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رسائل ماجيستير الانجليزية 2017 0ab0e3ef-61cd-4ca7-ad8f-93be9ef8c259

Determination of the Optical Properties of Pure and Doped Polyvinyl Alcohol using Different Lasers

تحديد الخواص البصرية لبوليمر PVA النقي والمشوب بإستخدام أنواع مختلفة من الليزرات

Nafie Abd Al-Lattief, وفاء حسن عثمان

كلية الدراسات العليا-جامعة السودان للعلوم والتكنولوجيا · السودان

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

In this work, the optical properties of purepolyvinyl alcohol(PVA) and PVA doped with silver nitratewith different mass ratioswere studied using different types of monochromatic light sourcesin wavelength range (360-920) nm. All samples were prepared as disks by pressing the powder using compressor,the fabricated disks with different thicknesses (3.13, 4. 61 , 6. 24 , 7.73 , 9.10 ,10.97) mm for pure PVA, and a disk with a thickness (9.10mm) was chosen and prepared with different ratios of silver nitrate (10,20,30,40,50) % for doped PVA.The incident light intensities were measured in the absence of samples, which regarded as the reference (I_0), then the transmission intensities (I_T) for each sample were measured by placing the monochromatic light source, the detector, and the sample on the same line.The reflected intensities (I_R) also were measured by placing the monochromatic light source and the detector at angle of 450 with the samples. The absorption coefficient for all samplewere calculated using Beer-Lambert law. In addition, the refractive index also was calculated for each sample.The optical properties (absorption coefficient, transmission percentage, and refractive index) of fabricated disks with different thicknesses and different concentration of silver nitrate of pure and doped PVA were plotted as a function of wavelength.The obtained results showed the possibility ofusing pure PVA and doped PVAas an optical filter in certain wavelengths or as reflector for other wavelengths, and there is a changein the optical properties due todoping of PVA by silver nitrate.

التعريف والنوع

رقم الوثيقة
0ab0e3ef-61cd-4ca7-ad8f-93be9ef8c259
رقم العقد
0
نوع الوسائط
Crawler
نوع المحتوى
الرسائل العلمية
صيغة المصدر
رسائل ماجيستير
نوع الملف
pdf text
أسماء الملفات
19256_1.pdf, 19256_2.pdf, 19256_3.pdf, 19256_4.pdf

بيانات النشر

ترجمة العنوان
تحديد الخواص البصرية لبوليمر PVA النقي والمشوب بإستخدام أنواع مختلفة من الليزرات
ألقاب المؤلفين
[{"name_ar":"Nafie Abd Al-Lattief","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"وفاء حسن عثمان","title_ar":"اعداد","title_en":"Preparation"}]
اللغة
English

المصدر والدورية

اسم المصدر
Determination of the Optical Properties of Pure and Doped Polyvinyl Alcohol using Different Lasers

المحتوى والصفحات

عدد الصفحات
0

إشراف وإعداد

الإشراف
Nafie Abd Al-Lattief
الإعداد
وفاء حسن عثمان

الاقتباسات الببليوغرافية

APA

Nafie Abd Al-Lattief و وفاء حسن عثمان. (2017). Determination of the Optical Properties of Pure and Doped Polyvinyl Alcohol using Different Lasers. أطروحة(رسائل ماجيستير). كلية الدراسات العليا-جامعة السودان للعلوم والتكنولوجيا. السودان.

MLA

Nafie Abd Al-Lattief و وفاء حسن عثمان. Determination of the Optical Properties of Pure and Doped Polyvinyl Alcohol using Different Lasers. 2017. كلية الدراسات العليا-جامعة السودان للعلوم والتكنولوجيا، رسائل ماجيستير.