کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7215856 | 1469535 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A high-temperature radar absorbing structure: Design, fabrication, and characterization
ترجمه فارسی عنوان
ساختار جذب رادار با درجه حرارت بالا: طراحی، ساخت و مشخصه
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
چکیده انگلیسی
In this investigation, a new sandwich structure called the SiCf/SiC sandwich radar absorbing structure (SRAS) for high-temperature radar absorption was designed using SiCf/SiC composites. Samples with the base design and optimized design were then fabricated through the PIP process, and the free space reflectivity was measured. The experimental result agrees with the calculated result, exhibiting excellent absorbing properties. The high-temperature reflectivity of the SiCf/SiC SRAS was also measured and the variation with temperature is found to be in a small range, indicating excellent absorbing properties at elevated temperatures. The factors determining the variation of reflectivity with temperature were also investigated, and the sheet resistance of the SiC fiber fabrics (particularly, the resistance characteristics of the pyrocarbon layer of the SiC fiber has a negative temperature coefficient) used as the lossy layer in the SRAS is found to be primarily responsible for the thermal variation of reflectivity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 90, 10 January 2014, Pages 202-208
Journal: Composites Science and Technology - Volume 90, 10 January 2014, Pages 202-208
نویسندگان
Hao Tian, Hai-Tao Liu, Hai-Feng Cheng,