A Study of Substitution the Element of (La+3) on the Structural and Electrical Properties of the Compound Ferrite (π‚π¨πŸŽ.πŸπŸ“π‘΅π’ŠπŸŽ.πŸπŸ“π™π§πŸŽ.πŸ“π‹πšπ±π…πžπŸβˆ’π±πŽπŸ’)

NeuroQuantology β—½ Β 
2021 β—½ Β 
Vol 19 (3) β—½ Β 
pp. 56-61
Author(s): Β 
Bilal Ahmed Omar β—½ Β 
Rabab Shakour Ali
Keyword(s): Β 
Crystal Structure β—½ Β 
Electron Microscopy β—½ Β 
Electrical Conductivity β—½ Β 
Electrical Properties β—½ Β 
Spontaneous Combustion β—½ Β 
Chemical Formula β—½ Β 
X Ray Diffraction β—½ Β 
X Ray β—½ Β 
Structural And Electrical Properties β—½ Β 
Scanning Electron

The ferritic nanocomposite which prepared has the chemical formula of (Co0.25𝑁𝑖0.25Zn0.5LaxFe2βˆ’xO4), for different values of (X= 0, 0. 25, 0. 5, 0. 75), by using the spontaneous combustion-gel method, where calcination had been at temperature of (700˚C) for two hours; then studied the structural properties of the resulting ferrite via X-Ray diffraction (XRD), and Scanning Electron Microscopy (SEM) The results denote that the ferrite has a unique phase with a spinal-shaped crystal structure and a granular size are (23-36) nm, with increase in lattice constant of decrease in porosity, and electrical properties were also take in to consideration, like value of dielectric constant, the loss coefficient also observed via increase the frequency. The alternating electrical conductivity (Οƒa.c) increases with increasing frequency.

scholarly journals Synthesis, Crystal Structure Refinement, and Electrical Conductivity of Pb(8βˆ’x)Na2Smx(VO4)6O(x/2)

Journal of Chemistry β—½ Β 
10.1155/2014/263548 β—½ Β 
2014 β—½ Β 
Vol 2014 β—½ Β 
pp. 1-7
Author(s): Β 
Tatiana M. Savankova β—½ Β 
Lev G. Akselrud β—½ Β 
Lyudmyla I. Ardanova β—½ Β 
Alexey V. Ignatov β—½ Β 
Eugeni I. Get’man β—½ Β 
... Β 
Keyword(s): Β 
Crystal Structure β—½ Β 
Electron Microscopy β—½ Β 
Electrical Conductivity β—½ Β 
Scanning Electron Microscopy β—½ Β 
Solid Solutions β—½ Β 
Structure Refinement β—½ Β 
Crystal Structure Refinement β—½ Β 
X Ray Diffraction β—½ Β 
X Ray β—½ Β 
Scanning Electron

Solid solutions of Pb(8βˆ’x)Na2Smx(VO4)6O(x/2)were studied using X-ray diffraction analysis including Rietveld refinement and scanning electron microscopy and by measuring their electrical conductivity. Crystal structure of the solid solutions was refined and the solubility region0≀x≀0.2was determined for samarium substitution for lead under the scheme2Pb2++β–‘β†’2Sm3++O2-. The influence of degree of substitution on the electrical conductivity of solid solutions was established.

High-performance electrical properties of La-based perovskite ceramics for the functional phase of thick film resistors

2020 β—½ Β 
Author(s): Β 
Yongcheng Lu β—½ Β 
Yuanxun Li β—½ Β 
Daming Chen β—½ Β 
Rui Peng β—½ Β 
Qinghui Yang β—½ Β 
... Β 
Keyword(s): Β 
Crystal Structure β—½ Β 
Electrical Properties β—½ Β 
Thick Film β—½ Β 
High Performance β—½ Β 
Composite Ceramics β—½ Β 
X Ray Diffraction β—½ Β 
X Ray β—½ Β 
Alternative Material β—½ Β 
Perovskite Ceramics β—½ Β 
Scanning Electron

Abstract In order to explore an economical functional phase alternative material for thick film resistors, the crystal structure, microstructure, and electrical properties of (1-x)LSCN + xLCNZ (x = 0.0–1.0) composite ceramics were studied through solid-state reaction experiments. The composite ceramics were characterized by x–ray diffraction, scanning electron microscopy, energy dispersive x–ray spectroscopy, and DC four–probe method. Results suggested that the main phases of LSCN and LCNZ were formed, along with a small part of impurity phases. The addition of LCNZ to LSCN decreased the electrical conductivity and changed the TCR from positive to negative. Zero TCR could be achieved around 0.6 < x < 0.8 and relatively low absolute TCR values could be obtained for the samples of 0.4 ≀ x ≀ 0.8. The ceramic of 0.6LSCN + 0.4LCNZ showed the optimal performances of conductivity = 1923 S/cm, TCR = 379.54 ppm/℃, and relative density = 95.05%.

Nanocrystalline Barium Zirconium Titanate Synthesized by the Sonochemical Process

2013 β—½ Β 
Vol 802 β—½ Β 
pp. 119-123
Author(s): Β 
Supamas Wirunchit β—½ Β 
Rangson Muanghlua β—½ Β 
Supamas Wirunchit β—½ Β 
Wanwilai Vittayakorn β—½ Β 
Naratip Vittayakorn
Keyword(s): Β 
Crystal Structure β—½ Β 
Electron Microscopy β—½ Β 
Reaction Time β—½ Β 
Single Phase β—½ Β 
Zirconium Titanate β—½ Β 
X Ray Diffraction β—½ Β 
X Ray β—½ Β 
Large Particles β—½ Β 
Barium Zirconium Titanate β—½ Β 
Scanning Electron

Nanocrystalline barium zirconium titanate, BaZr0.4Ti0.6O3, was synthesized successfully via the sonochemical process. The effects of reaction time on the precipitation of Ba(Zr,Ti)O3 particles were investigated briefly. The crystal structure as well as molecular vibrations and morphology were investigated. X-ray diffraction indicated that the powders exhibited a single phase perovskite structure, without the presence of pyrochlore or unwanted phases at the reaction time of 60 min. Nanocrystals were formed before being oriented and aggregated into large particles in aqueous solution under ultrasonic irradiation. A scanning electron microscopy (SEM) photograph showed the BZT powder as spherical in shape with uniform nanosized features.

Non-Stoichiometry and Structure of SrCe1-xYbxO3 Perovskite-Type Oxides

MRS Proceedings β—½ Β 
10.1557/proc-453-519 β—½ Β 
1996 β—½ Β 
Vol 453 β—½ Β 
Author(s): Β 
Igor Kosacki β—½ Β 
Mark Shumsky β—½ Β 
Harlan U. Anderson
Keyword(s): Β 
Electrical Conductivity β—½ Β 
Electrical Properties β—½ Β 
Charge Carrier β—½ Β 
Structural Properties β—½ Β 
Electrical Transport β—½ Β 
Structural Disorder β—½ Β 
X Ray Diffraction β—½ Β 
X Ray β—½ Β 
Structural And Electrical Properties β—½ Β 
Perovskite Type

AbstractThe structural and electrical properties of SrCe1-xYbxO3 ceramics have been studied as a function of temperature and Yb-concentration using x-ray diffraction and impedance techniques. The influence of Yb-dopants on electrical transport and structural disorder has been studied. A correlation between the structural properties, electrical conductivity is observed and discussed. These measurements allow us to determine the mechanism of charge carrier compensation and also the concentration and mobility of the electrical species.

Crystal Structure of BiFeO3 Synthesized Using the Hydrothermal Processing

2014 β—½ Β 
Vol 602-603 β—½ Β 
pp. 947-950
Author(s): Β 
Zhen Wang β—½ Β 
Hai Yan Chen β—½ Β 
Lin Qiang Gao β—½ Β 
Xin Zou
Keyword(s): Β 
Crystal Structure β—½ Β 
Electron Microscopy β—½ Β 
Thermal Analysis β—½ Β 
Scanning Electron Microscopy β—½ Β 
Single Phase β—½ Β 
Hydrothermal Processing β—½ Β 
Optimal Conditions β—½ Β 
X Ray Diffraction β—½ Β 
X Ray β—½ Β 
Scanning Electron

BiFeO3 nanoparticles were successfully synthesized by a hydrothermal method by a mineralizer (KNO3). Structural characterization was performed by thermal analysis, powder X-ray diffraction (XRD) and scanning electron microscopy (TEM).The results showed that the products were perovskite structure BiFeO3 powders. Optimal conditions for the synthesis of single-phase BiFeO3 ceramics were obtained.

FABRICATION AND CHARACTERISTICS OF ALN NANOWIRES

2001 β—½ Β 
Vol 15 (30) β—½ Β 
pp. 1455-1458 β—½ Β 
Author(s): Β 
H. CHEN β—½ Β 
X. K. LU β—½ Β 
S. Q. ZHOU β—½ Β 
X. H. HAO β—½ Β 
Z. X. WANG
Keyword(s): Β 
Crystal Structure β—½ Β 
Electron Microscopy β—½ Β 
Transmission Electron Microscopy β—½ Β 
Single Phase β—½ Β 
X Ray Diffraction β—½ Β 
X Ray β—½ Β 
Selected Area Electron Diffraction β—½ Β 
Transmission Electron β—½ Β 
Sublimation Method β—½ Β 
Scanning Electron

Single phase AlN nanowires are fabricated by a sublimation method. They were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), typical selected area electron diffraction (SAED) and high-resolution transmission electron microscopy (HRTEM). The SEM and TEM images show that most of the nanowires have diameters of about 10–60 nm. The crystal structure of AlN nanowires revealed by XRD, SAED and HRTEM shows the AlN nanowires have a wurtzite structure.

scholarly journals Synthesis and Catalase Mimic Activity of MnO2 Nano Powder Prepared by Hydrothermal Process

2019 β—½ Β 
Vol 27 (2) β—½ Β 
pp. 228-237 β—½ Β 
Author(s): Β 
Rashed T. Rasheed β—½ Β 
Sariya D. Al-Algawi β—½ Β 
Rosul M. N.
Keyword(s): Β 
Crystal Structure β—½ Β 
Electron Microscopy β—½ Β 
Annealing Temperature β—½ Β 
Hydrothermal Process β—½ Β 
X Ray Diffraction β—½ Β 
X Ray β—½ Β 
Nano Powder β—½ Β 
Atomic Force β—½ Β 
Different Temperatures β—½ Β 
Scanning Electron

Manganese dioxide (MnO2) nanopowder has been synthesized by hydrothermal method. MnO2 was annealed at different temperatures (250, 400, 550, 700˚C). The crystal structure and surface morphology of these nanostructures were characterized by X-ray diffraction (XRD), Atomic Force Microscope (AFM) and Scanning Electron Microscopy (SEM). The catalase mimic activity (catalytic activity) of MnO2 against hydrogen peroxide (H2O2) was studied by using the new method and found that 400˚C is the best annealing temperature.

Thermoelectric properties and microstructure of large-grain Mg2Sn doped with Ag

MRS Proceedings β—½ Β 
2009 β—½ Β 
Vol 1166 β—½ Β 
Author(s): Β 
Haiyan Chen β—½ Β 
Nick Savvides
Keyword(s): Β 
Electron Microscopy β—½ Β 
Electrical Conductivity β—½ Β 
Single Phase β—½ Β 
Silver Content β—½ Β 
X Ray Diffraction β—½ Β 
Thermoelectric Power Factor β—½ Β 
X Ray β—½ Β 
Maximum Value β—½ Β 
Vertical Bridgman β—½ Β 
Scanning Electron

AbstractMg2Sn ingots, doped p-type by the addition of 0–1.0 at. % Ag, were prepared by the vertical Bridgman method at growth rates ∼0.1 mm/min. The crystalline quality and microstructure of ingots were analyzed by X-ray diffraction, scanning electron microscopy and energy-dispersive X-ray spectroscopy. The single-phase Mg2Sn ingots consist of highly oriented large grains. Measurements of the Hall coefficient, Seebeck coefficient Ξ±, and electrical conductivity Οƒ in the temperature range 80–700 K were conducted to study the dependence on the silver content, and to determine the thermoelectric power factor Ξ±2Οƒ which reached a maximum value 2.4Γ—10-3 W m-1 K-2 at 410 K for 1.0 at.% Ag content.

scholarly journals Preparation and Properties of Thick Film Resistors Containing Cadmium Glasses and Cadmium Oxide

10.1155/apec.7.29 β—½ Β 
1980 β—½ Β 
Vol 7 (1-3) β—½ Β 
pp. 29-33
Author(s): Β 
R. KuΕΎel β—½ Β 
J. Broukal
Keyword(s): Β 
Electron Microscopy β—½ Β 
Thermal Analysis β—½ Β 
Scanning Electron Microscopy β—½ Β 
Differential Thermal Analysis β—½ Β 
Electrical Properties β—½ Β 
Cadmium Oxide β—½ Β 
X Ray Diffraction β—½ Β 
Temperature Coefficient Of Resistance β—½ Β 
X Ray β—½ Β 
Scanning Electron

The electrical properties of resistors comprising finely divided CdO and cadmium glass, were investigated. The change in a temperature coefficient of resistance from about βˆ’500 ppm/℃ to +70 ppm/℃ was realized by addition of a further component to the resistor paste. Differential thermal analysis, X-ray diffraction analysis and scanning electron microscopy were used for studying crystalline phases in glass containing CdO.

scholarly journals Influence of Lithium on Nanosized Films of Fe2O3

10.1155/2011/967307 β—½ Β 
2011 β—½ Β 
Vol 2011 β—½ Β 
pp. 1-8 β—½ Β 
Author(s): Β 
A. Turković ◽  
M. Ivanda β—½ Β 
M. Bitenc β—½ Β 
Z. Crnjak Orel
Keyword(s): Β 
Electron Microscopy β—½ Β 
Morphological Changes β—½ Β 
X Ray Diffraction β—½ Β 
Metal Oxide Films β—½ Β 
X Ray β—½ Β 
Structural And Electrical Properties β—½ Β 
The Matrix β—½ Β 
The Impact β—½ Β 
Nanosized Films β—½ Β 
Scanning Electron

We have investigated nanosized thin films ofΞ±-Fe2O3(hematite) andΞ±-Fe2O3with addition of Li, by the impedance spectroscopy (IS), the Raman spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction (XRD). Combining all of these methods, and earlier obtained thermally stimulated currents (TSC) on the same samples, the dependence of structural and electrical properties upon percentage of Li added into the matrix of these metal-oxide films was found. The comparison of IS, Raman, SEM, XRD, and TSC results reveals the increase of the size of nanoparticles upon inducing 1% of Li inFe2O3matrix followed by the decrease of the size of nanoparticles in the case of samples with 10% Li, as well as the decrease (increase) of conductivity, respectively. These changes are explained by the structural and morphological changes caused by the impact ofLi+ions in the charge transfers. This material is suitable for application in the galvanic cell of second generation that could be used as solar-cells backup.

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