University of Central Florida Research Foundation Inc

Lockheed Martin Missiles & Fire Control

Lockheed Martin Corporation

Siemens Energy, Inc.

Erik Brinley

Sudipta Seal

Leslie David Kramer

Edit L Braunstein

David Reid

Suresh Babu Krishna Moorthy

Clara A Rivero

Abhilash Vincent

A method for forming composite anti-reflective (AR) sol gel-derived coatings includes forming a first chalcogenide compound sol and forming a second chalcogenide compound sol. The first and second sol are mixed to form a mixed sol. The mixed sol is thermally treated at a maximum temperature of no more than 100&#xb0; C. for (i) drying the mixed sol to form a composite gel and (ii) removing OHspecies from the composite gel to form a highly amorphous state AR coating.

Sol-gel composite AR coating for IR applications

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 &#x2266;100&#xb0; 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 &#x3c;130&#xb0; C. and each of the solid layers provide a transmission at &#x3bb;=2950 nm, normal incidence and 1 mW power if placed on the IR transmissive substrate of &#x2267;99% of the transmission directly through the IR transmissive substrate.

Sol-gel coating methods and thin film coated substrates therefrom

A combustion turbine component includes a combustion turbine component substrate and a bond coating on the combustion turbine component substrate. The bond coating may include MAX(n=1,2,3) where M is selected from groups IIIB, IVB, VB, VIB, and VII of the periodic table of elements and mixtures thereof, where A is selected from groups IIIA, IVA, VA, and VIA of the periodic table of elements and mixtures thereof, and where X includes at least one of carbon and nitrogen. A thermal barrier coating may be on the bond coating.

Combustion turbine component having bond coating and associated methods

An infrared transmissive article includes an infrared transmissive substrate and a single layer anti-reflective (AR) composite broadband sol gel coating on a surface of the substrate. The AR coating includes a first chalcogenide including compound, and a second chalcogenide including compound intermixed with the first chalcogenide including compound. The percentages of the first chalcogenide and the second chalcogenide in the AR coating are selected to provide a refractive index of the AR coating that approximates the square root of a refractive index of the substrate.

Sol-Gel composite AR coating for IR applications

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Orlando, FL, United States of America

Erik Brinley