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Study of the acoustic and thermal response of an elastically anisotropic solid to a sub-nanosecond laser pulse in transient grating spectroscopy
Jakub KuÅ¡nÃr, Tomáš Grabec, Petr Sedlák +2
Transient grating spectroscopy (TGS) is a material characterization technique based on laser-induced thermoelastic excitation of thermal and acoustic gratings. On opaque samples, t…
In-situ observation of elastic instability of stress-induced B19 martensite in thin NiTi wires
Petr Sedlák, Miroslav Frost, Martin Å evÄÃk +2
A laser-ultrasonic approach was used to measure elastic properties of a superelastic nickel-titanium wire with the aim to evaluate their evolution with stress and temperature in st…
Elastic constants of single-crystalline NiTi studied by resonant ultrasound spectroscopy
Lucie Bodnárová, Michaela Janovská, Martin Å evÄÃk +6
Contactless, laser-based resonant ultrasound spectroscopy was utilized to monitor changes in elastic properties in single-crystalline NiTi shape memory alloy. It was observed that…
Shear Deformation of Nonmodulated NiMnGa Martensite: An Ab Initio Study
Martin Heczko, Petr Šesták, Hanuš Seiner +1
The impact of shear deformation in system of non-modulated (NM) martensite in NiMnGa ferromagnetic shape memory alloy is investigated by means of ab…