کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1500580 993352 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of alumina on the passive oxidation at low oxygen pressure of hot-pressed α-SiC
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Influence of alumina on the passive oxidation at low oxygen pressure of hot-pressed α-SiC
چکیده انگلیسی

The influence of an alumina content (2 wt.%) on the oxidation behavior of hot-pressed α-SiC is studied. Sintering of α-SiC powder with alumina rests on the formation of a liquid phase corresponding to the eutectic composition in the SiO2–Al2O3 system. The oxidation kinetics of pure α-SiC at 1470 K under helium with an oxygen partial pressure of 0.1 Pa is linear, although silica is produced. The formation of Al-rich crystallized phase could be responsible for the slower oxidation kinetics of alumina-doped SiC.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 60, Issue 7, April 2009, Pages 481–484
نویسندگان
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