Hongbo Guo

High temperature performance of multilayer (Gd0.2Dy0.2Ho0.2Tm0.2Yb0.2)4Hf3O12 thermal/environmental barrier coatings at 1450°C.

A novel thermal/environmental barrier coating (T/EBC) composed of a Si-15 mol% HfO 2 bond coat, a Yb 2 SiO 5 -50mol% Yb 2 Si 2 O 7 intermediate layer, and a (Gd 0.2 Dy 0.2 Ho 0.2 Tm 0.2 Yb 0.2 ) 4 Hf 3 O 12 (15SH/50YbMDS/(5RE) 4 Hf 3 O 12 ) top layer was fabricated by air plasma...