کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7887046 1509788 2018 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Densification improvement of spark plasma sintered TiB2-based composites with micron-, submicron- and nano-sized SiC particulates
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Densification improvement of spark plasma sintered TiB2-based composites with micron-, submicron- and nano-sized SiC particulates
چکیده انگلیسی
Taguchi design of experiments methodology was used to determine the most influential spark plasma sintering (SPS) parameters on densification of TiB2-SiC ceramic composites. In this case, four processing factors (SPS temperature, soaking time, applied external pressure and SiC particle size) at three levels were examined in order to acquire the optimum conditions. The statistical analysis identified the sintering temperature as the most effective factor influencing the relative density of TiB2-SiC ceramics. A relative density of 99.5% was achieved at the optimal SPS conditions; i.e. temperature of 1800 °C, soaking time of 15 min and pressure of 30 MPa by adding 200-nm SiC particulates to the TiB2 matrix. The experimental measurements and predicted values for the relative density of composite fabricated at the optimum SPS conditions and reinforced with the proper SiC particle size were almost similar. The mechanisms of sintering and densification of spark plasma sintered TiB2-SiC composites were discussed in details.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 10, July 2018, Pages 11431-11437
نویسندگان
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