SiC Technology for Space Telescope. How to Make the Impossible
Abstract
Over the past twenty years Airbus Defence & Space has developed the Sintered Silicon Carbide (S-SiC) technology for Space Applications. Its unique thermo- mechanical properties, associated with its polishing capability, make S-SiC an ideal and cost effective material for building ultra-stable lightweight space telescopes and mirrors. In addition to the material manufacturing process, Airbus Defence & Space has developed several assembly techniques (bolting, brazing, bonding, ...) to manufacture large and complex SiC assemblies [2].Recent Airbus Defence & Space developments have shown the growth potential in size and performances of the S-SiC technology with the latest payload developments. They are currently able to produce mirrors and ultra-stable structures up to 3.8 meters diameter, i.e. close to the limitation provided by the largest launcher fairings.S-SiC has become a new generation space material. This paper provides an overview of the S-SiC properties, its manufacturing processes for mirrors and structures, and its application on space optical payloads.
- Publication:
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13th European Conference on Spacecraft Structures, Materials & Environmental Testing
- Pub Date:
- June 2014
- Bibcode:
- 2014ESASP.727E..32C