Certification of coatings

The main subjects of R&D refer to the choice of hardening technology to increase service life of a particular product or create functional coatings on its surface.

Approximate plan of certification of coatings

Used methods of study and certification of coatings


Method of study

Thickness of modified layer or coating

Calotest, ellipsometry, profilometry, microscopy

Adhesion of coating

Scratch Test, Rockwell Cone Impact, Tear Test

Physical and mechanical properties (hardness, modulus of elasticity, elastic recovery)

Instrumental indenting

Tribological properties (coefficient of friction, wear parameters, running-in time, heat release in friction)


Microabrasive wear parameters


Volumetric strength properties

Tensile tests

Adhesion of lubricant (oil retention)

Measurement of adhesion energy, rapid analysis of surface tension

Residual stresses

Using the resistive electrocontact method

Coating thickness

Anodic polarization, microscopy


2D and 3D profilometry

Dielectric properties of coatings

Measurement of electrical characteristics of the surface layer

Microstructure, element and phase composition, morphology, topography and nanoprofilometry

Raster (scanning) and transmission electron microscopy, scanning electron microscopy with X-ray spectral analysis, scanning (atomic force) probe microscopy, BFE electron spectroscopy, X-ray phase analysis, infrared spectroscopy, X-ray fluorescence spectroscopy

Equipment for the attestation of coatings