Reveal coating thickness and hidden features in 3D

How uniform is your coating, and what lies beneath the surface? With Micro-CT, we can measure coating thickness and reveal hidden features non-destructively in full 3D.

In this demonstration case, Danish Technological Institute collaborated with Lightera Denmark to analyse coated glass fibres with a diameter of approximately 200 µm. Pores were intentionally introduced into the coating to demonstrate how Micro-CT can be used to detect and characterize subsurface features.

Micro-CT is a non-destructive 3D imaging technique that enables visualization and quantification of internal structures with sub-micrometre resolution. It complements conventional surface-based methods by adding internal 3D information that can be essential for obtaining a complete understanding of the sample.

Using Micro-CT, we delivered insight into:

• Coating layer visualization and thickness measurement
• Detection and characterisation (size, shape, and distribution) of pores in the coating

The result is detailed 3D documentation that can support product development, process optimization, quality assurance, and performance validation.

A broad spectrum of analysis techniques

We often combine results from several separate types of characterisation techniques to give you the best possible answer to your needs. Sometimes, a sample is first characterised with Micro-CT, and additional information can be added by doing characterisation with electron microscopy (SEM).

In our labs, we perform characterisation with light microscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy facilities (SEM/EDX, FIB/SEM), infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS).

Get an overview of our methods here.

Contact us

Please contact Susan Rudd Cooper at srco@dti.dk or +45 7220 1754 for more information.