Anharmonicity of structure modulation in Ni-Mn-Ga revealed by neutron diffraction
Using neutron diffraction data obtained at ILL Grenoble, we discovered that the structure modulation of Ni-Mn-Ga alloys is highly anharmonic, with the 5th harmonic being dominant and having an amplitude…
Stability of incommensurate structure upon tensile loading of Ni-Mn-Ga-Fe (new publication)
Ni-Mn-Ga(-Fe) system exhibit interesting evolution between commensurate and incommensurate modulated structures of martensite. In this publication, we study the effect of temperature and tensile loading. We show that the transition…
SA4SAN – Smart Acoustics for Smart Alloys Network meeting and workshop, Dec 6-7, 2023.
The SA4SAN (Smart Acoustics for Smart Alloys Network) meeting and workshop took place at the Institute of Thermomechanics on Dec 6-7, 2023. This meeting gathered members of the informal SA4SAN…
Lattice instability and structure modulation as a precondition for the magnetic shape memory effect – new publication
Project researcher Marek Vronka found and present in his publication new type of structure modulation in Ni-Mn-Ga-based alloy, which is linked with the lattice instability and resulting supermobility of twin…
Project results at the 20th International Microscopy Congress
A poster HRTEM and electron diffraction revealed modulation in Ni-Mn-Ga-Co-Cu magnetic shape memory alloy: Is the modulation the necessary condition for the giant magnetic field-induced strain? was presented at IMC20,…
Presentation of project results on anharmonic crystal structure modulation at IUCr conference
The important projectr findings on anharmonic crystal structure modulation were presented at IUCr 2023, 26TH CONGRESS AND GENERAL ASSEMBLY OF THE INTERNATIONAL UNION OF CRYSTALLOGRAPHY, 22-29 August 2023 | Melbourne…
Exceptionally small, <1 GPa, Young modulus of Ni-Mn-Ga
The important finding on exceptionally small Young modulus of Ni-Mn-Ga has been summarized in our new publication in Acta Materialia: Cejpek, P., Drozdenko, D., Mathis, K., Colman, R. H., Dopita,…
Participation and project work presentations at ICFSMA 2023
We presented the project results at ICFSMA 2023, THE 7th INTERNATIONAL CONFERENCE ON FERROMAGNETIC SHAPE MEMORY ALLOYS, College Station, Texas, May 14 – 19, 2023, the major conference in the…
Constant plane shift model of martensite structure – a new project publication
We are happy to announce a new project publication on the investigation and modeling of martensite structures of Ni-Mn-Ga-based magnetic shape memory alloys. The work was an international collaboration of…
Doctoral thesis of project researchers (P. Veřtát & M. Rameš)
It is a pleasure to announce that, on 17.3.2023, two project researchers, P. Veřtát and M. Rameš successfully defended their doctoral thesis: P. Veřtát, Characterisation of Martensitic Phases in Ni-Mi-Ga-based…