Sunshield Membrane Coatings - NASA Science
2024年8月12日 · Webb deployed a tennis-court sized Sunshield made of five thin layers of Kapton E with aluminum and doped-silicon coatings to reflect the sun's heat back into space.
The Complex Material Engineering of NASA’s Webb Telescope …
2016年6月23日 · The sunshield consists of five layers of a material called Kapton. Each layer is coated with aluminum, while sun-facing side of the two hottest layers (designated Layer 1 and Layer 2) also have a “doped-silicon” (or treated silicon) coating to …
About Webb's Sunshield - Science@NASA
2024年8月22日 · The sunshield's 5 membrane layers, each thinner than a human hair, are made of Kapton, a tough, high-performance plastic coated with a reflective metal. Each successive layer is cooler than the one below.
NASA’s Webb Telescope Keeping Cool with Ultra-thin DuPont
2022年1月3日 · JWST’s sunshield was designed to be folded origami-style, twelve times in order to fit inside the Ariane 5 rocket, so the Kapton ® polyimide film layers needed to be ultra-thin. The Kapton ® -enabled sunshield is a critical part of the Webb telescope design because the infrared cameras and instruments aboard must be kept very cold, under ...
James Webb Space Telescope sunshield - Wikipedia
The James Webb Space Telescope (JWST) sunshield is a passive thermal control system deployed post-launch to shield the telescope and instrumentation from the light and heat of the Sun, Earth, and Moon. By keeping the telescope and instruments in permanent shadow, it allows them to cool to their design temperature of 40 kelvins (−233 °C; −388 °F).
A Mechanical Harmony to NASA’s Webb Telescope Sunshield
2016年9月23日 · A carefully designed set of 5 coated layers of a special material called Kapton work together to enable the heat to be deflected from the telescope. This episode of “Behind the Webb” shows what the deployment of the sunshield and its layers looks like from the ground.
一文详细揭秘最复杂太空望远镜中复合材料 - 知乎
2023年9月25日 · 詹姆斯·韦伯太空望远镜（James Webb Space Telescope，JWST）是设计最复杂、功能最强大，也是人类有史以来最大的太空望远镜，它极大地扩展了人类在恒星间的视野。
NASA成功测试詹姆斯·韦伯太空望远镜的遮阳装置 - 搜狐
2019年10月23日 · 美国宇航局（nasa）已经完成了对詹姆斯·韦伯太空望远镜（jwst）遮阳装置的里程碑测试，该遮阳装置将保护旗舰望远镜免受太阳辐射，从而揭开宇宙的秘密，该望远镜因一系列延误和预算超支而受到打击，目前预计将在20…
ESA Science & Technology - Detail of Webb sunshield
2019年10月23日 · Close-up view of the sunshield of the NASA/ESA/CSA James Webb Space Telescope (JWST). Each layer of the Kapton sunshield is uniquely sized, shaped, and has special rip-stop patterning to add durability to the membranes that are as thin as a human hair.
DuPont’s Polyimide Films Protect NASA’s JWST from Sun’s
2022年1月14日 · DuPont has announced that its technology, in the form of ultra-thin Kapton® polyimide films, is the crucial material protecting the James Webb Space Telescope (JWST) from the light and the heat of the sun, enabling it to function properly in space. After 30 years in development, the NASA’s JWST was launched on December 25, 2021, from the ...