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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur
KFM 32: Crystal Structure Defects / Real Structure / Microstructure II
KFM 32.6: Vortrag
Freitag, 22. März 2024, 11:20–11:40, E 124
Quantum sensing for materials testing — •Simon Philipp1, Niklas Mathes2, Marvin Feuerhelm1, Ali Riza Durmaz1, Xavier Vidal3, Rudolf Schäfer4, Thomas Straub1, and Christian Elsässer1 — 1Fraunhofer IWM, Wöhlerstrasse 11, 79108 Freiburg — 2Fraunhofer IAF, Tullastraße 72, 79108 Freiburg — 3Tecnalia, Parque Científico y Tecnológico de Gipuzkoa Mikeletegi Pasealekua, 2, E-20009 Donostia-San Sebastián (Gipuzkoa) — 4Leibniz-Institut für Festkörper- und Werkstoffforschung, Helmholtzstraße 20, 01069 Dresden
Micromagnetic materials testing has been utilized for the measurement of a variety of relevant properties for material sciences and engineering, some of which being residual stress, micro-structure, or hardness. Recently, it has been shown [1] that the inverse magneto-strictive, or Villari effect [2] can potentially be exploited to retrieve a magnetic signature of fatigue and early-stage crack initiation in micro-mechanical specimens.
In this work, we demonstrate magneto-mechanical testing of ferromagnetic materials as a novel use case for quantum magnetometry at the interface of basic research and industry. As an example, we show recent data on magneto-mechanical testing of Fe and FeSi micro-specimen under ambient conditions, using a combination of different quantum sensors.
[1] P. A. Koss et al., Applied Sciences 12, 1329 (2022). [2] G. Riesgo et al., Materials (Basel, Switzerland) 13 (2020). [3] S. C. Scholten et al., Journal of Applied Physics 130, 150902 (2021).