US Patent:
20080311390, Dec 18, 2008
Inventors:
Sudipta Seal - Orlando FL, US
Erik R. Brinley - Orlando FL, US
Suresh Babu Krishna Moorthy - Orlando FL, US
Abhilash Vincent - Orlando FL, US
David Reid - Orlando FL, US
Clara Rivero - Orlando FL, US
Assignee:
University of Central Florida - Orlando FL
Lockheed Martin Corporation - Bethesda MD
International Classification:
B32B 5/00
B05D 3/02
B05D 3/00
Abstract:
A method for depositing sol-gel derived coatings on substrates to form coated substrates includes the steps of providing a first solution including at least one sol precursor and at least one solvent. A water comprising solution is added to the first solution to form a sol-gel. The sol-gel is deposited on a substrate. The sol-gel layer on the substrate is dried/cured at a temperature ≦100 C. for at least 10 minutes to form a solid layer, wherein the solid layer has a thickness from 50 nm to 110 nm. The depositing and curing steps are repeated at least once until combined thickness of the solid layers forms a coating of a predetermined thickness. The resulting solid layers are low water content layers that can be evidenced by transmission measurements. The coated substrate can be an IR transmissive substrate having a recrystallization temperature