کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1464607 989666 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of β-SiAlON: A combined method using sol–gel and SHS processes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Synthesis of β-SiAlON: A combined method using sol–gel and SHS processes
چکیده انگلیسی

β-SiAlON has been prepared by a SHS reaction performed under high nitrogen pressure on a compacted mixture of silicon and mullite. In order to optimise this reaction, the solid mixture was prepared from a liquid solution in which the mullite (2SiO2-3Al2O3) was formed by a sol–gel process. The SHS samples were characterized by using Scanning Electron Microscopy (SEM) and X-ray diffraction. A Rietveld refinement performed on the recorded diffractograms revealed a very high formation rate of β-SiAlON (more than 80 wt%) when the reaction was carried out under low nitrogen pressure. From the whole of our results, a mechanism of β-SiAlON formation has been suggested.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 34, Issue 5, July 2008, Pages 1189–1194
نویسندگان
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