Browsing by Author "Al-Houty, L. I."
Now showing items 1-5 of 5
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Diffuse Phase Transition In Non-Stoichiometric LiRbSO4 Crystals
Al Houty, L.; Kassem, M. E.; El-Muraikhi, M.; Mohammad, A. A. ( Qatar University , 1992 , Article)The influence of changing the ratio of Li2S04 on the structure transition of (RbxLi1-x)2S04 , LRS crystals, where x ranged from 0.1 to 0. 7, was studied by thermal analysis techniques in the temperature range 300 - 600 K. ... -
The effect of doping crystals of tgs with some di- and trivalent ions on its: (i) dielectric constant and a.c. Conductivity
Gaffar, M. A [محمد عبد العزيز جعفر]; Al-Houty, L. I.; Al-Muraikhi, M. ( Qatar University , 1987 , Article)The problem of the existence of a new ferroelectric phase transition at low temperatures in TGS crystals is discussed. The influence of some inorganic divalent and trivalent ions presented in the lattice of TGS on dielectric ... -
The effect of doping crystals of tgs with some di- and trivalent ions on its: (ii) polarization and piezoelectricity
Gaffar, M. A [محمد عبد العزيز جعفر]; Mohamed, A. A.; Al-Muraikhi, M.; Al-Houty, L. I. ( Qatar University , 1987 , Article)The polarization, coercive field,piezoelectricity and electromechanical coupling for pure and doped single crystals of TGS arp investigated in the temperature range 77-325 K. The influence of the divalent ions Ni 2+, Cu2 ... -
Mossbauer Effect Study of the Hyper fine Structure of the Different Phases of Iron in the Portland Cement Produced in Qatar
Eissa, N. A. [نبيل عيسى]; Sallam, H. A.; Al-Houty, L.; Al-Mauraikhy, M. ( Qatar University , 1981 , Article)Various samples of the raw materials used in the manufacture of Portland cement in Qatar, the clinker produced and the cement itself were studied by using Mossbauer Effect and X-ray diffraction analysis in order to investigate ... -
Multielement Analysis Of Suspended Particulates In Doha (Qatar) Air Before And During The Gulf War
Abou Leila, H; Al-Houty, L.; El-Samman, H. ( Qatar University , 1994 , Article)Efforts have been made to study the effect on Qatar atmosphere from the burning of Kuwait oil fields during the Gulf war. Analysis of suspended air particulates was done by X-ray fluorescence technique. Eight elements were ...