Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Karimat El-Sayed"'
Publikováno v:
Journal of Magnetism and Magnetic Materials. 423:291-300
Nano-crystalline NiFe 2 O 4 was synthesized by citrate and sol–gel methods at different annealing temperatures and the results were compared with a bulk sample prepared by ceramic method. The effect of methods of preparation and different annealing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25a4a0ce30b6c45e15f34c340514ba4d
https://doi.org/10.1016/j.jmmm.2016.09.100
https://doi.org/10.1016/j.jmmm.2016.09.100
Autor:
Karimat El-Sayed, Mohamed Bakr Mohamed
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 28:2121-2131
Nanocrystalline Ni1−x Zn x Fe1.5Cr0.5O4 (0 ≤ x ≤ 0.5) ferrite was prepared using a citrate method. The influence of Zn2+ ion substitution on structure, magnetic, and electric properties of the Ni1−x Zn x Fe1.5Cr0.5O4 ferrite has been investig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2139cf158022d87116d86051e0a24c4a
https://doi.org/10.1007/s10948-015-3013-x
https://doi.org/10.1007/s10948-015-3013-x
Publikováno v:
Superlattices and Microstructures. 75:311-323
Nanocrystalline Se– x Fe ( x = 3 and 5 wt%) samples were prepared by solid state reaction. XRD revealed the presence of two phases; FeSe 2 and Se. HRTEM showed the epitaxial growth of FeSe 2 on Se. The magnetization measurements showed ferromagneti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8783869c59b7eb974f0667e756c16406
https://doi.org/10.1016/j.spmi.2014.07.005
https://doi.org/10.1016/j.spmi.2014.07.005
Publikováno v:
Advances in Materials Physics and Chemistry. :237-257
A homemade ball mill was constructed and optimized in order to prepare nano crystallite size of tungsten heavy alloys, with composition of 90W-7Ni-3Fe and 90W-7Ni-3Co in wt%. The samples were mechanically alloyed under high purity of argon atmosphere
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb215536db9c4d85216e4131b6c75eef
https://doi.org/10.4236/ampc.2014.412027
https://doi.org/10.4236/ampc.2014.412027
Autor:
Karimat El-Sayed, Mohamed Bakr Mohamed
Publikováno v:
Composites Part B: Engineering. 56:270-278
Polyaniline (PANI)-Ni0.5Zn0.5Fe1.5Cr0.5O4 (NZFCO) nanocomposites are conducting polymer–ferrite, which belongs to magneto-polymeric materials. They have very useful electromagnetic properties with new functions. The nanocomposites were synthesized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::528f7b182716ac784125de9fde12c028
https://doi.org/10.1016/j.compositesb.2013.08.038
https://doi.org/10.1016/j.compositesb.2013.08.038
Publikováno v:
Materials Research Bulletin. 48:2383-2389
InTe compound doped by 10% of Fe or Co respectively was synthesized. X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM), energy dispersive X-ray (EDX), vibrating sample magnetometer (VSM) and Kiethley
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a7a42ceae3f48b0d3b965ffd62c080b
https://doi.org/10.1016/j.materresbull.2013.02.071
https://doi.org/10.1016/j.materresbull.2013.02.071
Autor:
Mohamed Bakr Mohamed, Karimat El-Sayed
Publikováno v:
Materials Research Bulletin. 48:1778-1783
xBaTiO3 + (1 − x)Ni0.5Zn0.5Fe1.5Cr0.5O4 (x = 0.35, 0.5, 0.65) nanocomposites were synthesized by the sol–gel method. The two corresponding intended nanocomposites phases were confirmed by X-ray diffraction, no other foreign phases were present. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49391f7e61f693c82bf0a8d1d9019c14
https://doi.org/10.1016/j.materresbull.2013.01.050
https://doi.org/10.1016/j.materresbull.2013.01.050
Publikováno v:
Journal of Alloys and Compounds. 530:102-106
The structural, magnetic and electric properties of Fe or Co doped InSe system has been studied. The X-ray diffraction patterns of the doped samples indicate the presence of InSe 0.9 Fe 0.1 or InSe 0.9 Co 0.1 , together with a non-magnetic minor phas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f96683c546fa856bb3d1dd037113f75
https://doi.org/10.1016/j.jallcom.2012.03.099
https://doi.org/10.1016/j.jallcom.2012.03.099
Publikováno v:
Powder Diffraction. 17:186-190
Samples of amorphous Se, SSe40, SSe30, and SSe20were synthesized and were then crystallized by annealing at 373 K for 5, 20, and 120 mins. The results showed that the changes in the structural and microstructural parameters for samples SSe40, and SSe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14eaf5019391292d0d0d2f7e5cc58007
https://doi.org/10.1154/1.1479739
https://doi.org/10.1154/1.1479739
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 216:146-153
A series of epitaxial Co/Cu(111) superlattices has been grown on Al2O3 (112̅0) substrates with a Nb(110) buffer layer by molecular-beam epitaxy. By applying profile analysis technique it was possible to determine: (1) the crystallite size, (2) the m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74a97bd1405dfab303b5fee11ba6b6be
https://doi.org/10.1524/zkri.216.3.146.20322
https://doi.org/10.1524/zkri.216.3.146.20322