کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9804181 | 1516479 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of La, Ce, Y and B addition on thermal stability of unsupported alumina membranes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of La, Ce, Y and B addition on thermal stability of unsupported alumina membranes Effect of La, Ce, Y and B addition on thermal stability of unsupported alumina membranes](/preview/png/9804181.png)
چکیده انگلیسی
Phase composition and pore structure of La, Ce, Y and B doped unsupported alumina membranes were investigated by means of X-ray diffraction and N2 adsorption. The role of La, Ce, Y and B addition in enhancing the thermal stability of alumina membranes is discussed. At temperatures ranging from 800 to 1000 °C, La and Y impregnation are more efficient than that of B and Ce to preserve the BET surface area and pore volume. The addition of La can partially stabilize the alumina up membranes to 1200 °C by the delay of phase transformation from γ- to α-Al2O3.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 387, Issues 1â2, 25 January 2005, Pages 292-296
Journal: Journal of Alloys and Compounds - Volume 387, Issues 1â2, 25 January 2005, Pages 292-296
نویسندگان
Qi Wei, Zeng-Xiang Chen, Zhi-Hong Wang, Ya-Li Hao, Jing-Xia Zou, Zuo-Ren Nie,