferrites synthesized by sol-gel route

2021

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“…The Williamson-Hall (WH) method can track micro strain magnitudes. The method has become accepted as one of the more rigorous and widely used ways of separating the effects of size and strain (Sapna et al, 2017). The treatment behind the method is quite complex and involves expressing the peak intensity in terms of a Fourier sum, which has distinct mathematical advantages (half of the terms -the sine components -turn out to be negligible, and deconvolution is conveniently handled in Fourier space).…”

Section: X-ray Diffraction Analysismentioning

confidence: 99%

Microstructure and Deformation of 57Fe17Cr25NiSi Austenitic Super Alloy after Arc Plasma Sintering

Dani¹,

Dimyati²,

Parikin³

et al. 2019

IJTech

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The microstructure and deformation of 57Fe17Cr25NiSi super alloy are investigated in this study. The super alloy was produced from a mixture of granular ferro-scrap, ferro chrome, ferro silicon and ferro manganese raw materials by the casting method and then sintered using arc plasma for 4 and 8 minutes. The super alloy has been proposed in nuclear as well as fossil power plant facilities, such as vessels and heat exchangers. A combination of microscopy investigations by means of X-ray diffraction and high-resolution powder diffraction, optical microscopy, scanning electron microscopy and transmission electron microscopy techniques was conducted in order to obtain detailed information about the deformation of super alloy steel and its microstructures, especially fine structures. It was found that the austenitic super alloy microstructure is composed of dendrites of -austenite, which are separated by a eutectic structure of Fe-Cr-C alloy. Arc plasma sintering for 4 to 8 minutes leads to a decrease in the area of the eutectic structure at the inter-dendrites and forms micro strain, from 4.60×10-3 to 5.39-4.06×10-4 .

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“…the average crystallite size can be calculated. 25,35,36 The data point of (a) Li 0.01 Ni 0.99 O (b) Li 0.02 Ni 0.98 O (c) Li 0.03 Ni 0.97 O in Fig. 3 is scattered away from the linear line shown is red color.…”

Section: Fourier Transform Infrared Spectroscopy (Ftir)mentioning

confidence: 99%

“…This equation is derived by differentiating Bragg's Law. 17,25,27,32,33 The crystallite size and strain has been calculated using Eqs. 2 and 3 respectively and shown in Table II.…”

Section: Fourier Transform Infrared Spectroscopy (Ftir)mentioning

confidence: 99%

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A Comparative Study of Experimental and Theoretical Structural Analysis of Lithium Doped Nickel Oxide Nanoparticles

Bhankhar¹,

Saini²,

Sehrawat³

et al. 2023

ECS J. Solid State Sci. Technol.

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Li(x)Ni(1-x)O (x = 0.01, 0.02 and 0.03) samples were synthesized via sol-gel process. Fourier transform infrared spectroscopy (FTIR) confirms the formation of Li(x)Ni(1-x)O (x = 0.01, 0.02 and 0.03) series. Powder X-ray diffraction technique was used for the analysis of crystallite properties. The mean crystallite size using Scherrer’s Method has been found to be 21.66 nm, 20.09 nm and 19.25 nm for Li(x)Ni(1-x)O (0.01, 0.02 and 0.03) respectively, which is a rough estimate. To inspect the impact of strain induced in Li(x)Ni(1-x)O further analysis has been done. Willamson Hall Plot-Uniform Deformation Model (WH-UDM), Size-Strain (SSP) and Halder-Wagner Plot (H-W) Models were applied to determine physical and microstructural parameters i.e. crystallite size and lattice strain of Li(x)Ni(1-x)O (x = 1%, 2% and 3%) using X-ray powder diffraction analysis. The morphology of Li(x)Ni(1-x)O (x = 1%, 2% and 3%) has been analyzed by High-Resolution Transmission Electron Microscope (HRTEM). The outcomes of estimated mean crystallite size determined by Scherrer’s Method, WH-UDM Plot, SSP and W-H models were compared with morphologically investigated crystallite size via TEM analysis.

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X-ray Analysis of NiFe₂O₄ Nanoparticles by Williamson-Hall and Size-Strain Plot Method

Cited by 26 publications

References 0 publications

The structural, magnetic and optical performances of Ni0.2Zn0.2Co0.6Fe2O4 ferrites synthesized by sol-gel route

The structural, magnetic and optical performances of Ni0.2Zn0.2Co0.6Fe2O4 ferrites synthesized by sol-gel route

Microstructure and Deformation of 57Fe17Cr25NiSi Austenitic Super Alloy after Arc Plasma Sintering

A Comparative Study of Experimental and Theoretical Structural Analysis of Lithium Doped Nickel Oxide Nanoparticles

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X-ray Analysis of NiFe2O4 Nanoparticles by Williamson-Hall and Size-Strain Plot Method

Cited by 26 publications

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The structural, magnetic and optical performances of Ni0.2Zn0.2Co0.6Fe2O4 ferrites synthesized by sol-gel route

The structural, magnetic and optical performances of Ni0.2Zn0.2Co0.6Fe2O4 ferrites synthesized by sol-gel route

Microstructure and Deformation of 57Fe17Cr25NiSi Austenitic Super Alloy after Arc Plasma Sintering

A Comparative Study of Experimental and Theoretical Structural Analysis of Lithium Doped Nickel Oxide Nanoparticles

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X-ray Analysis of NiFe₂O₄ Nanoparticles by Williamson-Hall and Size-Strain Plot Method