Other

Adelwitz Technologiezentrum Gmbh

Sanko Tekstil Isletmeleri San. Ve Tic. A.s.

Jenoptik Ldt Gmbh

Gebrüder Decker Gmbh & Co. Kg

Werfel, Frank

Beyer, Wolfgang

Frank Werfel

Christhard Deter

Dietmar Kopp

Ingo Jaeckel

Viktor Betke

Uta Fl&ouml;gel-Delor

Jürgen Seeberger

Gerhard Langbein

Uta Flögel-Delor

Rolf Rothfeld

Dieter Wippich

Wolfgang Beyer

Uta FLÖGEL-Delor

A device and a method for winding and twisting fibrous material in ring spinning and ring twisting frames are disclosed. The device and method allow the operating speed of the frames to be substantially increased, achieve higher productivity during ring spinning, and reduce the outlay, in terms of time and material, for assembling and servicing the device. This is achieved in that at least two high-temperature superconducting stators, together with the thermally connected cooling devices thereof, are arranged in a contactless manner and in parallel with one another along the progression of the spindle row, and the magnetic field-generating rotors, oriented coaxially with respect to the spindle, are introduced in a magnetically levitating manner in the magnetic field of the continuous intermediate space, between the stators which are adjacent in each case.

Device and method for winding and twisting fiber material in ring spinning or ring twisting frames

A device () for treating objects, in particular silicon wafers (), with a fluid (), comprising a container () that holds the fluid (); a rotatable carrying arrangement () for accommodation of the objects to be treated, which is disposed at least partially in the container (); and a rotatably drivable shaft, which is run on at least one bearing () and joined to the carrying arrangement (); with the bearing () including a first bearing member (), which is joined to the shaft, and a second bearing member (), which adjoins the first bearing member () and contains superconductive material; with the first bearing member () being kept spaced from the second bearing member () by magnetic forces.

Device for treating silicon wafers

The invention relates to a method for metal coating the surface of high temperature superconductors with a copper-oxygen base structure. The aim of the invention is to achieve a method as above, which requires a low production complexity, serves for the production of contacts with a low electrical and/or thermal transfer resistance and which increases the stability of the metallization. Said aim is achieved whereby copper is applied to give low-ohmic contacts, and the linked achievement of a stable metallization between the HTS and the electrical and/or thermal coupling. Further advantageous effects are achieved with the method whereby the copper is applied in the form of copper alloys, in particular as copper-nickel or copper-zinc alloys. On applying the method it is furthermore of advantage for the creation of fine grained surface coatings to overlay the galvanic cell with a permanent and/or alternating magnetic field.

Method for metal coating the surface of high temperature superconductors

A centrifuge with a rotor set-up having at least one magnetic bearing is invented to operate a novel centrifuge. The rotor arrangement is connected with at least one permanent magnet configuration which is radially separated by small gap from a passive superconducting magnet stator. The permanent magnets which are adjusted in such a way that the escaping magnetic flux penetrates the adjacent surface of the passive superconducting magnet stator at a substantially perpendicular orientation. A driving motor unit, preferably in the form of a contactless induction engine, ensures a free and frictionless rotation. The passive superconducting magnet stator is comprised a melt textured superconducting YBCO material of high critical current density which can be cooled below its critical temperature of T&equals;92 K using an integrated cryogenic unit to obtain the superconducting state. The stator has a preferred shape of a cylinder or hollow cylinder.

Centrifuge with a magnetically stabilized rotor for centrifugal goods

In a magnetic bearing in which a first part ( ) is mounted magnetically relative to a second part ( ) and the second part ( ) has a Type II superconducting material ( ) containing an anisotropic crystal or a plurality of grains formed of this anisotropic crystal, this crystal being anisotropic in that the superconducting current flows in current-carrying planes, the first part ( ) has a configuration of magnets ( ) with which the superconducting material ( ) interacts, and the crystal itself or the crystal in the plurality of grains faces the first part ( ) with the normals on the current-carrying planes (a-b).

Magnetic bearing and use thereof

In a magnetic bearing in which a first part is mounted magnetically relative to a second part and the second part has a Type II superconducting material containing an anisotropic crystal or a plurality of grains formed of this anisotropic crystal, this crystal being anisotropic in that the superconducting current flows in current-carrying planes, the first part has a configuration of magnets with which the superconducting material interacts, and the crystal itself or the crystal in the plurality of grains faces the first part with the normals on the current-carrying planes.

Magnetic bearing and its use

The high temperature superconducting material is made from a base material having two opposing surfaces and including a high purity yttrium barium copper oxide compound having a YBa.sub.2 Cu.sub.3 O.sub.7-x (123) composition with silver oxide. The method of making the superconducting material includes controlling a temperature of each opposing surface of the base material to form a time-dependent spatial temperature gradient across the base material; measuring the time-dependent spatial temperature gradient, determining whether it is within a desired range and controlling it so that the time-dependent spatial temperature gradient remains within the desired range, thereby melt-texturing the base material while decomposing the silver oxide into silver and transforming the base material into quasi-crystalline superconducting regions having YBa.sub.2 Cu.sub.3 O.sub.7-x (123) composition, intrinsically non-superconducting material zones consisting of coherent yttrium-rich material having a Y.sub.2 BaCuO.sub.5 (211) composition, and copper-enriched interfacial layers between the quasi-crystalline superconducting regions and the non-superconducting material zones, thereby providing a superconductive material, and then cooling the superconductive material, thereby providing a superconducting material having silver inclusions, the superconducting material having the quasi-crystalline superconducting regions separated from the non-superconducting material zones by the copper-enriched interfacial layers, wherein the copper-enriched interfacial layers function as Pinning centers. A new magnetic bearing based on the superconducting material is also described.

Growing community of inventors

Leipzig, Germany

Frank Werfel