Optical Coherence Tomography Microstructure Analysis
Optical coherence tomography microstructural analysis is an interferometric method for non-contact depth profiling of microscopic layers. It detects subsurface delamination and improves quality control.
Physicochemical Mechanism of Action
Optical coherence tomography microstructure analysis uses the principle of interferometric diffraction. Light is directed onto a surface and the reflected wavefront is compared with a reference wave. The phase difference between the two waves provides information about the depth profiling of the surface and inner layers.
Metallurgical Relevance & Welding Risks
This analysis is particularly important for welding complex materials such as steel or aluminum. It detects delaminations, cracks, and other subsurface defects that are not visible by conventional microscopy. This improves the safety and service life of the weld.
Workshop Practice & Instructions
To obtain accurate analysis, the material should be analyzed at room temperature. The light source must be stable to deliver precise results. The resolution is typically 1-2 micrometers, which is sufficient for detecting fine structures and delaminations.