کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7898881 | 1510141 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of dense SiHf(B)CN-based ceramic nanocomposites via rapid spark plasma sintering
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The hardness and the elastic modulus of dense SiHfCN were found to be 26.8 and 367Â GPa, respectively. Whereas the SiHfBCN samples exhibited a hardness of 24.6Â GPa and an elastic modulus of 284Â GPa. The investigation of the oxidation of the prepared dense ceramic nanocomposites at high temperature revealed that the parabolic oxidation rates of SiHfCN were comparable to those of ultra-high temperature ceramics (UHTCs, e.g. HfC-20 vol% SiC); whereas the parabolic oxidation rates of SiHfBCN were several orders of magnitude lower than those. The results obtained within this study indicate the feasibility of SPS for rapid preparation of dense though nano-scaled Hf-containing ceramic nanocomposites that are promising candidates for high-temperature applications in harsh environments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 37, Issue 16, December 2017, Pages 5157-5165
Journal: Journal of the European Ceramic Society - Volume 37, Issue 16, December 2017, Pages 5157-5165
نویسندگان
Jia Yuan, Duan Li, Kurt E. Johanns, Claudia Fasel, Karsten Durst, Hans-Joachim Kleebe, Zhijian Shen, Ralf Riedel, Emanuel Ionescu,