ISSN:
1432-0681
Keywords:
Key words thermal barrier coating
;
delamination
;
heat flow barrier
;
fracture mechanical analysis
;
functionally graded materials
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Summary The problem of how to avoid damage of TBCs has been approached by calculating the energy release rate of two crack configurations under thermal loading. This has been done for the limiting cases of perfect and lacking heat transfer across the crack. Suitable grading of TBCs is a means of suppressing the tendency to delamination and damage by both decreasing the energy release rate G and increasing its critical value G c . TBCs can be graded such that delamination cracks would be deflected into depth where G c is sufficiently high to avoid crack propagation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s004199900057
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