NASA SBIR 2004 Solicitation

FORM B - PROPOSAL SUMMARY


PROPOSAL NUMBER: 04 S2.04-9431
SUBTOPIC TITLE: Optical Technologies
PROPOSAL TITLE: Ultra-Lightweight Hybrid Structured Mirror

SMALL BUSINESS CONCERN (Name, E-mail, Mail Address, City/State/Zip, Phone)
Metal Matrix Cast Composites, LLC
101 Clematis Ave., Unit #1
Waltham, MA 02453-7012
(781)893-4449

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Yuejian Chen
echen@mmccinc.com
101 Clematis Ave., Unit #1
Waltham, MA 02453-7012
(781)893-4449

TECHNICAL ABSTRACT (LIMIT 200 WORDS)
MMCC is proposing herewith a hybrid structured mirror that combines the advantages of SiC membrane and magnesium graphite composite. The significance of magnesium graphite composite is that it can be produced with quasi-isotropic properties and closely matched CTE down to cryogenic temperatures. In the proposed hybrid mirror, SiC membranes are used as the front and back faces of the mirror and an egg crate structure made of magnesium graphite composite is sandwiched between the SiC membranes. The proposed hybrid mirror structure is expected to have high specific stiffness, good thermal stability, be light weight, and producable at moderate cost.

POTENTIAL NASA COMMERCIAL APPLICATIONS (LIMIT 100 WORDS)
Optical mirrors and other optical instruments operating at cryogenic temperatures for satellites, space vehicles, and space stations beyond geosynchronous orbits and deep space flight.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (LIMIT 100 WORDS)
Optical apparatus such as optical benches, high speed scanning applications, and metering devices. Beryllium replacement materials for cost reduction, performance and non toxicity.