کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7898993 | 1510142 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Flexural creep of zirconium diboride-silicon carbide up to 2200 °C in minutes with non-contact electromagnetic testing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Flexural creep of ZrB2-30 vol% SiC ultra high temperature ceramic composite was studied at 1700-2200 °C and 20-50 MPa using the novel method of electromagnetic Lorentz force loading of electrically heated specimens. Experiments were conducted in air and in non-oxidizing atmospheres. The apparent activation energy for creep was 344 ± 35 kJ/mol for non-oxidizing conditions. The stress exponent was 1.4 ± 0.4. The creep rate was slightly higher in air due to a decrease in the size of the load bearing substrate because of oxidation. There was no evidence of electric field effects. Creep experiments could be performed up to 2200 °C very quickly, with experiments conducted in a few minutes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 33, Issues 15â16, December 2013, Pages 2901-2908
Journal: Journal of the European Ceramic Society - Volume 33, Issues 15â16, December 2013, Pages 2901-2908
نویسندگان
Sindhura Gangireddy, John W. Halloran, Zachary N. Wing,