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Register a new userStudy the electrical properties of tin-doped barium titanate ceramics
دراسة الخصائص الكهربائية لتيتانات الباريوم المشوبة بالقصدير
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حضرت عينات سيراميكية من مادة تيتانات الباريوم النقية المشوبة بالقصدير بطريقة تفاعل الحالة الصلبة عند درجة حرارة تلبيد ˚C1350 لمدة3.5 h . درست الخصائص الكهربائية للسيراميك BaTi1-xSnxO3 من أجل النسب (x=0, 0.05, 0.07, 0.1, 0.12, 0.15 ,0.17)، كتابع لدرجة الحرارة من 0˚C إلى ˚C170 عند التردد 1kHz. أظهرت النتائج التجريبية انتقال درجة حرارة كوري إلى درجات حرارة منخفضة بزيادة نسب القصدير المضافة. بلغت أعلى قيمة لثابت العزل الكهربائي έ=6568 من أجل النسبة x=0.1، و درجة الحرارة Tc=50˚C. وجد أن الانتقال الطوري لمادة تيتانات الباريوم يخضع للنوع الأول المتميز بـِ γ=1.07، و تتغير درجة الانتقال بزيادة نسب القصدير المضاف، و كانت أعلى قيمة لدرجة الانتقال =1.46 γ عند النسبة x=0.15. يتناقص ثابت كوري بزيادة نسب القصدير المضافة للعينات السيراميكية.
Ceramic Sample of tin doped pure barium titanate prepared by solid-state reaction at a sintering temperature of 1350˚C for 3.5h. The electrical properties of ceramic BaTi1- xSnxO3 studied for the ratios (x= 0, 0.05, 0.07, 0.1, 0.12, 0.15, 0.17), as a function of temperature from 0˚C to 170˚C at 1kHz. The maximum value of the dielectric constant reached to έ=6568 for the content x=0.1 at the temperature Tc=50˚C. The phase transition for barium titanate was of the first type with γ=1.07. The degree of the transition changed by increase the ratio of added tin. Where the maximum value of transition degree γ=1.46 at the ratio x=0.15. Curie constant decreases with increasing ratios of tin added to the ceramic samples.
References used
LIJUAN1, Z. LIHAI, W. JIANDANG, L. BIN, C. MINGLEI, Z. BANGJIAO, Y., Dielectric properties and structural defects in BaTi1−xSnxO3 ceramics. International Conference on Positron Annihilation (ICPA), China. Conference Series 443, 2013, doi:10.1088/1742-6596/443/1/012014
SETTER, N ; COLLA, E. L., Ferroelectric Ceramics_ Tutorial reviews, theory, processing, and applications. Birkhauser Verlag, Berlin, 1993, 381
XU. Y., Ferroelectric Materials and their Applications. North Holland, Amsterdam, London, New York, & Tokyo, 1991, 395
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