Surface Finising Polycrystalline Alumina Missile Domes

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$69,938.00
Award Year:
2005
Program:
SBIR
Phase:
Phase I
Contract:
N41756-05-M-1387
Agency Tracking Number:
N042-172-0436
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
CERANOVA CORP.
P. O. Box 278, Hopkinton, MA, 01748
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Marina Pascucci
PI
(508) 460-0300
mpascucci@ceranova.com
Business Contact:
Marina Pascucci
President
(508) 460-0300
mpascucci@ceranova.com
Research Institution:
n/a
Abstract
Increasing missile velocities coupled with higher sensor performance requires commensurate improvements in dome performance. Cutting large sapphire crystals into hemispherical domes has become a commercially viable, though relatively expensive, business. The machining and polishing of sapphire into more aerodynamic dome shapes, such as an ogive, is a much more difficult and expensive endeavor. Given the difficulty of single point turning of hard materials for ogive domes, CeraNova's team is proposing an alternative approach. The proposed approach involves applying a technology which is routinely used to grind precise shapes with highly polished surfaces from hard ceramic materials. This technology is an economical commercial manufacturing method that offers acceptable material removal rates, ultra-high precision, and optical quality surface finishes. Experience with this unique, practical method of machine finishing makes us highly confident that it is a viable and economical method for grinding missile domes with ogive shapes. CeraNova also proposes transparent polycrystalline alumina (PCA) as an alternative material for this application. CeraNova recently demonstrated a low-cost, powder processing route for producing transparent, fine-grained PCA that has the potential to meet or exceed the capabilities of sapphire in demanding infrared missile dome applications.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government