کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1601046 | 1005183 | 2010 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Oxidation behavior at 300–1000 °C of a (Mo,W)Si2-based composite containing boride
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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: Oxidation behavior at 300–1000 °C of a (Mo,W)Si2-based composite containing boride Oxidation behavior at 300–1000 °C of a (Mo,W)Si2-based composite containing boride](/preview/png/1601046.png)
چکیده انگلیسی
The oxidation behavior of a (Mo,W)Si2 composite with boride addition was examined at 300–1000 °C for 24 h in dry O2. The oxidation kinetics was studied using a thermobalance, and the oxide scales were analyzed using a combination of electron microscopy (SEM/EDX, FIB, BIB) and XRD. Accelerated oxidation was found to occur between 500 °C and 675 °C, with a peak mass gain at 625 °C. The rapid oxidation is attributed to the vaporization of molybdenum oxide that leaves a porous and poorly protective silica layer behind. At higher temperature (700–1000 °C) a protective scale forms, consisting of a dense SiO2/B2O3 glass.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 18, Issue 1, January 2010, Pages 77–86
Journal: Intermetallics - Volume 18, Issue 1, January 2010, Pages 77–86
نویسندگان
L. Ingemarsson, M. Halvarsson, K. Hellström, T. Jonsson, M. Sundberg, L.-G. Johansson, J.-E. Svensson,