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العنوان
The Physical Properties Of Metallic Glasses =
المؤلف
Abaza, Sana Farouk.
هيئة الاعداد
مشرف / احمد ابوعلى
مشرف / عماد الوهيدى
مشرف / ناجى جمعه
باحث / سناء فاروق اباظه
الموضوع
physical. Metallic. Glasses.
تاريخ النشر
1997.
عدد الصفحات
152 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
علوم البيئة
تاريخ الإجازة
1/1/1997
مكان الإجازة
جامعة الاسكندريه - كلية العلوم - Physics
الفهرس
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Abstract

In this work an attempt to prepare the Ni-Fe metallic glasses by the
ectrodeposition technique has been made. Five samples of NilOo-xFex
etallicglasses with [x=8. 5, 18.5, 25.5, 45 and 51] were prepared by the
ectrodepositiontechnique. All samples were annealed for three hours at
fferent temperatures Tan=500oC, 700°C and 900°C. X-ray diffraction-,
lectrical-, electrochemical-, and magnetic- measurements were used to
entifyand characterize the samples.
X-ray scans were made for the five samples before and after
ealing. The x-ray diffractograms showed that, the addition of iron causes
broadening of the diffraction pattern, which increases with increasing the
’On concentration. This indicates that the amorphousity of the glasses is
onglydependent on its composition.
The effect of annealing showed that a multi stage crystallization
echanism of the NilOo-xFex system was reported as the annealing
emperaturewas increased. In the first stage, the system exhibited a yNhFe
hase where y is the face center cubic structure . In the intermediate stage,
e system exhibited mixed yNhFe and yNiFe phases. Whereas in the final
tage, the system exhibited a yNiFe In addition, the stabilization of phase.