A Φ 3.5m diameter Sic telescope for Herschel mission

@inproceedings{Sein2003A3,
  title={A $\Phi$ 3.5m diameter Sic telescope for Herschel mission},
  author={Emmanuel Sein and Yves Toulemont and Fr{\'e}d{\'e}ric Safa and Michel Duran and Pierre Deny and Daniel de Chambure and Thomas Passvogel and Goeran L. Pilbratt},
  booktitle={SPIE Astronomical Telescopes + Instrumentation},
  year={2003}
}
Since ten years ASTRIUM has developed sintered Silicon Carbide (SiC) technology for space applications. Its unique thermo-mechanical properties, associated with its polishing capability, make SiC an ideal material for building ultra-stable lightweight space based telescopes or mirrors. SiC is a cost effective alternative to Beryllium and the ultra-lighweighted ULE. In Complememt to the material manufacturing process, ASTRIUM has developed several assembly techniques (bolting, brazing, bonding… 

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