Materials with nanocrystalline and amorphous structures
In order to produce functional materials resource-efficient and with properties optimized for specific applications the microstructure of these materials is of crucial importance.
Melt-spinning, also referred to as rapid solidification, allows the synthesis of alloys with an amorphous or nanocrystalline structure. Therefore the material is inductively melted in a crucible and subsequently cast via a nozzle onto copper wheel, which is fast rotating and water-cooled. On the wheel surface the material is solidified with cooling rates up to 106 K/s, in this way crystallization on the microscale can be avoided. By adjusting the process parameters specific atomic arrangements on the nanoscale can be created