A Study of some physical properties of Lithium diphenyl carbazide complex compound / Nehal Ragab Abdel Aziz ; Supervised Farouk Elkabbany , Marwa Hafez Abdelmegeid

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Nehal Ragab Abdelaziz

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TextLanguage: English Publication details: Cairo : Nehal Ragab Abdelaziz , 2015Description: 139 P. : charts ; 25cmOther title:

دراسة لبعض الخواص الفيزيائية لمركب الدايفينيل كاربازايد المحتوى على الليثيوم [Added title page title]

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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics Summary: A completely new lithium-diphenyl carbazide complex (LiDPC) samples are prepared and studied here over a temperature range extended between room temperature and its melting point ~120{u00BA} C. A set of the different techniques are successfully used in this investigation. These include electrical measurements (d.c resistance, dielectric constant and pyroelectric current), differential thermal analysis (DSC, DTA, TGA, and TMA), IR spectroscopy and X-ray diffraction analysis. Some important electrical parameters are measured for a set of LiDPC samples. Theses parameters include d.c resistance, dielectric constant, and pyroelectric current. The variations of these parameters with temperature are studied explicitly during a set of heating and cooling runs starting from roomtemperature up to the melting point (~ 120{u00BA} C). The results obtained showed that there are two different states of different electric conductance. It was found that, very fast transformation takes place from one state to the other. In the first state, the sample possesses high resistance quickly reduced (during the elevation of temperature) due to the polarizability anomalies. Also, the pyroelectric current measurements showed that LiDPC samples are more pyroelectric than pure DPC samples

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Holdings
Item type	Current library	Home library	Call number	Copy number	Status	Date due	Barcode
Thesis	قاعة الرسائل الجامعية - الدور الاول	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.12.20.M.Sc.2015.Ne.S (Browse shelf(Opens below))		Not for loan		01010110067756000
CD - Rom	مخـــزن الرســائل الجـــامعية - البدروم	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.12.20.M.Sc.2015.Ne.S (Browse shelf(Opens below))	67756.CD	Not for loan		01020110067756000

Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics

A completely new lithium-diphenyl carbazide complex (LiDPC) samples are prepared and studied here over a temperature range extended between room temperature and its melting point ~120{u00BA} C. A set of the different techniques are successfully used in this investigation. These include electrical measurements (d.c resistance, dielectric constant and pyroelectric current), differential thermal analysis (DSC, DTA, TGA, and TMA), IR spectroscopy and X-ray diffraction analysis. Some important electrical parameters are measured for a set of LiDPC samples. Theses parameters include d.c resistance, dielectric constant, and pyroelectric current. The variations of these parameters with temperature are studied explicitly during a set of heating and cooling runs starting from roomtemperature up to the melting point (~ 120{u00BA} C). The results obtained showed that there are two different states of different electric conductance. It was found that, very fast transformation takes place from one state to the other. In the first state, the sample possesses high resistance quickly reduced (during the elevation of temperature) due to the polarizability anomalies. Also, the pyroelectric current measurements showed that LiDPC samples are more pyroelectric than pure DPC samples

Issued also as CD

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