SiC Aspheric Mirror

SPECIFICATIONS

We can provide customized service according to specific customer requirements.

SiC

Compared with ULE and other metal materials, silicon carbide (SiC) has outstanding advantages in specific stiffness, and is easy to achieve the light weight of the mirrors. The mirror blank made of silicon carbide is about 2 times lighter than ULE material.

SiC material has high thermal stability, resistance to thermal deformation is very strong, can maintain the surface shape of the mirror.

SiC material has become a new strategy for large mirror fabrication and has been widely used in large aperture space telescope systems.

SiC mirrors are usually grinded and prepolished by CCOS, then fine-polished by MRF or IBF.

TECHNOLOGY STRENGTH

Advanced gel injection molding technology

Formula of high-solid phase low-viscosity gel injection molding slurry

solid content of silicon carbide slurry > 69.5%

Viscosity< 1.5Pa.s which meets the requirements of 2mm channel casting.

Curing time in 1 hour Dry strength >26MPa.

Mature stamping and casting forming technology.

Lost Foam casting technology

Low-stress crackless drying process of RB-SiC

Smooth drying process by stages with flawless surface

Cost-effective with high performance, deformation<1%

Large dimension forming blank

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