Nondestructive Characterization of Coatings on Metal Alloys
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
There is a need to nondestructively evaluate coatings on metal alloys that must endure high-temperature or highly oxidizing environments, such as for aircraft turbine blades. Such coatings are opaque and of the order of 25 μm in thickness. Characteristics of interest include the uniformity and thickness of the coating, which must be sufficient to protect the substrate from oxidation at high temperatures.