Laser ultrasonics has come of age in such diverse industrial applications as in-process
evaluation during steel processing [1] and composite air frame inspection [2, 3]. This …

Laser ultrasonics, an esoteric laboratory curiosity in the 1960s, is finding its niche in industry
today. The technique has evolved concurrently with advances in electronics and optics to …

Metallic coatings are produced for various purposes, and methods employed for testing their
quality vary accordingly. Many tests have been developed in the past to determine the …

Thermal spraying processing usually use nickel-aluminum alloy system as major powder
due to its strong adhesion to substrates. The contents of powder material and the processing …

Plasma sprayed coatings are widely used to protect parts from aggressive environments. In
applications such as land-based gas turbines, Thermal barrier Coatings (TBCs) are utilized …

Metal coatings are of interest in applications where erosion, corrosion, or mechanical
degradation result from chemical, temperature and mechanical insults to the surface. The …

The non-destructive characterization of thermal spray coatings for thermal barriers, anti-wear
or anticorrosion coatings is of particular importance for quality control, but it can be also very …

The use of composite materials for aerospace applications has markedly increased over the
past two decades. Typically, a large percentage of composite aircraft components are …

Non-destructive testing of hard-coatings is highly desirable. The available test methods are
continuously faced with many new demands for engineered surfaces; this arises from …

Laser techniques for ultrasonic generation and reception have potential for a wide range of
non-contact measurements, chiefly because they can be used for defect detection and …