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Title: Method for non-destructive evaluation of ceramic coatings

A method for evaluating the condition of a ceramic coating deposited on a substrate comprising illuminating the ceramic coating with light, measuring the intensity of light returned from the ceramic coating as function of depth in the coating and transverse position on the coating, and analyzing the measured light intensities to obtain one or more of intensity of the light returned from the exposed coating surface relative to the intensity of light returned from the coating/substrate interface, intensity of the light returned from the coating/substrate interface relative to the intensity of light returned from the bulk of the ceramic coating, determination of roughness at the exposed surface of the ceramic coating, and determination of roughness of the interface between the ceramic coating and underlying bond coat or substrate.
Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
1331315
Report Number(s):
9,488,470
14/180,914
DOE Contract Number:
SC0001872
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Feb 14
Research Org:
UNIVERSITY OF CONNETICUT, Farmington, CT (United States); SOUTHWEST SCIENCES INCORPORATED, Sante Fe, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE