Adhesion measurement procedures for kinetic and thermal spray coatings using a stud-pull tester

This paper reports on the use of an epoxy-coated stud-pull device to perform adhesion measurements on kinetic and thermal spray coatings for metal/metal and metal/ceramic systems. Four different methods were used for testing. The first method used the stud-pull device without a retaining cylinder pu...

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Bibliographic Details
Published in:Journal of adhesion science and technology 2004-01, Vol.18 (5), p.597-606
Main Authors: Elmoursi, Alaa A., Patel, Nilesh
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Physicochemistry of polymers
Polymer industry, paints, wood
Technology of polymers
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Summary:This paper reports on the use of an epoxy-coated stud-pull device to perform adhesion measurements on kinetic and thermal spray coatings for metal/metal and metal/ceramic systems. Four different methods were used for testing. The first method used the stud-pull device without a retaining cylinder pushing against the coating. The second method used a retaining cylinder. In the third method the coating was machined by electric discharge machining (EDM) to form a disc-like structure with a diameter identical to that of the epoxy-coated stud. The fourth method replaced the EDM machining by controlled rotary-disc cutting using SiC slurry to machine a disc-like structure in the coating. The first two methods gave a relatively consistent measurement of adhesion, provided the coating thickness is less than 2.5% of the stud diameter. For thicker coatings, both the third and fourth methods are recommended.
ISSN:0169-4243
1568-5616
DOI:10.1163/156856104839248