Creep resistant nanocrystalline materials

The goal of this project is to develop a creep resistant material for the fabrication of micromechanical LiGA-based springs. Development of this material will be done on industrial electroplating setups and based on existing chemistries. The strategy followed in this project is inspired by the results of the PhD research of Dr. Zhen Sun, where stress-drop experiments carried out insitu during xray diffraction demonstrated the competition between dislocation and grain boundary relaxation based mechanisms.

Picture caption TEM image of nanocrystalline Ni Evolution of creep strain and evolution of the width of an Xray diffraction peak after stress drop


Industrial partner