Search Results - "Bakr, Mohamed"

Effect of Er-doping on structural, magnetic and dielectric properties of nano CoFe2O4 by Mohamed, Mohamed Bakr

“…Nano Er-doped CoFe 2 O 4 has been synthesized by a sol–gel procedure at 700 °C. The effect of Er-doping on the lattice parameter, bond lengths and bond angles…”
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Effect of excess oxygen content within different nano-oxide additives on the structural and optical properties of PVA/PEG blend by Mohamed, Mohamed Bakr, Abdel-Kader, M. H.

“…Different nano-oxides (Cr 2 O 3 , NiO, Co 3 O 4 ) were added to polyvinyl alcohol/polyethylene glycol (70/30 wt%) blend. Rietveld profile analysis method was…”
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Effect of doping and changing of the annealing temperature on the structural and optical properties of ZnS by Mohamed, Mohamed Bakr

“…Nano ZnS doped with Co, Mn, or Fe have been synthesized via thermolysis technique at different annealing temperatures (300, 400, and 500°C). The effect of…”
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Exploring the physical properties of PVA/PEG polymeric material upon doping with nano gadolinium oxide by Heiba, Zein K., Bakr Mohamed, Mohamed, Ahmed, Sameh.I.

“…Nano gadolinium oxide doped polyvinyl alcohol/polyethylene glycol blend (PVA/PEG) was prepared by sol–gel and casting methods. Rietveld refinement method was…”
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Structural, magnetic, and dielectric properties of nanocrystalline Cr-substituted Co0.8Ni0.2Fe2O4 ferrite by Maher Wahba, Adel, Bakr Mohamed, Mohamed

“…The structural, magnetic, and electric properties of Co0.8Ni0.2CryFe2−yO4 (0.00≤y≤0.75; step 0.15) prepared via citrate precursor method are investigated. The…”
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Modification of the optical and structural characteristics of ZnMn2O4 upon combining with nano-MnS by Heiba, Zein K., Mohamed, Mohamed Bakr, Badawi, Ali

“…(1-x) ZnMn 2 O 4 /xMnS nanosamples were formed using co-precipitation and molten solid-state methods. The possibility of forming solid solution or…”
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Cation distribution and magnetic properties of nanocrystalline gallium substituted cobalt ferrite by Mohamed, Mohamed Bakr, Yehia, M.

“…•Single phase Ga-doped nano cobalt ferrite was synthesized by sol–gel method.•Rietveld refinement and ME spectroscopy suggest a partially inverse…”
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Structure, optical and electronic characteristics of iron-doped cadmium sulfide under nonambient atmosphere by Heiba, Zein K., Mohamed, Mohamed Bakr, Badawi, Ali

“…Iron-doped nano CdS was prepared in air and underflow of nitrogen applying the thermolysis technique. The impact of air and nitrogen atmosphere on the…”
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Structural and magnetic characterization and cation distribution of nanocrystalline CoxFe3−xO4 ferrites by Wahba, Adel Maher, Bakr Mohamed, Mohamed

“…Structural and magnetic properties have been investigated for CoxFe3−xO4 nanoferrites (x=0.5–1.2, with a step increment of 0.1) prepared by a citrate-precursor…”
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Exploring the direct effect of intermediate band semiconductor materials on the structural, thermal and optical properties of PMMA nanocomposite by Abdel-Kader, M. H., Mohamed, Mohamed Bakr

“…In this work, polymethylmethacrylate (PMMA) doped with SnS 2 , Sn 0.75 Fe 0.25 S 2 , and Sn 0.75 Cr 0.25 S 2 nanoparticles films were prepared using both…”
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Changes in structural, optical and magnetic properties of nano-CuS upon doping with Mn and Fe: a comparative study by Heiba, Zein K., Mohamed, Mohamed Bakr

“…Nano-CuS doped with Mn or Fe (Cu 1– x (Mn or Fe) x S; 0 ≤  x  ≤ 0.2) was prepared by a thermolysis method. The structural, optical and magnetic properties were…”
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Effect of V and Y doping on the structural, optical and electronic properties of CdS (hexagonal and cubic phases) by Heiba, Zein K., Mohamed, Mohamed Bakr, Mostafa, Nasser Y.

“…Nano Cd 1− x Y x S and Cd 1− x V x S (0 ≤  x  ≤ 0.2) systems were synthesized by a thermolysis method. X-ray phase analysis indicated the presence of two…”
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Impact of preparation temperature on the structure, optical and electronic characteristics of Zn0.9V0.1S nanoparticles with Williamson-Hall model mechanistic view by Heiba, Zein K., Mohamed, Mohamed Bakr, Badawi, Ali

“…In this work, the impact of preparation temperature on the structural, optical, and electronic characteristics of vanadium doped ZnS nanoparticles has been…”
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Controlling the structural, linear and nonlinear optical and photoluminescent characteristics of NiCo2O4 via alloying with MnS by Heiba, Zein K., Mohamed, Mohamed Bakr, Farag, Noura M., Badawi, Ali

“…(1 −  x )NiCo 2 O 4 / x MnS samples were formed using the hydrothermal and thermolysis process. Using X-ray diffraction data, phase identification disclosed a…”
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Effect of transition metal (TM = Mn, Co, Ni) doping on the structural, magnetic, and shielding properties of nano Er2O3 by Heiba, Zein K., Mohamed, Mohamed Bakr, Mouhammad, Saif A., Badawi, Ali

“…The current work aims to explore the effect of the transition metal doping on the structural, magnetic, and shielding properties of nano Er 2 O 3 . Nano Er…”
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Structural, dielectric, linear and nonlinear optical parameters of Zn0.9Cu0.1S filled PVA/CMC/PEG blends by El-naggar, A. M., Heiba, Zein K., Kamal, A. M., Mohamed, Mohamed Bakr

“…Casting and solid-state reaction methods were used to prepare composites of PVA/CMC/PEG/x wt% Zn 0.9 Cu 0.1 S (x = 0, 1, 3, 5, 10). The nanofiller Zn 0.9 Cu…”
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Effect of magnesium deficiency on magnetic properties tuning and cation redistributions of magnesium ferrite nanoparticles by Heiba, Zein K., Mohamed, Mohamed Bakr

“…Magnesium nano ferrite Mg 1−x Fe 2 O 4 with deficient Mg (0 ≤ x ≤ 0.5) has been prepared with the co-precipitation method. The Mg deficiency was examined from…”
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Structural, optical, mechanical, and electronic properties of Cr-doped alumina by Heiba, Z. K., Mohamed, Mohamed Bakr, Wahba, Adel Maher

“…Cr-doped α-Al 2 O 3 samples (Al 2− x Cr x O 3 , 0 ≤ x ≤ 0.25; step 0.05) were synthesized by citrate-precursor autocombustion method. The lattice parameters,…”
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Structural phase analysis, optical and magnetic properties of nano Mn-doped LiFe5O8 by Heiba, Zein K., Mohamed, Mohamed Bakr

“…Nano Mn-doped LiFe 5 O 8 was synthesized by citrate procedure. Structural and microstructure investigations have been performed applying X-ray diffraction…”
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Effect of Gamma radiation on structural and optical parameters of Sm2O3:Mn/PVA nanocomposite film by Heiba, Zein K., Mohamed, Mohamed Bakr

“…Nanocomposite Sm 2 O 3 :Mn/PVA films were prepared by sol–gel and casting methods. The influence of low Gamma-radiation doses (γ-dose, 0–1000 Gy) on structural…”
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