کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5440266 | 1398226 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermophysical properties of carbon fiber reinforced multilayered (PyC-SiC)n matrix composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Three kinds of carbon fiber reinforced multilayered (PyC-SiC)n matrix (C/(PyC-SiC)n) composites (n = 1, 2 and 4) were prepared by means of layer-by-layer deposition of PyC and SiC via chemical vapor infiltration. Thermal expansion behaviors in the temperature range of 800-2500 °C and thermal conductivity from room temperature to 1900 °C of C/(PyC-SiC)n composites with various microstructures were investigated. The results show that with increasing PyC-SiC sequences number (n), the coefficients of thermal expansion of the composites decrease due to the increase of interfacial delamination, providing room for thermal expansion. The thermal diffusivity and thermal conductivity also decrease with the increase of sequences number, which are attributed to the enhancement of phonon-interface scattering resulted from the increasing number of interfaces. Modified parallel and series models considering the interfacial thermal resistance are proposed to elaborate thermal conductivity of the composites, which is in accordance with the experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 37, Issue 10, August 2017, Pages 3255-3261
Journal: Journal of the European Ceramic Society - Volume 37, Issue 10, August 2017, Pages 3255-3261
نویسندگان
Yan Jia, Kezhi Li, Lizhen Xue, Liye Huang, Junjie Ren, Shouyang Zhang,