Preparation and study of the magnetic properties of doped with chromium barium ferrite

مقدم أطروحة جامعية

al-Sarhan, Muhanna Khalaf

مشرف أطروحة جامعية

Busul, Ibrahim

أعضاء اللجنة

Mahmud, Sami
al-Nasir, Husam
al-Jamal, Ahmad Fawwaz

الجامعة

جامعة آل البيت

الكلية

كلية العلوم

القسم الأكاديمي

قسم الفيزياء

دولة الجامعة

الأردن

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2008

الملخص الإنجليزي

In this work, ball milling method was used to prepare barium ferrite doped with Cr (BaFe11.3Cr 0.7O19) at different annealing temperatures.

The structure and the magnetic behavior of the prepared samples were investigated and compared with previously prepared pure barium ferrite samples (1912 Ba Fe O).

The XRD measurement show that intensive formation of BaFe12O19 starts at 800 o C for the pure samples.

While for doped samples an intermediate phase of BaFe2O4 was observed at 800 o C and the intensive formation of BaFe12O19 was at 1000o C.

For both a single phase of BaFe12O19 was found at 1200o C.

It was found that the doping of barium ferrite with Cr leads to increase in coercive field, anisotropy field and decrease in the process of cluster formation.

Also lead to decrease the saturation magnetization.

These results were taken from hysteresis loop, delta M, remnant curve and SEM.

التخصصات الرئيسية

الفيزياء

الموضوعات

• الخواص المغناطيسية

عدد الصفحات

64

قائمة المحتويات

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-302928