Arc test
The arc test is an essential procedure in surface technology that is used to evaluate the adhesive strength of coatings or material layers. In this test, an electric arc is directed at the surface of the coating or material to be tested. The application of electrical energy creates an intense arc that generates heat and thermally stresses the interface between the coating and the underlying substrate.
The increased temperature causes the coating to expand and detach from the substrate if the adhesion is insufficient. The quality of adhesion is assessed by visual inspection or by measuring the size of the detached area. A large detached area indicates poor adhesion, while a smaller or no detached area indicates good adhesion.
The arc test enables manufacturers to assess the quality of their coatings, identify potential adhesion problems and take appropriate measures to improve adhesion. By adjusting coating materials, methods or parameters, manufacturers can optimize adhesion and increase the performance of their products.
Back to listThis definition is taken from the surface technology encyclopedia from Surface Technology Online. You can find many more technical terms from the surface technology industry in our lexicon overview.
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