کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10226604 1701282 2019 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultra-thin carbon fiber mirrors: nickel plated, optical fabrication and thermal deformation test
ترجمه فارسی عنوان
آینه های نازک کربن فوق العاده: نیکل، تولید نوری و تست تغییر شکل حرارتی
کلمات کلیدی
کامپوزیت فیبر کربن، آینه یونایتد، اصلاح سطح، نیکل آبکاری، ساخت نوری، تغییر شکل حرارتی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
The aperture of space remote sensing camera is increasing, and the demand for lighter weight is getting higher and higher. With the advancement of active optics, the thickness of optical components has gradually grown to light and thin. It is extremely difficult to develop ultrathin mirrors using brittle materials such as traditional optical glass and silicon carbide. Due to advantages such as low density, high specific stiffness, low thermal expansion coefficient, toughness, and additive rapid manufacturing properties, carbon fiber reinforced plastic (CFRP) is one of potential applications for large-diameter ultra-thin mirrors. However, the carbon fiber composite material is a two-phase material that cannot be used as optical surface and must be surface-modified. In this paper, the surface modification of CFRP substrate was carried out by chemical nickel plating and nickel electroplating. The modified nickel layer covers all surfaces of CFRP substrate, and nickel layers satisfying the thickness, bonding force, and internal stress requirements. A Φ100 mm aperture ultra-thin carbon fiber mirror developed, after optical fabricating, its surface accuracy RMS is better than λ/15. Thermal deformation analysis and test show that the thermal deformation of ultra-thin carbon fiber mirrors is mainly manifested by the change of radius of curvature, which is caused by the thickness error of the nickel layer on the front and rear faces. In addition, although thermal deformation caused by the lamination angle error of CFRP substrate is relatively small in value, it should still be given enough attention, because the astigmatic error produced is hard to eliminate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 176, January 2019, Pages 85-92
نویسندگان
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