کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1465167 | 989682 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase transformation in cordierite gel synthesized by non-hydrolytic sol–gel route
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Phase transformation in cordierite gel synthesized by non-hydrolytic sol–gel route Phase transformation in cordierite gel synthesized by non-hydrolytic sol–gel route](/preview/png/1465167.png)
چکیده انگلیسی
Cordierite gel was synthesized by non-hydrolytic sol–gel route, starting from aluminum chloride, TEOS and magnesium chloride dissolved in absolute ethanol. Crystallization of μ-cordierite from gel at temperatures between 900 and 1000 °C was confirmed by differential thermal analyses, X-ray and FTIR spectroscopy. Higher calcination temperature resulted in the transformation of μ- to α-cordierite. The value of Avrami parameter n = 2.23 for the μ-cordierite crystallization indicates contribution of different simultaneous mechanisms: homogeneous nucleation and three-dimensional crystallite growth due to homogeneity of gel and surface crystallization due to submicron particles of the gel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 33, Issue 7, September 2007, Pages 1263–1268
Journal: Ceramics International - Volume 33, Issue 7, September 2007, Pages 1263–1268
نویسندگان
I. Janković-Častvan, S. Lazarević, D. Tanasković, A. Orlović, R. Petrović, Dj. Janaćković,