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Register a new userتصنیع خلائط حدید نیكل بطریقة تلبید المساحیق و دراسة خصائصها المغنطیسیة
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Publication date
2016
and research's language is
العربية
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یُمكن تفسیر نشؤ المغنطیسیة في المواد نتیجة حركة الشحنات داخل ذرات المادة و التي یُمكن تصنیفها في ثلاثة أنواع أولاً: دوران الإلكترونات حول نواة الذرة دوران الإلكترون حول محوره حركة بعض الشحنات داخل نواة الذرة
No English abstract
References used
Inc., Sons, & Wiley John .1 volume MATERIALS, MAGNETIC TO INTRODUCTION .1 .2009 Canada, in simultaneously Published reserved. rights All Jersey. New Hoboken,
John applications. and principles materials: magnetic Modern C.O'handley. Robert .2000 Canada, Sons, & Wiley
powder magnetic soft of characterizaton and sintering Microwave ERDEM. DERYA .2011 ,1 page UNIVERSITY, TECHNICAL EAST MIDDLE alloys. ni-fe metallurgical
rate research
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Powder metallurgy method was used during this study to manufactor magnetic
specimens of the two alloys: FeNi65% and FeNi78%. These specimens were treated by
heat with or without the presence of of magnetic field. The mangetic properties was
amusem
ent by using special measurement circle. Crystalline structures were studied
using XRD.
مسألة الفتوى من أهم وأدق ما يجب اهتمام المرجعية الدينية به ، لأنها تعد إخباراً عن الله سبحانه بالحكم الشرعي المتعلق بمختلف القضايا المطروحة على مستوى تصرف الفرد أو على مستوى العلاقات الاجتماعية و وجوه التعامل المختلفة.
Tow compounds have been synthesised: tetra butyl ammonium
alginate and dodecanoate sodium alginate ester.
The synthesis of compound (1) by transferring
sodium alginate to Alginic acid and then adjusted by tetra-butyl
ammonium hydroxide. The comp
ound (2) was synthesised from
tetra-butyl ammonium alginate according to Fisherest erification,
between tetra-butylammonium alginate and dodecanoic acid and
using (Amberlyst-15) as a hetrogeneous acid catalyst, and then the
product react with sodium carbonate.
In this research we have studied the absorbance of some zinc alloys. These alloys were
manufactured in the local market, and these alloys can be used as absorber plate in the
manufacture of solar collectors. We conducted this study in the laborator
y, first (using
tow light sources, 100W and 30 W), and Second in the external medium using direct solar
radiation. Our research provides important information that could be used in improving the
efficiency of solar collectors using absorbent surfaces that has a higher absorbency.
We have also studied the relationship between the absorbance and the atomic number of
the studied alloys. This study showed that the absorbed energy by these metals increase
with their atomic laboratory number Z.
In the present paper, we study the effect of both morphology and
compatibilization on the reaction to fire of blends of recycled
poly(ethylene terephthalate) (PET) with recycled polycarbonate (PC).
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