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 percursor 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 less than/equal to 100 degrees celcius 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 predetermined thickness. The resulting solid layers re low water content layers that can be evidenced by transmission measurements. The coated substrate can be an IR transmissive substrate having a recrystallization temperature < 130 degrees celcius and each of the solid layers provide a transmission at 2950 nm, normal incidence and 1 mV po

Document Type

Patent

Patent Number

US 8,329,299 B2

Application Serial Number

12/059,948

Issue Date

12-11-2012

Current Assignee

Joint Assignment w/UCFRF: Lockheed Martin Corporation

Assignee at Issuance

Joint Assignment w/UCFRF: Lockheed Martin Corporation

College

Advanced Materials Processing & Analysis Center (AMPAC)

Department

Advanced Materials Processing & Analysis Center (AMPAC)

Allowance Date

8-27-2012

Filing Date

3-31-2008

Assignee at Filing

Advanced Materials Processing & Analysis Center (AMPAC)

Filing Type

Nonprovisional Application Record

Donated

no

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