Sentence examples for bond coating from inspiring English sources
Mechanical disruption (rumpling) of bond coatings usually leads to significant displacement of the bond coating of the TGO and TGO-ceramic interfaces causing failure of the TBC.
Such TBC systems with SPS Pt rich γ γ′ bond coatings were compared to conventional TBC system composed of a β-(Ni,Pt Al bond coating.
Best results in TiAlN coated samples were obtained with 600 nm Ti bond coating thickness, 12 µm coating thickness and 0.25 µm substrate surface roughness (E14).
The specific weight gain of the thermal barrier coatings (TBCs) with aluminizing or with Pt-aluminizing bond coating was lower than that of TBCs with only HVOF sprayed bond coat.
The TBC systems evaluated were air plasma-sprayed (APS), yttria-stabilized zirconia (YSZ) top coatings with high velocity oxy fuel (HVOF -deposited NiCoCrAlY or NiCoCrAlYHVOF -depositedNiCoCrAlY
It gives a good choice as the bond coating of a TBC system.
The research results indicate that the suitable thicknesses of the bond-coating and top-coating are 60 120 μm and 300 420 μm, respectively, for the single ceramic layer YSZ/NiCoCrAlY APS-TBC.
The thermally grown oxide (TGO) growth at the interface of ceramic coating/bond coating in thermal barrier coatings (TBCs) was evaluated by ultrasonic reflection coefficient amplitude spectrum (URCAS).
The crack mainly propagated in the top coating for as-sprayed condition and at the top-coating/bond-coating interface after thermal aging for 2000 h.
With the increase of LZO substitutional ratio, the delamination position transferred from near top/bond coating interface to near the LZO/YSZ interface and finally to the inside of the LZO coating.
It is shown that, during the cooling stage, tensile stress occurs at the peak of thermally grown oxide/bond coating interface, and compressive stress lies in the valley.
