Narrow Size Distribution of Spherical Metal Sulfide Nanoparticles

Award Information
Agency: Department of Defense
Branch: Army
Contract: W31P4Q-12-C-0123
Agency Tracking Number: A2-4571
Amount: $725,757.00
Phase: Phase II
Program: SBIR
Awards Year: 2012
Solicitation Year: 2010
Solicitation Topic Code: A10-008
Solicitation Number: 2010.1
Small Business Information
Lynntech, Inc.
7610 Eastmark Drive, College Station, TX, -
DUNS: 184758308
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Naima Bestaoui-Spurr
 (979) 764-2200
Business Contact
 G Hisaw
Title: Sr. Contracts Administra
Phone: (979) 764-2218
Research Institution
Crucial requirements for missile windows and domes include (i) excellent infrared transmission, (ii) ability to withstand extraordinary mechanical, thermal stresses and (iii) harsh environmental conditions. Multi-spectral ZnS has high transparency in a wide spectral range (0.4 m to 12 m). It is the material of choice for long wave-infrared and semi-active laser domes. The current method of preparation typically uses Chemical Vapor Deposition (CVD). However ZnS CVD has relatively low hardness which limits its use especially for air-borne military systems where particle or rain erosion may occur. A sintered compact powder by hot pressing nanoparticles prepared through a green process will eliminate the use of toxic chemicals and decrease the cost of ZnS while improving its mechanical and optical properties. During the Phase I project Lynntech developed a low temperature, green process for production of ZnS nanoparticles. This process is easily scalable and its simplicity will have an impact on the final goal cost of $500/kg of ZnS will be achieved. The goal of the Phase II project will be to demonstrate synthesis rates between 2-10 kg of nanopowder material on a daily basis with emphasis on purity (99.99%) and uniform size distribution.

* information listed above is at the time of submission.

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