FOR IMAGE INTENSIFIERS

Award Information
Agency: Department of Defense
Branch: Army
Contract: N/A
Agency Tracking Number: 4428
Amount: $49,930.00
Phase: Phase I
Program: SBIR
Awards Year: 1986
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
10 Springborn Ctr, Enfield, CT, 06082
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 WILLIAM H HOLLEY
 (203) 749-8371
Business Contact
Phone: () -
Research Institution
N/A
Abstract
IMAGE INTENSIFIER TUBE ASSEMBLIES ARE EXPERIENCING FAILURE DUE TO LEAKAGE CURRENTS ALONG THE GLASS/POTTANT INTERFACE. IN MOIST ENVIRONMENTS, WATER PENETRATES THE RTV SILICONE TO THIS INTERFACE, RESULTING IN LEAKAGE CURRENTS LARGE ENOUGH TO OVERWHELM THE POWER SUPPLY. THIS FAILURE IS BEING AGGREVATED BY POOR COUPLING (ADHESION) BETWEEN THE GLASS AND THE SILICONE POTTANT, HYDROPHILIC SI-OH GROUPS AT THE SURFACE OF THE GLASS, AND POSSIBLY BY RESIDUAL CURE BYPRODUCTS IN THE CONDENSATION-TYPE RTV BEING USED. THIS PHASE I PROGRAM WILL INVESTIGATE SILANE-BASED COUPLING AGENTS AND PRIMERS TO REACT WITH THE SI-OH GROUPS AND RENDER THEM HYDROPHOBIC AND TO ENHANCE ADHESION BETWEEN THE GLASS AND POTTANT. THIS PROJECT WILL ALSO EVALUATE ADDITION-CURE TYPE RTV SILICONES AND ALSO EVA RESINS AS POTTANTS LOW IN BY-PRODUCTS AND LESS SENSITIVE TO A MOIST ENVIRONMENT. THE MOST PROMISING COUPLING AGENT/POTTANT SYSTEMS WILL BE USED TO POT INTENSIFIER TUBE ASSEMBLIES WHICH WILL BE SUBJECTED TO HIGH RELATIVE HUMIDITY AND MONITORED FOR INTENSIFIER OPERATION. THE MOST PROMISING POTTANT SYSTEM WILL BE RECOMMENDED TO THE COMMUNICATION-ELECTRONICS COMMAND FOR MORE EXTENSIVE TESTING.

* Information listed above is at the time of submission. *

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