کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7215981 | 1469545 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanical, thermal and ablative properties of zirconia, CNT modified carbon/phenolic composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Zirconium oxide (Zirconia) coating on carbon fabric (C-fabric) was developed by using zirconia sol. C-fabrics having different weight percentages (wt%) of zirconia namely 0Â wt% (Blank), 3.5Â wt%, 6.5Â wt% and 9.5Â wt% were used to make Zirconia-Carbon-Phenolic (Zr-C-Ph) composites. Similarly, 0.5Â wt% multiwalled carbon nanotube (CNT) dispersed phenolic resin was used to make CNT-C-Ph composite. Thermal conductivity, ILSS and flexural strength were measured for the prepared composites. Based on the initial results, subsequently a functionally graded carbon-phenolic composite (FG-C-Ph) having CNT-C-Ph composition up to certain thickness followed by Zr-C-Ph composition for the remaining thickness was made. Thermal insulation and ablative properties for blank C-Ph, Zr-C-Ph, FG-C-Ph were studied using plasma arc jet test which was carried out at a heat flux of 4.0Â MW/m2 for 30Â s. Results from the plasma arc jet test show that, the temperature drop across the Zr-C-Ph composite was found to be highest while it was least for the blank. However the ablation rate was found to be highest for the FG-C-Ph while it was least for the blank. Ablation mechanisms for all the tested composites are proposed based on the SEM and XRD studies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 80, 17 May 2013, Pages 1-7
Journal: Composites Science and Technology - Volume 80, 17 May 2013, Pages 1-7
نویسندگان
I. Srikanth, N. Padmavathi, Suresh Kumar, P. Ghosal, Anil Kumar, Ch. Subrahmanyam,