Location
Brunswick, ME
Start Date
1-1-1992 12:00 AM
Description
A need for NDE of plasma-sprayed coatings has been a serious problem in the industry for a long time. Traditional methods like ultrasonics or x-ray absorption usually cannot be used because of the high attenuation and the heterogeneity of the coating. On the other hand, sub-surface flaws cannot be detected with liquid penetration technique and electromagnetic methods are not suitable for dielectric coating. However, photothermal techniques have been successfully applied [1,2], but first the introduction of fast infrared scanning systems has lead to reasonable speed of inspection from the practical point of view.
Book Title
Review of Progress in Quantitative Nondestructive Evaluation
Volume
11A
Chapter
Chapter 1: Fundamentals of Standard Techniques
Section
Thermal Techniques
Pages
441-446
DOI
10.1007/978-1-4615-3344-3_55
Copyright Owner
Springer-Verlag US
Copyright Date
January 1992
Language
en
File Format
application/pdf
Fast Photothermal Inspection of Plasma-Sprayed Coatings of Primary Circulation Seal Rings of a Nuclear Reactor
Brunswick, ME
A need for NDE of plasma-sprayed coatings has been a serious problem in the industry for a long time. Traditional methods like ultrasonics or x-ray absorption usually cannot be used because of the high attenuation and the heterogeneity of the coating. On the other hand, sub-surface flaws cannot be detected with liquid penetration technique and electromagnetic methods are not suitable for dielectric coating. However, photothermal techniques have been successfully applied [1,2], but first the introduction of fast infrared scanning systems has lead to reasonable speed of inspection from the practical point of view.
