Effect of Diffused Metallic Atoms on the Electrical Conductivity of Gum Arabic
Hatim Mohamed Al-Khair Dirar, Osman Mohamed Alhag Mohamed Khair
كلية الدراسات العليا-جامعة النيلين · السودان
الموضوعات
علوم بحتة وطبيعية
الملخص
In this study Gum Arabic (GA) doped with Aluminum Oxide (A1103) had been prepared by solidstate chemical method. The samples were treated thermally at different temperatures andcharacterized by X-ray diffractometer and impedance spectroscopy. The results obtained showedamorphous structure and temperature dependent electrical conductivity. At 300 k the pure GAsample had acquired highest conductivity, which gradually decreases with increasingtemperature. The same features were observed after doping GA with different A1103concentrations. Such decrease can attribute to the expanded grain boundaries caused byliberation of Oxygen originated from high reactivity of Al with earboxyl group in GA.Calculated diffusivity of A1203 at different temperatures had indicated that, the GA substanceturned into semiconductor.
روابط وملفات
التعريف والنوع
- رقم الوثيقة
- 0cc8485f-0ac4-4e05-b0c4-a4fa51aaecc8
- رقم العقد
- 0
- نوع الوسائط
- Crawler
- نوع المحتوى
- الرسائل العلمية
- صيغة المصدر
- رسائل ماجيستير
- نوع الملف
- pdf text
- أسماء الملفات
- 63309_1.pdf
بيانات النشر
- ألقاب المؤلفين
- [{"name_ar":"Hatim Mohamed Al-Khair Dirar","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Osman Mohamed Alhag Mohamed Khair","title_ar":"اعداد","title_en":"Preparation"}]
- اللغة
- English
المصدر والدورية
- اسم المصدر
- Effect of Diffused Metallic Atoms on the Electrical Conductivity of Gum Arabic
المحتوى والصفحات
- عدد الصفحات
- 0
إشراف وإعداد
- الإشراف
- Hatim Mohamed Al-Khair Dirar
- الإعداد
- Osman Mohamed Alhag Mohamed Khair
الاقتباسات الببليوغرافية
APA
MLA