Author

Ehsan Gomaa

Faculty of science Ain shams University - Cited by 407 - Physics

Biography

Ehsan Gomaa department of Physics, Faculty of Science, Ain Shams University, Abbassia, 11566, Cario, Egypt. Worked on  Positron Annihilation Lifetime (PAL) spectroscopy has been used to investigate the effect of different concentrations of graphite and copper nano-particles in polyvinylchloride (PVC)/ butadiene-acrylonitrile copolymer (NBR) blends on free volume properties of PVC/NBR nano composites.
Title
Cited by
Year
Green ZnO nanorod material for dye degradation and detoxification of pharmaceutical wastes in water
R Mohammed, MEM Ali, E Gomaa, M MohsenJournal of Environmental Chemical Engineering 8 (5), 104295, 2020202
43
2020
A study of annealing stages in Al–Mn (3004) alloy after cold rolling using positron annihilation lifetime technique and Vickers microhardness measurements
E Gomaa, M Mohsen, AS Taha, MM MostafaMaterials Science and Engineering: A 362 (1-2), 274-279, 2003200
33
2003
Study of electrical, mechanical, and nanoscale free‐volume properties of NBR and EPDM rubber reinforced by bentonite or kaolin
DE El‐Nashar, E Gomaa, SL Abd‐El‐MessiehJournal of Polymer Science Part B: Polymer Physics 47 (18), 1825-1838, 2009200
30
2009
Free-volume properties of epoxy composites and its relation to macrostructure properties
J Asaad, E Gomaa, IK BishayMaterials Science and Engineering: A 490 (1-2), 151-156, 2008200
21
2008
Effect of metal type and content on mechanical, electrical and free-volume properties of styrenated polyesters
SH Mansour, E Gomaa, IK BishayJournal of materials science 42, 8473-8480, 2007200
18
2007
Study the properties of Cu-Zn ferrite substituted with rare earth ions by using positron annihilation analysis
AM Samy, E Gomaa, N MostafaThe Open Ceramic Science Journal 1 (1), 2010201
17
2010
Spectroscopic studies of complex compounds derived from the tribochemistry reactions of KBr and HgX2 (Cl, Br, I, CN) with crown ethers (DC18C6 and DB18C6)
MM Mostafa, EAH Gomaa, MA Mostafa, FI El-DossoukiSpectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 55 ( …, 1999199
14
1999
Positron annihilation lifetime and differential scanning calorimetric study of immiscible NBR/PE blends
E Gomaa, EH Aly, M MohsenJournal of Polymer Science Part B: Polymer Physics 47 (3), 227-238, 2009200
13
2009
Complexes of some crown ethers with Hg (II) chloride, bromide, iodide and cyanide
MM Mostafa, EAH Gomaa, MA Mostafa, FI El-DossoukiSythesis and Reactivity in Inorganic and Matel-Organic Chemistry 30 (1), 157-174, 2000200
13
2000
Positron annihilation Lifetime and Fourier transform infrared spectroscopic studies on Bi2O3–B2O3 glasses
M Mohsen, E Gomaa, MS Al-Kotb, M Abdel-Baki, N FathyJournal of Non-Crystalline Solids 436, 1-8, 2016201
12
2016
Radiation copolymerization of hydrogels based in polyacrylic acid/polyvinyl alcohol applied in water treatment processes
NA Maziad, M Mohsen, E Gomaa, R MohammedJ Mater Sci Eng A 5, 381-390, 2015201
10
2015
Application of positron annihilation spectroscopy to study the recovery of commercial pure Al and Al-0.96 wt.% Si alloys
S Mohamed, N Mostafa, E Gomaa, M MohsenJournal of materials engineering and performance 12, 95-98, 2003200
10
2003
Correlation between free-volume parameters and physical properties of polyethylene-nitrile rubber blend
E Gomaa, N Mostafa, M Mohsen, M MohammedJournal of materials engineering and performance 13, 583-587, 2004200
10
2004
Dielectric properties and positron annihilation study of waste polyethylene terephthalate composites filled with carbon black
AA Reffaee, AA Ward, DE El-Nashar, SL Abd-El-Messieh, KNA Nour, ...Kgk-Kaut Gummi Kunst 67 (4), 3-47, 2014201
9
2014
A study on commercial pure Al (1050) after cold rolling at room temperature with various deformations using positron annihilation
E Gomaa, N Mostafa, M Mohsen, AS TahaJournal of materials engineering and performance 12, 10-15, 2003200
9
2003
The use of positron annihilation lifetime technique to study the effect of doping metal salts on polyhydroxamic acid polymers
A Mazzroua, N Mostafa, E Gomaa, M MohsenJournal of applied polymer science 1 (9), 2095-2101, 2001200
8
2001