Pelapisan Thermal Barrier Coating (TBC) NiAl pada Paduan Logam Berbasis Co

The effect of platinum on diffusion kinetics in beta-NiAl: implications for thermal barrier coating lifetimes.

Platinum is added to thermal barrier coatings (TBCs) as it is observed empirically to extend their lifetime, but the mechanism by which Pt acts is unknown. Since Pt has been proposed to alter diffusivities in NiAl, a key component of TBCs, we use first-principles quantum mechanics calculations to investigate atomic level diffusion mechanisms. Here, we examine the effect of Pt on five previously...

FINITE ELEMENT ANALYSIS (FEA) IMPLEMENTATION OF THERMAL BARRIER COATING (TBC) LIFETIME PREDICTION METHODS by

Crack propagation in thermal barrier coating systems

Thermal barrier coating systems are used on top of highly stressed components in gas turbines to protect the nickel-based substrates. A well-established thermal barrier coating system consist of the bond-coat (BC) and the thermal barrier coating (TBC). A third layer is grown during service: the thermally grown oxide (TGO) between the BC and the TBC. The coatings fail in service because of diffe...

study of high temperature oxidation of duplex and functionally graded materials of thermal barrier coating (fgm tbc)

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Evaluation of thermal conduction anisotropy on Thermal Barrier Coating

The microstructural analysis of Thermal Barrier Coatings, deposited according to the Air Plasma Spray technology, furnishes information according which a strong orthotropic thermal conductivity is expected to be measured for such a material. Pulsed experiment with a localized heating source and thermographic temperature recording, permit to evaluate both the in-depth and in-plane components of ...