As a highly secure and reliable system, aviation faces challenges including digital
transformation, high production operation costs, low maintenance efficiency, and intensive …

Thermal barrier coatings (TBCs), as effective thermal protection separating the substrate
from high-temperature combustion gases and reducing the substrate temperature, are …

Noninvasive inspection of layered structures has remained a long-standing challenge for
time-resolved imaging techniques, where both resolution and contrast are compromised by …

Non-destructive detection of coating thickness is important after coating deposition and
during service. The present work is to establish a measurement method for fast inspection …

Terahertz (THz) technology has firmly established itself as an effective sensing and
nondestructive testing (NDT) technique for the detection of substances and physicochemical …

Damage detection of composite materials is crucial to monitor the component condition over
the life cycle for the maintenance management and possible replacement. Delamination …

The uneven and complicated porose microstructure of thermal barrier coatings brings a big
challenge for accurate and reliable thickness measurement due to the resultant change of …

Terahertz (THz) time-domain pulse detection technique has recently attracted great attention
in the nondestructive testing (NDT) field due to its superior detection accuracy and sensitivity …

In this article, a novel nonlinear frequency modulation (NLFM) photothermal radar whose
instantaneous frequency curve is a concave quadratic function is proposed and further …

In additive manufacturing, material melting-solidification often introduces defects like
porosity, lack-of-fusion, delamination, and crack. Such defects are detrimental to the …