Author: HAMADA,ENSHERAH MOHAMED SAAD EL DIN/ Title: DIELECTRIC MEASUREMENTS AND IR-SPECTROSCOPY OF[(Pb1-1.5xLax)(Ti1-y Mny)O3] FERROELECTRIC CERAMICS /

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العنوان

DIELECTRIC MEASUREMENTS AND IR-SPECTROSCOPY OF[(Pb1-1.5xLax)(Ti1-y Mny)O3] FERROELECTRIC CERAMICS /

الناشر

ENSHERAH MOHAMED SAAD EL DIN HAMADA ,

المؤلف

HAMADA,ENSHERAH MOHAMED SAAD EL DIN

الموضوع

DIELECTRIC MEASUREMENTS IR-SPECTROSCOPY

تاريخ النشر

1995 .

عدد الصفحات

88p :

اللغة

الإنجليزية

الدرجة

الدكتوراه

التخصص

الفيزياء والفلك (المتنوعة)

تاريخ الإجازة

1/1/1995

مكان الإجازة

جامعه جنوب الوادى - كليه العلوم بقنا - الطبيعة

الفهرس

Only 14 pages are availabe for public view

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186

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186

Abstract

In the present work the specimens were of the general formula(pb1-1.5xLax)Ti1-yMny)O3.THIS FORMULA WAS BASED ON THE ASSUMPTION THAT LANTHANUM SUBSTITUTIONS FOR Pb2+,and Mn4+ substitutes as a tetravalention for Ti4+.These substitutions were also assumed to create vacancies in the Pb positions,so that the structure would be electrically netrual.