کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1470824 990335 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Oxidation of zirconium diboride–silicon carbide ceramics under an oxygen partial pressure of 200 Pa: Formation of zircon
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Oxidation of zirconium diboride–silicon carbide ceramics under an oxygen partial pressure of 200 Pa: Formation of zircon
چکیده انگلیسی

The formation and evolution of zircon during oxidation of ZrB2–20 vol.% SiC ceramics under a low oxygen partial pressure of 200 Pa is studied. The formation mechanism of zircon is proposed according to experimental results and thermodynamic consideration. And the main reason to the formation of zircon can be attributed to the active oxidation of SiC. Two steps can be divided for the formation and evolution of zircon: (1) nucleation from silica glass; and (2) crystal growth into prism like particles. Furthermore, the emergence of zircon significantly improves the oxidation resistance performance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 52, Issue 10, October 2010, Pages 3297–3303
نویسندگان
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