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Consolidation of Nanograin Ceramics

Award Information

Agency:
Department of Defense
Branch:
Army
Award ID:
73686
Program Year/Program:
2005 / SBIR
Agency Tracking Number:
A043-170-2701
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
CeraNova Corporation
P. O. Box 278 Hopkinton, MA -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2005
Title: Consolidation of Nanograin Ceramics
Agency / Branch: DOD / ARMY
Contract: W31P4Q-05-C-R105
Award Amount: $119,820.00
 

Abstract:

The proposed program will demonstrate the feasibility of consolidating nanoparticle dispersions of high purity yttria (Y2O3) to produce fine grain (< 1 ¿m) infrared transparent material for supersonic missile domes and windows. Previously funded efforts to produce IR transparent yttria resulted in material with high transmittance but insufficient strength to withstand the mechanical and thermal stresses imposed by the application conditions. Nano and small grain ceramics offer the potential for improved mechanical strength over their larger grain counterparts. CeraNova Corporation has developed techniques for shaping and densifying nanoparticle alumina to produce transparent polycrystalline alumina with grain size 400-700 nm, excellent transmittance in the MWIR (3-5¿m), and mechanical properties superior to sapphire. These techniques, and previous experience gained from earlier work on transparent yttria, will be applied to the proposed program, which will utilize dispersions of yttria-based nanoparticulates supplied by a nano-powder provider. CeraNova's proposed approach involves shape-forming and consolidation of particle dispersions and a two-stage densification process to achieve full density and control grain growth. The objective is to achieve transmittance ~80% in the 3-5¿m region for 2mm thick disks and mechanical strength twice as great as that of the conventional, large grain equivalent.

Principal Investigator:

Marian R. Pascucci
Principal Investigator
5084600300
mpascucci@ceranova.com

Business Contact:

Marina R. Pascucci
President
5084600300
mpascucci@ceranova.com
Small Business Information at Submission:

CERANOVA CORP.
P. O. Box 278 Hopkinton, MA 01748

EIN/Tax ID: 043257002
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No