Non-destructive testing of the degree of curing with unilateral NMR
Authors: Dr. rer. nat. Norbert Halmen, Dipl.-Ing. Ulrich Hack, Dr. rer. nat. Linda Mittelberg, Dr. Eduard Kraus, Dr. rer. nat. Benjamin Baudrit, Dr. rer. nat. Thomas Hochrein, Prof. Dr.-Ing. Martin Bastian
Adhesive bonding technology is one of the key technologies of the 21st century. Trends such as e-mobility and lightweight construction will act as a driving force in the future too. At the same time, the quality assurance on adhesive-bonded joints is becoming ever more significant, above all with regard to the aspect of non-destructive testing. Unilateral nuclear magnetic resonance (uNMR) can be used in order to measure the curing state of adhesives in a contactless method, directly in adhesive-bonded components. The results of uNMR are comparable with those of established laboratory procedures and reveal the potential for industrial utilisation for the monitoring of the degree of curing.
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