Transparent YAG Ceramics for IR Windows Produced from High Purity YAG Nanopowders

Award Information
Agency:
Department of Defense
Branch
n/a
Amount:
$3,836,168.00
Award Year:
2008
Program:
SBIR
Phase:
Phase II
Contract:
FA8650-08-C-5400
Award Id:
82035
Agency Tracking Number:
F071-118-1003
Solicitation Year:
2007
Solicitation Topic Code:
AF071-118
Solicitation Number:
2007.1
Small Business Information
712 State Circle, Ann Arbor, MI, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
966230260
Principal Investigator:
Todd Stefanik
Senior Research Scientist
(734) 741-9522
todd.stefanik@nanocerox.com
Business Contact:
Peter Gray
President and COO
(734) 741-9522
pgray@nanocerox.com
Research Institution:
n/a
Abstract
Nanocerox proposes to use our custom formulated, high purity yttrium aluminum garnet (YAG) nanopowder for the production of YAG windows 6"by 12"by 10 mm thick with theoretical transmission from visible to 5µm wavelengths to demonstrate their utility in IR transparent material applications. YAG is a high strength ceramic which, with proper processing, can achieve our phase II optical goals of 20ppm refractive index uniformity and 200ppm/cm absorption at 1064nm wavelength in useful sized parts. In Phase I, Nanocerox demonstrated its ability to achieve stringent purity, composition, and processing specifications by repeatedly producing YAG ceramics with near theoretical transmission from visible to 5µm wavelengths and biaxial fracture strength of 339MPa using its patented Liquid-Phase Flame Spray Pyrolysis technique and appropriate consolidation and sintering procedures. Phase II technical objectives include both development of transparent YAG parts of useful size and high optical and mechanical quality, but the capability to scale these processes to high volume, reproducible production. Based on our phase I experiments, we see no impassable challenges in meeting these objectives. Success in Phase II will yield a manufacturable process capable of producing larger prototypes under consultation with Air Force technical officers.

* information listed above is at the time of submission.

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