Welcome to the public webpage of the Twistr Project!
The project deals with magnetic shape memory alloys, with Ni-Mn-Ga being a prototype example, known for their functionalities, particularly for giant (12%) magnetic field-induced strain.
The key to material functionalities is its ferroelastic twinned martensite microstructure. However, the usual spontaneously created microstructures show poor performance often far from the true material possibilities. We aim to develop the methods of twin microstructure control, i.e. creating permanent twin microstructures, resulting in significantly improved functional performance.
The problem will be dealt on various scales: on nanoscale we will study the intrinsic mobility of twins, on microscale we will study the mechanisms of twin formation and twin-twin and twin-defect interactions. Based on these studies we will design methods of twin microstructure control and evaluate on macroscale the resulting properties and improvements in the functional behavior. The ultimate aim is to develop twinned material with properties close to the theoretical limits.
For news, go to www.twistr.cz
Start date is: 1/1/2021
End date is: 31/12/2023
This project has received funding from the Czech Science Foundation under grant agreement No 21-06613S – TWISTR.