کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1330069 1500119 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Growth process of Cu2Al6B4O17 whiskers
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Growth process of Cu2Al6B4O17 whiskers
چکیده انگلیسی

The reactions occurred and growth process in the preparation of copper aluminum borate (Cu2Al6B4O17) whiskers based on flux method (Al2(SO4)3/CuSO4/H3BO3 as raw materials, K2SO4 as flux) were investigated. The thermogravimetric and differential scanning calorimetry analysis (TG-DSC), inductively coupled plasma atomic emission spectrum analysis (ICP-AES) and X-ray diffraction analysis (XRD) results of reactants mixture quenched at various temperatures and phase diagrams of K2SO4–Al2(SO4)3 system and B2O3–Al2O3 system showed that the reaction process proceeds through three steps: the formation and decomposition of two different kinds of potassium aluminum sulfate (K3Al(SO4)3 and KAl(SO4)2); the formation of aluminum borate (Al4B2O9) and decomposition of copper sulfate (CuSO4) and boric acid (H3BO3); growth and formation of copper aluminum borate (Cu2Al6B4O17) whiskers. The scanning electron microscopy (SEM) analysis results indicated that morphology in growth of Cu2Al6B4O17 whiskers develops through three stages: nanoparticles, fan-shaped whiskers and agminate-needlelike whiskers.

The morphology in growth of Cu2Al6B4O17 whiskers develops through three stages: nanoparticles, fan-shaped whiskers and agminate-needlelike whiskers.Figure optionsDownload as PowerPoint slideHighlights
► Reaction process in the preparation of Cu2Al6B4O17 whiskers was researched systematically.
► Crystal growth mechanism of Cu2Al6B4O17 whiskers was proposed by theory and experiments.
► Properties of Cu2Al6B4O17 were analyzed by instruments, such as TG-DSC, ICP-AES, XRD and SEM.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Solid State Chemistry - Volume 197, January 2013, Pages 1–6
نویسندگان
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