In this research, several samples of silicon oxide were prepared in the form of aerogel and xerogel, starting from different raw materials and using different drying methods. Where a part of the samples was prepared using aqueous sodium silicate (gla
ss water) (Na2SiO3) as a raw material, which is an economical and cheap material, while the rest of the samples were prepared using tetraethoxysilane (TEOS). Some of these samples were surface modified before drying using Trimethylchlorosilane, which is high Price (TMCS) by replacing the surface silanol groups (Si-OH) with alkyl. As for the remaining samples, which were prepared without surface modification, we succeeded in obtaining aerogel with a lower preparation cost and very close characteristics to the samples prepared by surface modification.
يتناول البحث عملية ترسيب السيليسيوم من أوكسيد السيليسيوم على الفولاذ و ذلك بالطريقة
الساكنة لتحسين خواصه بحيث يصبح أكثر مقاومة للحرارة و الأكسدة و التأكل و غيرها، و السلكنة
هي اشباع السطح الفولاذي بالسيلكون، و انتاج طبقة سطحية منتظمة و متماسكة.
لق
د تمت كتابة معادلات التفاعلات الممكنة و حساب الشروط الترموديناميكية المثلى نظرياً،
و التي ستمكن من اجراء التجارب لاحقاً، و تصنيع الجهاز المطلوب.
During this study, various types of silicon oxide were prepared
as aerogel and xerogel using multiple precursors and different
drying technics. Some of these samples were prepared from
Sodium silicate (waterglass) Na2SiO3 as a precursor which is a
cheap material, while others were prepared using tetraethoxysilane
(TEOS).
