| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7880971 | Acta Materialia | 2014 | 9 Pages |
Abstract
The durability of thermal barrier coatings (TBCs) deposited on Hf-modified B2 NiAl bond coatings has been investigated under thermal cycling conditions. The rate of bond coat oxidation and rumpling during thermal cycling was characterized and the cycles to failure measured. The location of cycling-induced cracks in the TBC multilayer was influenced by the bond coat composition but variation in TBC lifetime was small, despite the different failure modes. Analysis of the cycle-dependent degradation phenomena demonstrate a trade-off between rumpling resistance and interfacial toughness as a function of bond coat composition.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
R.W. Jackson, D.M. Lipkin, T.M. Pollock,