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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Preparation of dense SiHf(B)CN-based ceramic nanocomposites via rapid spark plasma sintering
چکیده انگلیسی
The hardness and the elastic modulus of dense SiHfCN were found to be 26.8 and 367 GPa, respectively. Whereas the SiHfBCN samples exhibited a hardness of 24.6 GPa and an elastic modulus of 284 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
نویسندگان
, , , , , , , , ,