پديد آورنده :
كاويان، رضا
عنوان :
ساخت تيتانات باريم به روش سل _ ژل
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
استخراج فلزات
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مواد
صفحه شمار :
[نه]، 92، [I] ص.: مصور، شكل، جدول، نمودار
استاد راهنما :
علي سعيدي، محمد حسن عباسي
توصيفگر ها :
كلوئيدها , الككسيدها , ژل سيليكا , فرو الكتريك , پيزوالكتريسيته , حلقه هيستريزيس , كاتاليزور بازي
استاد داور :
جمشيد عميقيان، حسين ادريس
تاريخ ورود اطلاعات :
1395/12/16
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
AbstractThe aim of this investigation was to study the production of barium titanate using sol gelmethod Alkoxide titanium as the source of titanium ions and BaCO3 was used as asource of barium ions Choleric acid and nitric acid were used as the acidic catalysts andammonia as the basic catalyst The effect of sintering temperature on the composition offinal product was evaluated With using x ray diffraction it was found that phases werecharacterized When acidic catalysts are used the rate of reaction increasesand at ambienttemperature barium titanate is achieved with hexagonal structures At sinteringtemperature above 600 C tetragonal structure is achieved When a basic catalyst is usedthe final product had a better uniform structure However at 1000 C pure barium titanate with a tetragonal structure was obtained Compared with the traditional method synthesis of barium titanate with tetragonal structure by the sol gel method can be carried out at low temperature Furthermore the products of sol gel technique have a higher purity a f I A i Q IVJ Lr JI
استاد راهنما :
علي سعيدي، محمد حسن عباسي
استاد داور :
جمشيد عميقيان، حسين ادريس
