Kernforschungsanlage Julich Gesellschaft MIT Beschrankter Haftung

Kernforschungsanlage Julich

Udo Linke

Harald Ibach

Karl Boden

A crystalline bar is drawn by a zone-melting process or from a melt in a crucible utilizing a magnetic suspension housing, in addition to an axial stabilization magnet, a radial stabilizer surrounding the core and including sensors for the radial position of the core-operating controllers for electromagnets surrounding the core to restore the core to its setpoint position. The fully magnetic suspension of the core eliminates friction while allowing enclosure of the crystal growth compartment to improve the quality of the crystal growth process.

Bar and crucible magnetic suspension for a crystal-growing apparatus

A complex relative movement in a direction transverse to the crystal draw direction is imparted at the interface between the growing crystal bar and a melt of the crystallizable material by controlled electrical energization of a radial stabilizer acting upon the magnetizable core by which either the bar or the crucible or a supply bar for the material, or both, can be suspended.

Growing community of inventors

Duren, Germany

Udo Linke