High Strength, Transparent Alumina IR Windows with Nano-scale (< 100 nm) Sintered Microstructure

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,947.00
Award Year:
2008
Program:
STTR
Phase:
Phase I
Contract:
FA9550-08-C-0011
Award Id:
85087
Agency Tracking Number:
F074-009-0080
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2425 South 900 West, Salt Lake City, UT, 84119
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
089500540
Principal Investigator:
Akash
Senior Engineer
(801) 956-1032
akash@ceramatec.com
Business Contact:
Raymond Miller
CFO/Secretary
(801) 978-2176
rkm@ceramatec.com
Research Institute:
BRIGHAM YOUNG UNIV.
Brian Woodfield
C100 BNSN
Provo, UT, 84602
(801) 422-2093
Nonprofit college or university
Abstract
This STTR Phase I project is designed to develop a novel process for fabricating a nano-grained ceramic material for infrared windows. The proposed STTR builds upon our previous Phase I (Navy) SBIR experience to minimize risks and maximize the likelihood of success. This proposed work will utilize an innovative method to fabricate nanocrystalline alumina infrared window materials with significantly improved properties than conventional alternatives. High purity, unagglomerated nano-alumina powder will be synthesized using a novel chemical precipitation route giving 4 nm alumina particles. The powders will be compacted and formed into high density green compacts to eliminate the larger pores. Densification with minimal grain-growth will be achieved as a result of plasma activated sintering. Such a customized sintering schedule is expected to result in fully dense (Y 99.99%) alumina compacts with grain sizes less than 100 nm. These transparent IR windows are expected to exhibit superior mechanical strength.

* information listed above is at the time of submission.

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