Effect Partial Substitution of Calcium by &lt;i&gt;Cadmium&lt;/i&gt; on Dielectrically Properties of Li0.4Cd0.6Ba2Ca2Cu3O10+δ System

Rihab Nassr Fadhil; Kareem Ali Jasim; Auday H. Shaban

doi:10.4028/www.scientific.net/MSF.1050.35

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Publication Date

Tue Jan 18 2022

Journal Name

Materials Science Forum

Volume

1050

DOI

10.4028/www.scientific.net/MSF.1050.35

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(1)

Effect Partial Substitution of Calcium by Cadmium on Dielectrically Properties of Li0.4Cd0.6Ba2Ca2Cu3O10+δ System

Rihab Nassr Fadhil

Shatha H. Mahdi

Kareem Ali Jasim

Auday H. Shaban

...Show More Authors

In this article the conventional "solid-state reaction" method was used to synthesize perovskite Li_0.4Cd_0.6Ba₂Ca₂Cu₃O_10+δ. Four main types of compounds were obtained by physically replacing calcium oxide with cadmium in proportions 0, 0.03, 0.06 and 0.09, the pure Li_0.4Cd_0.6Ba₂Ca₂Cu₃O_10+δ phase, and the phases Li_0.4Cd_0.6Ba₂Ca_1.97Cd_0.03Cu₃O_10+δ and Li_0.4Cd_0.6Ba₂Ca_1.94Cd_0.06Cu₃O_10+δ and Li_0.4Cd_0.6Ba₂Ca_1.91Cd_0.09Cu₃O_10+δ ,respectively from mixing their constituent oxides and pressed into pelts and then sintered in the furnace at 850 degrees Celsius for 90 hours: These samples have been studied for their original dielectrically properties. The real dielectric constant, dielectric loss factor, and tangent were calculated in the frequency range (50 to 1000000 HZ). It was found that the partial substitution of cadmium oxide plays an important role in enhancing dielectrically properties.

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Publication Date

Thu Dec 01 2022

Journal Name

Microbiology And Biotechnology Letters

Production and Identification of Secondary Metabolite Gliotoxin-Like Substance Using Clinical Isolates of Candida spp.

Safaa Al-Deen

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(2)

Publication Date

Tue Jan 01 2019

Journal Name

Indian Journal Of Public Health Research & Development

The Role of Salivary Cortisol and Mutans Streptococci in the Development of Early Childhood Caries

Abeer A.

Aseel H. M. J.

Abbas S.

...Show More Authors

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(3)

Publication Date

Mon Sep 10 2018

Journal Name

Iraqi Journal Of Physics

Influence of cobalt substitution on the properties of Ni0.95-xCoxCu0.05Fe2O4 ferrite nanoparticles

Ferrite nanoparticles

solid-state reactions method

cubic spinel ferrites

XRD

AFM

FTIR

Vickers hardness.

Najat A.

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Cobalt substituted nickel copper ferrite samples with general formula Ni0.95-xCoxCu0.05Fe2O4, where (x= 0.00, 0.01, 0.02, 0.03, 0.04 and 0.05) were prepared by solid-state reactions method at 1373 K for 4h. The samples prepared were examined by X-ray diffraction (XRD(, atomic force microscope (AFM), Fourier transform infra-red spectroscopy (FTIR) and Vickers hardness. X-ray diffraction patterns confirm the formation of a single phase of cubic spinel structure in all the prepared samples . XRD analysis showed that the increase in the cobalt concentration causes an increase in the lattice constant, bulk density (ρm) and the x-ray density (ρx), whereas porosity (p) and crystallite size (D) decrease. The Topography of the surface observed

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(1)

Publication Date

Tue Jun 20 2023

Journal Name

Baghdad Science Journal

Visible-Light-driven Photocatalytic Properties of Copper(I) Oxide (Cu2O) and Its Graphene-based Nanocomposites

Cu2O

Graphene-based nanocomposites

Nanocrystals

Photocatalytic evaluation

Visible-Light

Abdul Waheed

Gul

Elyor

Basant

Aigul Baimagambetova

Ahmad Hosseini

...Show More Authors

In this study, an improved process was proposed for the synthesis of structure-controlled Cu2O nanoparticles, using a simplified wet chemical method at room temperature. A chemical solution route was established to synthesize Cu2O crystals with various sizes and morphologies. The structure, morphology, and optical properties of Cu2O nanoparticles were analyzed by X-ray diffraction, SEM (scanning electron microscope), and UV-Vis spectroscopy. By adjusting the aqueous mixture solutions of NaOH and NH2OH•HCl, the synthesis of Cu2O crystals with different morphology and size could be realized. Strangely, it was found that the change in the ratio of de-ionized water and NaOH aqueous solution led to the synthesis of Cu2O crystals of differen

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Publication Date

Sat Apr 01 2023

Journal Name

Nano Biomedicine And Engineering

Effects of Silver Nanoparticles Synthesized from Phenolic Extract of Agaricus bisporus Against Pathogenic Bacteria and Yeasts

Keywords:silver nanoparticles

phenolic compound

synergistic effect

Agaricuss bisporus

pathogenic bacteria

yeasts

Enass Ghassan

Sura muayad

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Publication Date

Tue Oct 01 2013

Journal Name

Proceedings Of The International Astronomical Union

The infrared K-band identification of the DSO/G2 source from VLT and Keck data

A.

M.

S.

M.

K.

N.

B.

S.

L.

M.

A.

M.

G.

V.

M.

L.

R.

B.

M.

C.

D.

J.

C.

Y. E.

K.

A.

...Show More Authors

AbstractA fast moving infrared excess source (G2) which is widely interpreted as a core-less gas and dust cloud approaches Sagittarius A* (Sgr A*) on a presumably elliptical orbit. VLT <italic>Ks</italic>-band and Keck <italic>K</italic>′-band data result in clear continuum identifications and proper motions of this ∼19<italic>m</italic> Dusty S-cluster Object (DSO). In 2002-2007 it is confused with the star S63, but free of confusion again since 2007. Its near-infrared (NIR) colors and a comparison to other sources in the field speak in favor of the DSO being an IR excess star with photospheric continuum emission at 2 microns than a ... Show More

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(3)

(1)

Publication Date

Tue Sep 05 2017

Journal Name

Cell Adhesion & Migration

Periodontal pathogens promote epithelial-mesenchymal transition in oral squamous carcinoma cells in vitro

A. A.

R. M.

G.

P. R.

M. R.

...Show More Authors

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(77)

(30)

Publication Date

Tue Jun 01 2021

Journal Name

Baghdad Science Journal

Cobalt Effect on the Growth of Cadmium Oxide Nanostructure Prepared by Spray Pyrolysis Technique

Cobalt

Cadmium Oxide

Thin Films

Spray pyrolysis

Optical Properties

Jamal M.

A. S.

Amina M.

...Show More Authors

Spray pyrolysis technique (SPT) is employed to synthesize cadmium oxide nanostructure with 3% and 5% Cobalt concentrations. Films are deposited on a glass substrate at 350 ᵒC with 150 nm thickness. The XRD analysis revealed a polycrystalline nature with cubic structure and (111) preferred orientation. Structural parameters represent lattice spacing, crystallite size, lattice parameter and dislocation density. Homogeneous surfaces and regular distribution of atoms were showed by atomic force microscope (AFM) with 1.03 nm average roughness and 1.22 nm root mean square roughness. Optical properties illustrated a high transmittance more than 85% in the range of visible spectrum and decreased with Co concentration increasing. The absorption

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Publication Date

Thu Aug 18 2022

Journal Name

Journal Of Interdisciplinary Mathematics

New subclasses for estimates coefficients of m-fold symmetric bi-univalent functions and Fekete-Szego problems

Ali Musaddak

Kassim A.

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(1)

Publication Date

Sun Jan 01 2023

Journal Name

Technologies And Materials For Renewable Energy, Environment And Sustainability: Tmrees22fr

Investigate the structural properties of Tl1-xHgxSr2Ca2Cu3O8+δ compound by using Scherrer modified equation

Jaafar

Maher

Hassan

Mohammed

Kareem

Auday

Riyam

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