Estimation of Lattice Strain in Lanthanum Hexa Aluminate Nanoparticles Using X-Ray Peak Profile Analysis

Yellapragada, Naga Venkata Sai Ram; C, Tara Sasanka; Jayaraman, Prabakaran; Devarakonda, Sameer Kumar

doi:10.18280/rcma.310102

Cited by 6 publications

(4 citation statements)

References 29 publications

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“…The gradient of the linear fit indicates the strain, which is 3 74 10 % − ⋅ . The model aligns well with the experimental points, indicating the homogeneity of the structure [10], [11]. The investigation of the structure using Raman spectroscopy was conducted on the Solver Spectrum 600/600 spectrometer.…”

Section: Fig 3 Xrd Pattern Of Microcrystalline Pbs Thin Filmssupporting

confidence: 72%

Formation of PbS microstructured films by CBD method and study of structural properties

Amirbekova,

Tolepov,

Guseinov

et al. 2023

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Microcrystalline lead sulfide (PbS) films were synthesized using the chemical deposition method. The films were deposited on pre-cleaned glass substrates and polished silicon wafers. Chemicals of high purity were utilized in the process. The morphology, composition, and structure of the films were characterized using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD). The films exhibited a galena phase with a face-centered cubic structure belonging to the Fm-3m space group. The average grain size was determined using the WilliamsonHall method, revealing a homogenous structure. Raman spectroscopy further confirmed the structural integrity of the films. The obtained results contribute to the understanding of the synthesis and properties of microcrystalline PbS films.

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Section: Fig 3 Xrd Pattern Of Microcrystalline Pbs Thin Filmssupporting

confidence: 72%

Formation of PbS microstructured films by CBD method and study of structural properties

Amirbekova,

Tolepov,

Guseinov

et al. 2023

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“…Table 1 depicts the basic properties of materials used. LHA nanoparticles are synthesized using the stoichiometric reactions described by Yellapragada et al [23] in their previous work.…”

Section: Methodsmentioning

confidence: 99%

Optimization of Process Parameters for Preparation of Lanthanum Hexa-Aluminate Powders Using Combinatorial Approach of Taguchi-GRA and ACO Methods

Srividya¹,

Reddy²,

Prasad³

et al. 2023

ACSM

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This work focuses on selection of optimal process parameters for the preparation of Lanthanum Hexa-aluminate (LHA) nanoparticles using chemical precipitation and filtration process. Multi response optimization is performed using Taguchi-GRA combinatorial approach using the process parameters such as Temperature (A), Time (B) and Composition (C). The results showed that % composition has the largest effect on hardness, while the Calcination Temperature is the most important factor in ultimate compression strength. In GRA analysis, the combined effect of hardness and ultimate compression strength is considered and the optimum combination is identified (A1B2C2). The percentage of the contribution was most important factor affecting hardness performance (36.58%). Based on the GRA results a regression equation is generated and optimized using ACO technique followed by preparation and characterization of powders. For the powders, prepared FESEM/EDS analysis were done and observed that average grain size of the particle is 85nm.

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“…Majority of the prepared powders consists of aluminum and lanthanum peaks which indicate the process is prepared well. Sai et.al [28] in their previous works reported that prepared alumina lanthanum hexa-aluminate ceramic powders and crystallite size determination using peak analysis and reported that the youngs modulus is 298 Gpa and it is selected as a reinforcement. Sameer et.al reported that among various magnesium alloys AZ91E has emerged as best material in view of automotive applications [29].…”

Section: Methodsmentioning

confidence: 99%

Optimization of Dry-Sliding Wear Parameters on Lanthanum Hexa Aluminate Reinforced Magnesium AZ91E Composites Using Grey Relation Analysis

Ynv

Sasanka²,

Prabakaran

2022

NHC

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This work confers to the preparation of Magnesium metal matrix composites reinforced with Lanthanum Hexa-aluminate nanoparticles by a stir casting technique and the tribological characteristics of the composites in dry condition were investigated. A Comparison is also made with AZ91E magnesium alloy and the prepared composites for the assessment of wear behavior. A design of experiments based on the Taguchi technique is used to collect data in a controlled manner. A L25 orthogonal array is used to investigate the effect of wear parameters such as Percentage of Reinforcement, Sliding Speed, Applied Load, and Sliding Distance on dry sliding wear of composites. The aim of the model was to investigate dry sliding wear with "smaller is better" characteristics. The results showed that sliding distance has the largest effect on wear, while the load is the most important factor in friction response. In GRA analysis, the combined effect of wear and frictional force is considered and the optimum combination is identified (S5 L1 D1 R4). The percent of the contribution of load, L (60.97 %) was known to be the most important factor influencing performance to wear. The % reinforcement, R (31.17%) was found to be the 2nd most influencing factor, followed by sliding distance, D (4.81%), and sliding velocity S (0.25%). The worn surfaces of fabricated composites in the best and worst conditions were examined using scanning electron microscopy for understanding the wear mechanism.

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Estimation of Lattice Strain in Lanthanum Hexa Aluminate Nanoparticles Using X-Ray Peak Profile Analysis

Cited by 6 publications

References 29 publications

Formation of PbS microstructured films by CBD method and study of structural properties

Formation of PbS microstructured films by CBD method and study of structural properties

Optimization of Process Parameters for Preparation of Lanthanum Hexa-Aluminate Powders Using Combinatorial Approach of Taguchi-GRA and ACO Methods

Optimization of Dry-Sliding Wear Parameters on Lanthanum Hexa Aluminate Reinforced Magnesium AZ91E Composites Using Grey Relation Analysis

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