Hoelzel, Markus; Gan, W. M.; Hofmann, M.; Randau, C.; Seidl, G.; Jüttner, P.a; Schmahl, Wolfgang W.
Rotatable multifunctional load frames for neutron diffractometers at FRM II - Design, specifications and applications.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 711: pp. 101-105
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Novel tensile rigs have been designed and manufactured at the research reactor Heinz Maier-Leibnitz (FRM II, Garching near Munich). Besides tensile and compressive stress, also torsion can be applied. The unique Eulerian cradle type design (ω, χ, and φ axis) allows orienting the stress axis with respect to the scattering vector. Applications of these tensile rigs at our neutron diffractometers enable various investigations of structural changes under mechanical load, e.g. crystallographic texture evolution, stress-induced phase transformations or lattice expansion, and the anisotropy of mechanical response.