M. Gaffar

发表

Doping‐induced‐effects on conduction mechanisms in incommensurate ammonium zinc chloride crystals

S. Bin Anooz, M. Gaffar, A. Abu El-Fadl, 2007 .

Optical absorption spectra and related parameters of ammonium zinc chloride crystal in the antiferroelectric and commensurate phases

S. Bin Anooz, M. Gaffar, A. Abu El-Fadl, 2003 .

Specific heat and electrical resistivity of pure and doped lithium-ammonium sulphate single crystals

M. Gaffar, A. A. Fadl, G. A. Mohamed, 1996 .

Structural, electrical, dielectric and optical investigations of lithium iodate single crystals

M. Gaffar, A. A. El-Fadl, 1999 .

Ion dynamics and structure-dependent conductivity scaling properties in polycrystalline LiK1-xRbxSO4

Koji Yamada, T. Okuda, Mohamad M. Ahmad, 2007 .

Bulk- and electrode-limited conduction mechanisms in different phases of Mn2+-doped potassium tetrachlorozincate crystal

M. Mostafa, M. Gaffar, A. Abu El-Fadl, 2005 .

Mechanism of the dc conduction in undoped and Sr2+ doped ammonium zinc chloride crystal

M. Gaffar, A. A. El-Fadl, S. B. Anooz, 2004 .

The non-isotropic character of electric and dielectric properties of ammonium zinc chloride crystal

M. Gaffar, A. A. El-Fadl, S. B. Anooz, 2004 .

The effect of Cu addition on the thermoelectric power and electrical resistivity of Al–Mg–Si balanced alloy: A correlation study

E. F. A. Zeid, M. Gaffar, M. Mostafa, 2007 .

Investigations on the existence of a low-temperature phase transition in triglycine sulphate single crystals

M. Gaffar, A. Mohamed, L. Al-Houty, 1988 .

The effect of doping crystals of tgs with some di- and trivalent ions on its: (i) dielectric constant and a.c. Conductivity

M. Gaffar, L. Al-Houty, M. Al-Muraikhi, 1987 .

Dielectric constant, loss factor and ac conductivity of Ni2+‐doped K2ZnCl4 crystals in the ferroelectric‐commensurate, incommensurate and normal phases

M. Gaffar, A. Abu El-Fadl, M. Mostafa, 2006 .

Mn2+doping-induced-effects on commensuration and incommensuration of potassium zinc chloride crystal

M. Mostafa, M. Gaffar, A. Abousehly, 2005 .

Investigations on the existence of a high-temperature phase transition in ammonium sulphate crystals

M. Gaffar, G. A. Mohamed, M. A. El-maghraby, 1994 .

Effect of doping on the structural changes associated with the high temperature phase transition of LiNH4SO4 crystals

Y. Badr, A. M. Mebed, M. Gaffar, 1995 .

Thermal properties of pure and doped lithium-ammonium sulphate single crystals

A. M. Mebed, M. Gaffar, A. A. El-Fadl, 1995 .

Vibration spectra of water molecules in the paraelectric phase of K4[Fe(CN)6]·3H2O

M. Gaffar, M. Abd-Elrahman, 2001 .

Vibration Spectra of Ferrocyanide Ions in the Paraelectric Phase of K4[Fe(CN)6] · 3H2O

M. Gaffar, M. Abd-Elrahman, 2001 .

The effect on the polarisation and piezoelectricity of triglycine sulphate crystals of doping with some divalent and trivalent ions

M. Gaffar, A. Mohamed, L. Al-Houty, 1988 .

Effect of Doping and Irradiation on Optical Parameters of Triglycine Sulphate Single Crystals

M. Gaffar, A. A. El-Fadl, A. El-Fadl, 1999 .

TIJE EFFECT OF DOPING CRYSTALS OF TGS WITH SOME DI- AND TRIVALENT IONS ON ITS: (II) POLARIZATION AND PIEZOELECTRICITY

M. Gaffar, A. Mohamed, L. Al-Houty, 1987 .

Absorption spectra and optical parameters of lithium–potassium sulphate single crystals

M. H. Omar, M. Gaffar, A. A. El-Fadl, 1999 .

Electrical conductivity and pyroelectricity of lithium–potassium sulphate single crystal in the temperature range 300–950 K

M. H. Omar, M. Gaffar, A. A. El-Fadl, 1999 .

Electrical resistivity of single-crystal lithium ammonium sulphate between 300 and 500 K

M. Gaffar, A. A. El-Fadl, 1995, Journal of Materials Science.

Phase analysis study of copper ferrite aluminates by X-ray diffraction and Mössbauer spectroscopy

M. Almokhtar, M. Gaffar, A. M. Abdalla, 2004 .

Influence of strontium doping on the indirect band gap and optical constants of ammonium zinc chloride crystals

M. Gaffar, A. A. El-Fadl, S. B. Anooz, 2003 .

Electric, dielectric and optical studies of the lower phase transition of lithium ammonium sulphate single crystals

M. Gaffar, A. A. El-Fadl, 1999 .

Ferroelectric behaviour of triglycine sulphate crystals containing low concentrations of metal ions near the transition temperature

M. A. Gaffar, S. A. Mansour, A. Abu El-Fadl, 1989 .

Investigation of the pyroelectric and piezoelectric properties of triglycine sulphate single crystals containing organic molecules

M. Gaffar, A. A. El-Fadl, 1989 .

Critical Behaviour of Dielectric Permittivity and Spontaneous Polarization of Triglycine Sulphate Single Crystals Doped with Organic Molecules

M. Gaffar, A. A. El-Fadl, G. F. Al‐Noaimi, 1989 .

Growth of pure and doped triglycine sulphate single crystals

M. Gaffar, A. A. El-Fadl, 1984 .

The Specific Heat of Pure and Doped Triglycine Sulphate Single Crystals

M. Gaffar, A. A. El-Fadl, M. Mebed, 1987 .

Thermal Diffusivity of Pure and Doped TGS Crystals

M. Gaffar, M. Mebed, A. Abu‐El‐Fadl, 1987 .

Growth and characterization of undoped, Sr2+‐, and Mn2+‐doped ammonium tetrachlorozincate

S. Bin Anooz, M. Gaffar, A. Abu El-Fadl, 2005 .

Mn 2+ -Doping Effects on Commensuration and Incommensuration of Ammonium Zinc Chloride Crystal

M. Gaffar, A. A. El-Fadl, S. B. Anooz, 2004 .

Electron irradiation‐induced effects on optical spectra of (NH4)2ZnCl4: x Sr2+ single crystals

S. Bin Anooz, M. Gaffar, A. Abu El-Fadl, 2003 .

The double-peak phenomenon of the phase transition of Rb substituting K in LiKSO4, competition between Rb sub-lattice and smearing the phase transition

T. Okuda, Mohamad M. Ahmad, M. Gaffar, 2007 .

Effects induced by chemical non‐stoichiometry and γ‐irradiation on the habit and unit cell parameters of ammonium tetrachlorozincate

M. Gaffar, A. A. El-Fadl, S. B. Anooz, 2006 .

Effects induced by 𝛄-irradiation on intraband transitions in Sr2+-doped ammonium zinc chloride crystals

M. Gaffar, A. A. El-Fadl, S. B. Anooz, 2003 .

Correlative study of the thermoelectric power, electrical resistivity and different precipitates of Al–1.12Mg2Si–0.35Si (mass%) alloy

E. F. Abo Zeid, M. Gaffar, M. Mostafa, 2015, Journal of Thermal Analysis and Calorimetry.

Composition, microstructure, Vickers hardness and activation energies of Co–Cu alloys fabricated by arc melting technique

T. Asafa, A. Abd-Elnaiem, A. M. Mebed, 2012 .

Precipitation kinetics of Al–1.12 Mg2Si–0.35 Si and Al–1.07 Mg2Si–0.33 Cu alloys

A. Gaber, E. F. A. Zeid, M. Gaffar, 2007 .

Effects induced by γ-irradiation and thermal treatment on the infrared spectra of ferrocene in its disordered state

M. Gaffar, M. Abd-Elrahman, 2004 .

Influence of radiation-induced effects on electric and dielectric properties of ferrocene

M. Gaffar, A. Hussien, 2001 .

A new phase transition at about the room temperature and irregular thermal behaviour in the metastable state of γ-irradiated ferrocene

M. Gaffar, A. Hussien, 2001 .

Thermal analysis study for the phase determination and instable to metastable transformation of the Co–13Cu alloy

M. Gaffar, M. Abd-Elrahman, A.M. Mebed, 2009 .

Synthesis of Silver and Gold Nanoparticles through Reduction Method using Bioreductor of Leaf Extract of Ketapang (Terminalia catappa)

M. Gaffar, M. Zakir, M. S. Lembang, 2014 .

Direct experimental confirmation of the critical behaviour of antiphase domain boundaries at the second order phase transition of Al–Fe binary alloys

A. M. Mebed, M. Gaffar, 2005 .