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Weathering Investigation of PVC Coatings on Iron Sheets by the NMR MOUSE

A new kind of MOUSE–the NMR mobile universal surface explorer–makes NMR investigations possible on composites with ferromagnetic components, which were previously excluded from such studies, because inhomogeneous magnetic fields are used in the first place. An example application is described, to relaxation measurements of polyvinylchloride (PVC) coatings on iron sheets. It is demonstrated that new …

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Die NMR-Maus

Während die Kernspintomographie in der medizinischen Diagnostik einen festen Platz hat, ist ihr Einsatz in der Materialforschung noch relativ unbekannt. Dennoch bietet sie im Bereich der Kunststoffe und des Stofftransports vielfältige Anwendungsmöglichkeiten und kann zusätzliche Information zu etablierten Methoden der zerstörungs‐freien Materialprüfung liefern [1]. An dem neu eingerichteten Zentrum für Magnetische Resonanz der RWTH‐Aachen wurde …

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NMR-Bildgebung und Materialforschung

Magnetic resonance imaging (MRI) is a powerful tool in medical diagnostics. But this technique of nuclear magnetic resonance (NMR) ist also receiving increasing attention in materials science because it is non‐invasive and because of the abundance of different contrast parameters which reflect the molecular properties of the samples. For instance, distributions in microscopic molecular re‐orientations …

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NMR Imaging of Elastomers: A Review

From curiosity driven investigations about 10 years ago NMR imaging of materials has developed into a useful tool for characterization of polymers, in particular of elastomer products. A clear indicator of this development is the increasing number of imaging spectrometers in use at industrial research and quality-control laboratories. Typical applications of NMR imaging to elastomers …

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Degradation of Historical Paper: Nondestructive Analysis by the NMR-MOUSE®

The NMR-MOUSE is a mobile sensor for single-sided NMR inspection of organic materials which takes advantage of the principles of magnetic resonance and inside-out-NMR. Historical books dating from the 17th century were measured at different points by positioning the NMR-MOUSE on the paper. Different degrees of paper degradation can be discriminated from the regularized inverse Laplace transform of the …

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