کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1651982 1007634 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Combination of SHS and SPS Techniques for fabrication of fully dense ZrB2-ZrC-SiC composites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Combination of SHS and SPS Techniques for fabrication of fully dense ZrB2-ZrC-SiC composites
چکیده انگلیسی

A novel method for the fabrication of fully dense ZrB2-ZrC-SiC Ultra High Temperature Ceramic (UHTC) materials is proposed. It consists of first synthesizing ZrB2-40 vol.% ZrC-12 vol.% SiC powders by Self-propagating High-temperature Synthesis (SHS) and subsequently consolidating them by Spark Plasma Sintering (SPS). Specifically, when starting from Zr, B4C, Si, and graphite, the SHS technique leads to the complete conversion of reactants to the desired product. In addition, the use of the SPS apparatus allows for the full consolidation of the SHS powders. This result is achieved under the optimal conditions of 10 min total time and with a maximum temperature of 1800 °C. The proposed method is particularly rapid and convenient as compared to other techniques available for the preparation of analogous materials and for the consolidation of commercial ZrB2, ZrC, and SiC, using the same SPS conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 62, Issue 3, 15 February 2008, Pages 432–435
نویسندگان
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