A Comparative Study of Two-Layer NiAl Bond Coat TBC and its Failure Mechanism
Thermal barrier coatings with one-layered/ two-layered NiAl bond coat were produced by electron beam physical vapor deposition (EB-PVD). Compared to the TBC with one-layered bond coat, the TBC with two-layered bond coat improved the thermal cycling resistance significantly. The failure mechanism of the two-layer NiAl bond coat TBC was investigated in this paper.
Wei Pan and Jianghong Gong
H. F. Li, Z. H. Zhou, H. A, K. Jiang, S. K. Gong, "A Comparative Study of Two-Layer NiAl Bond Coat TBC and its Failure Mechanism", Key Engineering Materials, Vols. 336-338, pp. 1770-1772, 2007