کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5440658 | 1398235 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Si additions on the Al2O3 grain refinement upon oxidation of Cr2AlC MAX phase
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
The effect of Si additions on the oxidation behavior of Cr2AlC based coatings is investigated. Oxidation experiment was performed at 1120 °C in air for 4 h for Cr2AlC and Cr2Al1âxSixC (0 < x â¤Â 0.06) coatings. The crystal structure, microstructure and chemical composition of the as-deposited as well as oxidized coatings have been investigated. Alloying Cr2AlC with up to 0.7 at.% Si causes an increase in Al2O3 scale thickness by up to 40 ± 17%. Electron microscopy and atom probe tomography data support the notion that the here reported Si concentration induced 40% increase in Al2O3 layer thickness (during oxidation at 1120 °C for 4 h) is enabled by the Si concentration induced, and hence concomitant, increase in nucleation density of Al2O3.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 37, Issue 4, April 2017, Pages 1339-1347
Journal: Journal of the European Ceramic Society - Volume 37, Issue 4, April 2017, Pages 1339-1347
نویسندگان
Lin Shang, Pradeep Konda Gokuldoss, Stefanie Sandlöbes, Moritz to Baben, Jochen M. Schneider,