摘要 |
To reduce, as far as possible, the extent of the structural defects arising in the single crystals which have crystallised out, it is intended that the liquid is held during the crystallisation as a quasi-freely suspended sphere 6 of liquid and the substance in the liquid is crystallised out by means of methods known per se. Advantageously, the sphere 6 of liquid is held in suspension within a space region which is bounded from the outside by retaining elements 3. With an appropriate device, the retaining elements 3 can be fitted to the inner walls of a container 1. <IMAGE> |