A study examining the application of ultrasonic testing to plasma sprayed coatings is
presented. It is shown that bonding defects in aluminium and molybdenum coated samples …

Measurements have been made of the attenuation in thin samples of plasma-sprayed
molybdenum, nickel aluminide and aluminium coating materials in the frequency range 2.5 …

A thermal wave technique for the non-destructive examination of plasma-sprayed coatings is
described. Measurements of molybdenum NiAl and aluminium coatings are presented to …

Measurements were made of the attenuation in thin samples of plasma-sprayed
molybdenum, nickel aluminide and aluminium in the frequency range 2.5–15 MHz. It was …

Porosity is an important factor in plasma-sprayed coatings, especially ceramic coatings.
Excessive poros-ity can adversely affect the performance of the coated component in …

Ultrasonic methods are developed for characterizing plasma-sprayed coatings. First,
ultrasonic spectroscopy is used to determine the acoustic properties of various plasma …

Subject: N24500*-Engineering-Materials Testing; BONDING; COATING; CORROSION
PROTECTION; FREQUENCY; HEAT RESISTING METALS; INSPECTION; MATERIALS …

In ultrasonic testing of thermally sprayed coatings difficulties often occur, which relate partly
to poor lateral and axial resolution, partly to the coarse grained structure of the coatings, and …

Résumé Les résultats expérimentaux présentés montrent que les techniques
photothermiques peuvent être utilisées avec profit pour l'évaluation de la qualité d'un …

Non-destructive characterization of plasma-sprayed ZrO2 coatings by ultrasonic surface waves
Page 1 Thin Solid Films, 224 (1993) 177-183 177 Non-destructive characterization of …