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Lightweight composite mirrors for telescopes

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2012 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Materials Modification Inc
2809-K Merrilee Drive Fairfax, VA 22031-
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Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
Phase 1
Fiscal Year: 2012
Title: Lightweight composite mirrors for telescopes
Agency: NASA
Contract: NNX12CF46P
Award Amount: $125,000.00


Lightweight, steady and stiff mirrors are necessary to decrease cost of telescopes such as IXO and GenX used in special NASA missions. Low-density materials are ideal for use as mirrors in such applications. Beryllium has been traditionally considered ideal for lightweight mirrors requiring high rigidity. The toxicity of beryllium poses a major problem. Polished Silicon Carbide (SiC), prepared by Chemical Vapor Deposition (CVD), is the current material of choice for fabrication of mirrors in lightweight telescopes. However, CVD is a complex and expensive technique and the quality of SiC produced is very sensitive to the processing conditions. MMI proposes to utilize a novel displacement reaction to obtain fully dense B4C based composite mirrors with unique microstructural features. Phase I will involve preparing the lightweight optical mirror material and evaluating their mechanical, thermal and optical properties. Phase II will involve optimization of the processing, consolidation and polishing procedures for the composite. In collaboration with industrial partners, who manufacture special purpose optics, mirrors will be fabricated and tested in Phase II for use in various applications.

Principal Investigator:

Tirumalai Sudarshan
Principal Investigator

Business Contact:

Tirumalai Sudarshan
Business Official
Small Business Information at Submission:

Materials Modification, Inc.
2809-K Merrilee Drive Fairfax, VA 22031-4409

EIN/Tax ID: 541368539
Number of Employees:
Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No