A5057910449- Magnetic Properties of Alloys
- Magnetic properties of thin films
- Magnetic Properties and Synthesis of Ferrites
- Magnetic Properties and Applications
- Multiferroics and related materials
- Magnetic and transport properties of perovskites and related materials
- Plasma Diagnostics and Applications
- Plasma Applications and Diagnostics
- Laser-induced spectroscopy and plasma
- Advancements in Battery Materials
- Ion-surface interactions and analysis
- Electrohydrodynamics and Fluid Dynamics
- Iron oxide chemistry and applications
- Non-Destructive Testing Techniques
- Rheology and Fluid Dynamics Studies
- Lubricants and Their Additives
- Tribology and Lubrication Engineering
- Integrated Circuits and Semiconductor Failure Analysis
- Advanced Machining and Optimization Techniques
- Advanced Condensed Matter Physics
- Rare-earth and actinide compounds
- Microstructure and Mechanical Properties of Steels
University of Richmond
2023
University of Memphis
2014-2020
Truman State University
2019-2020
University of California, Merced
2019
Georgia Southern University
2018-2019
Paschen's law (PL), derived based on the Townsend avalanche (TA) condition, is commonly used to predict gas breakdown. For microscale gaps near atmospheric pressure, TA insufficient drive breakdown and ion-enhanced field emission (FE) dominates. Accurately predicting voltages for these critical numerous applications, including environmental remediation, medicine, combustion, propulsion. This tutorial summarizes theoretical computational approaches this behavior demonstrating transition...
Magnetically hard-soft (100-x) SrFe12O19-x wt % La0.7Sr0.3MnO3 nanocomposites were synthesized via a one-pot auto-combustion technique using nitrate salts followed by heat treatment in air at 950 °C. X-ray diffraction (XRD), transmission electron microscopy (TEM), and vibrating sample magnetometry (VSM) used to characterize the structural magnetic properties of samples. XRD spectra revealed formation mixture ferrite magnetite phases without any trace secondary composite. Microstructural...
Magnetic nanocomposite (hard) SrFe12O19-(soft) La(1-x) SrxMnO3 powders in 4:1 weight ratio was synthesized via a one-pot auto-combustion technique using nitrate salts followed by heat treatment air at 950°C. Structural and morphological characterizations were performed x-ray diffraction (XRD) transmission electron microscopy (TEM). Vibrating sample magnetometer (VSM) used to study the magnetic properties of samples. XRD analysis shows presence pure phase components nanocomposite. TEM images...
Among the family of ferrites, M-type hexaferrites has many industrial applications ranging from simple magnets to microwave devices. Improvement in magnetic and dielectric properties ferrites is continuous interest. In this present work details study done observe effect co-doping rare-earth (RE3+: Pr3+, Sm3+, Gd3+) aluminum Sr0.82RE0.18Fe12-xAlxO19 (x = 0.0, 0.5, 1.0, 1.5, 2.0). The adopted samples were synthesized via autocombustion technique. Detailed synthesis, structural, magnetic,...
The present study investigates the influence of La3+ and Pr3+ doping on structural, magnetic properties, hyperfine fields Sr0.7RE0.3Fe12-2x CoxAlxO19, (RE: Pr3+, x = 0.0 - 0.8) hexaferrite compounds prepared via auto-combustion technique. XRD analysis shows a linear decrease in c lattice unit cell volume contraction with content x. room temperature that for doped Sr0.7Pr0.3Fe12-2x CoxAlxO19 (Pr3+-SrM), magnetization value monotonically decreases while Sr0.7La0.3Fe12-2xCoxAlxO19 (La3+-SrM)...
The effect of transition metal substitution for Fe and the structural magnetic properties Gd2Fe16Ga0.5TM0.5 (TM = Cr, Mn, Co, Ni, Cu, Zn) compounds were investigated in this study. Rietveld analysis X-ray data indicates that all samples crystallize hexagonal Th2Ni17 structure. lattice parameters a, c, unit cell volume show TM ionic radii dependence. Both Ga atoms preferred site occupancy 12j 12k sites. saturation magnetization at room temperature was observed Cu 69, 73, 77 emu/g,...
The effect of transition metal substitution for Fe and the structural magnetic properties Gd2Fe16Ga0.5TM0.5 (TM=Cr, Mn, Co, Ni, Cu, Zn) compounds were investigated. Rietveld analysis X-ray diffraction indicates that all samples crystallize in hexagonal Th2Ni17 structure. lattice parameters: a, c unit cell volume show TM ionic radii dependence. Both Ga atoms preferred site occupancy 12j 12k sites. saturation magnetization at maximum room temperature was observed Cu 69, 73, 77 emu/g,...
The effects of substitution Zr and Ga on the structural magnetic properties Dy2Fe17 intermetallic compound were investigated in this study. Rietveld analysis confirmed that crystalline system was a Th2Ni17 structure. Lattice parameters (Å) c (Å), unit cell volume (Å3), bonding distance calculated using analysis. Dy2Fe17−xZrx Dy2Fe16Ga1−xZrx increased linearly with substitution. Curie temperature (Tc) found to be content-dependent. maximum temperatures observed at 510 K (x = 0.75 content) for...
The effect of transition metal substitution for Fe and the structural magnetic properties Gd2Fe16Ga0.5TM0.5 (TM=Cr, Mn, Co, Ni, Cu, Zn) compounds were investigated. Rietveld analysis X-ray diffraction indicates that all samples crystallize in hexagonal Th2Ni17 structure. lattice parameters: a, c unit cell volume show TM ionic radii dependence. Both Ga atoms preferred site occupancy 12j 12k sites. saturation magnetization at maximum room temperature was observed Cu 69, 73, 77 emu/g,...
In this article, the effect of substitution Zr and Ga in Dy2Fe17 prepared by arc melting technique are studied. The was found to have an important on their structure magnetic properties. Rietveld analysis conformed that crystalline system wereTh2Ni17 structure. Lattice parameters a (Å) c (Å), unit cell volume (Å3), bonding distance were calculated using analysis. Dy2Fe17-xZrx Dy2Fe16Ga1-xZrx increase linearly with substitution. limited up x=1 order avoid...
Intermetallic compounds of Dy2Fe16Ga1−xNbx (x = 0.0 to 1.00) were synthesized by arc melting. Samples investigated for structural, magnetic, and hyperfine properties using X-ray diffraction, vibration sample magnetometer, Mossbauer spectrometer, respectively. The Rietveld analysis room temperature diffraction data shows that all the samples crystallized in Th2Fe17 structure. unit cell volume alloys increased linearly with an increase Nb content. maximum Curie Tc ~523 K x 0.6 is higher than...