Techniques have been developed for measuring the tensile properties of plasmasprayed
coatings which are used in thermal barrier applications. The measurements have included …

Tensile adhesion tests (TATs) which are normally utilized for industrial quality control
procedures have been used for research purposes to examine failure mechanisms of …

In this work thermally induced failure processes of plasma-sprayed thermal barrier coatings
were examined. Cracking processes give rise to noise which was monitored by acoustic …

Degradation in bond strength of plasma-sprayed thermal barrier coatings under thermal
cycling was evaluated by tensile adhesion tests. The bond strength and failure mode for two …

Thermal barrier coatings with a NiCrAlY bond coating and a 1.5 mm thick zirconia top
coating were air plasma sprayed onto a nickel-base substrate. The top coatings were …

Failure in plasma-sprayed thermal barrier coatings systems mostly takes place in the
ceramic topcoat or at the interface between the topcoat and the bondcoat. The failure …

Various combinations of plasma sprayed bond coatings and zirconia ceramic coatings on a
nickel-base superalloy substrate were tested by static thermal exposure at 1200/sup 0/C and …

The present work concerns the residual stresses in plasma-sprayed ZrO2-7Y2O3 thermal
barrier coatings deposited on Ni-base superalloy substrates which were kept at different …

The thermodynamical efficiency of heat engines such as gasturbines and diesel engines
can be improved by the application of an increased combustion temperature. To protect the …

The adhesion of various interfaces in thermal barrier coating systems strongly affects their
stability and thermal cycling life. A new spontaneous debonding technique and the four point …