X-ray peak profile analysis of CoAl2O4 nanoparticles by Williamson-Hall and size-strain plot methods

Irfan, H.; Racik, K. Mohamed; Ананд, С.

doi:10.3897/j.moem.4.1.33272

Cited by 26 publications

(15 citation statements)

References 36 publications

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“…In comparison, phase γ(Ni5Zn21) does not exhibit the same behavior that could be associated with its higher stability. It has been stated in the literature [8,[20][21][22] that alloys with a nickel content of 12% consist solely of intermetallic(δ-phase) Ni3Zn22. The improvement in the nickel content by up to 19 at.…”

Section: X-ray Diffractionmentioning

confidence: 99%

“…The deposit prepared at a temperature of 40℃ gives us a uniform and compact pyramidal structure, consisting of several large grain size films. The presence of a pyramidal morphology was due to the greater quantity of zinc in the layer (with an amount of 13% Nickel in the deposit) [21,22]. Increasing the temperature from 70 to 90°C activates the electrodepositing Nickel, which consequently creates a significant amount of nickel in the layers, so the deposit becomes irregular and non-uniform, while some fine cracks occur on the coating surface.…”

Section: Effect Of the Bath Temperaturementioning

confidence: 99%

“…These results show that the content of Ni has a major effect on the morphology and grain size of the coatings. Several authors [5,21,22,30,31] have shown that electrolyte contents concentrations have an influence on the morphological shape of deposits. It was found that, the amount of Nickel in the coatings is increasing with the increase of the Nickel concentration in the electroplating baths.…”

Section: Effect Of Electrolyte Concentrationmentioning

confidence: 99%

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Morphology and Corrosion Behavior of Zn-Ni Layers Electrodeposited on Low Alloy Carbon Steel Substrate

Chouia¹,

Chala²,

Abdelghani³

et al. 2021

ACSM

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The aim of this work is to improve the microstructure, the morphology, the mechanical and the corrosion behavior of Zn-Ni layers electrodeposited on low alloy carbon steel. Some factors such as the nickel concentration in the electrolyte, the electrolyte temperature and the current density are studied and optimized. The efficiency of the layers to protect the low alloy carbon steel against corrosion in HCl solution is also studied in this work. The electrodeposited Zn-Ni layers morphologies and microstructure were investigated by Scanning Electronic Microscopy (SEM) and X-ray diffraction (XRD) respectively. The best deposits of Zn-Ni layers are obtained with 50%-Ni in the electrolyte bath at a temperature of 40°C and a current density of j = 3 A dm-2. The XRD spectrum showed the coexistence of two phases: δ-phase (Ni3Zn22) and γ-phase (Ni5Zn21), and a pyramidal morphology is detected by SEM. The lost mass method results showed that the corrosion rate tacked a steady state between 10 and 50% of Ni, and it increased with the increase of Ni amount in the electrolyte bath.

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Section: X-ray Diffractionmentioning

confidence: 99%

Section: Effect Of the Bath Temperaturementioning

confidence: 99%

Section: Effect Of Electrolyte Concentrationmentioning

confidence: 99%

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Morphology and Corrosion Behavior of Zn-Ni Layers Electrodeposited on Low Alloy Carbon Steel Substrate

Chouia¹,

Chala²,

Abdelghani³

et al. 2021

ACSM

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“…If the profiles are purely Gaussian or purely voightian, this method provides a very simple and quick way to evaluate the effects of stress and size. For the other pseudo-voighian profiles, approximations are necessary for the separation of these two effects [21,22].…”

Section: Figure 2 Diagram Shape Of Williamson and Hallmentioning

confidence: 99%

X-Ray Peak Profile Analysis of Materials M1 and M2 by Williamson-Hall and Size-Strain Plot Methods

Khier¹,

Abdelghani²,

Maouche³

2021

ACSM

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In this work, we have studied the Kaolin M1 and M2 by the X-ray diffraction method, and we have focused on mullite phase which is the main phase present in common in both products. An update of the program of the method of Stokes was carried out, it was necessary to the microstructural analysis. The completed version is less sensitive to the choice by excess of the number of coefficients of Fourier with regard to the effect of truncation and the office plurality of the errors. The determination of the symmetry of the cell of the principal phase (mullite) in the studied fritted Kaolins was carried out. In Kaolin M1, the size of crystallites of the dominant phase varies between 80 to 170 Å. In Kaolin M2, the size of the crystalline grains of mullite varies between 100 to 400 Å. The size of crystallites was confirmed by the joint method of Williamson-Hall. A distribution of sizes of crystallites was carried out. It shows a dominance of the size of approximately 140 Å for the principal phase of Kaolin M1 and a dominance of the size of approximately 230 Å for the same principal phase of Kaolin M2. By the study of the profiles of line by DRX, it appears very clearly that the principal phase of the various sintered Kaolins, mullite, is free from internal microstrains. It is the case of the mixtures fritted not only at low temperature (1100℃) during 1 hour but also the case of the mixtures of the type ‘chamotte’ cooks with 1350℃ during very long times.

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“…For the other pseudo-Voightian profiles, approximations are necessary for the separation of these two effects. 21,22…”

Section: Introductionmentioning

confidence: 99%

X-ray diffraction analysis of kaolin M1 and M2 via the Williamson–Hall and Warren–Averbach methods

Khier

Abdelghani

Belahssen

et al. 2021

Journal of Chemical Research

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Kaolin M1 and M2 studied by X-ray diffraction focus on the mullite phase, which is the main phase present in both products. The Williamson–Hall and Warren–Averbach methods for determining the crystallite size and microstrains of integral breadth β are calculated by the FullProf program. The integral breadth ( β) is a mixture resulting from the microstrains and size effect, so this should be taken into account during the calculation. The Williamson–Hall chart determines whether the sample is affected by grain size or microstrain. It appears very clearly that the principal phase of the various sintered kaolins, mullite, is free from internal microstrains. It is the case of the mixtures fritted at low temperature (1200 °C) during 1 h and also the case of the mixtures of the type chamotte cooks with 1350 °C during very long times (several weeks). This result is very significant as it gives an element of explanation to a very significant quality of mullite: its mechanical resistance during uses at high temperature remains.

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X-ray peak profile analysis of CoAl2O4 nanoparticles by Williamson-Hall and size-strain plot methods

Cited by 26 publications

References 36 publications

Morphology and Corrosion Behavior of Zn-Ni Layers Electrodeposited on Low Alloy Carbon Steel Substrate

Morphology and Corrosion Behavior of Zn-Ni Layers Electrodeposited on Low Alloy Carbon Steel Substrate

X-Ray Peak Profile Analysis of Materials M1 and M2 by Williamson-Hall and Size-Strain Plot Methods

X-ray diffraction analysis of kaolin M1 and M2 via the Williamson–Hall and Warren–Averbach methods

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