JP2865122B2 - Superconductor manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for manufacturing a superconductor.

[0002]

2. Description of the Related Art Conventionally, ceramic-based superconductors have been manufactured by mixing and compressing so-called new ceramics-based elements including barium, yttrium, copper, and the like with an agate of agate, and then sintering in an oxygen atmosphere. Was purified. Further, a method such as annealing with a laser beam after sintering has been used. In this method, the characteristics were extremely restricted by the mixing ratio, and the reproducibility of the purification conditions was poor.

Some proposals have been made for a method of forming crystals in a magnetic field for other semiconductor materials such as silicon, and it is very significant to effectively utilize characteristics immediately after purification. In particular, these elements include rare earths,
There is also a problem with the supply of resources in the future, and there is an urgent need to develop more efficient manufacturing methods.

[0004]

In the above-mentioned prior art, since only materials having good characteristics after firing are used while changing the mixing ratio of various material compositions little by little, the production method is extremely inefficient. There are issues. In addition, a treatment method has been proposed in which heat treatment is performed after purification to expect a conversion to a composition having more excellent properties, but the effect was not practically sufficient.

The present invention solves the above-mentioned problems of the prior art and provides a method for producing a superconductor capable of intentionally separating only effective components.

[0006]

According to the present invention, a laser generator is provided in a superconductor manufacturing apparatus comprising a strong magnetic field generator, a milling apparatus and a purified product recovery apparatus, and a laser beam is applied to the raw material milled inside the apparatus. A method for manufacturing a superconductor is obtained, wherein the method is characterized by baking by condensing light, and selectively recovering only a baking substance exhibiting a magnetic effect by a strong magnetic field from the strong magnetic field generator.

That is, according to the present invention, a milling device provided in a strong magnetic field and a laser beam generator for guiding a laser beam to the milling device are provided, and the compression generated in the milling device by the laser beam and the generator is provided. Sintered components are instantly sintered by a high-energy laser beam, and can be introduced into a desired recovery system by a strong magnetic field, utilizing the fact that the fired components are cooled and have a negative effect at the same time. It is. then,
Raw materials having unnecessary properties are milled again, circulated until they have the desired properties, and returned to the milling device, so that they can be efficiently purified. Note that the thrust of the magnetic material due to a negative effect known from MHD power generation or the like can be used to recover the magnetic material.

[0008]

FIG. 1 is a block diagram showing an embodiment of the present invention.

Reference numeral 1 denotes a milling device, which is driven by a motor 6 or the like, and mixes and compresses the raw material of the neuceramics-based element into fine powder by this device, and floats it in a container 7 by turbulent flow.

A laser beam emitted from the generator 2 is focused on the center of the convection in the container 7 by the lens 4,
The fine powder is introduced through a window 8 provided in the container wall, and is baked. The fine powder is usually sent back to the milling device by the fan 5 as gentle convection. Here, when the fine powder having a negative effect is fired by the laser beam, it is guided by the magnetic field of about 8,000 gauss generated by the magnetic field generators M1 and M2, and is guided to the recovery device 3.

FIG. 2 shows a configuration diagram of a second embodiment of the present invention. Although the configuration is almost the same as that of FIG. 1, the laser generator 2 is provided on the side of the recovery device 3 which is less affected by convection, and introduces the laser beam into the milling device which has more compressed raw materials. There is an advantage that you can.

[0012]

As described above, the present invention utilizes the fact that the raw material immediately after firing is a substance exhibiting a desired superconductivity, and separates it from a substance having an unnecessary composition in a strong magnetic field. By effectively recovering by using thrust, there is an effect that purification can be performed more efficiently than in the conventional superconductor manufacturing method.

[0013] Further, since the fired body that does not have the desired characteristics is milled again and can be reused until it has the desired characteristics, it can be purified much more efficiently than the annealing method and the like. Is selected so as not to convect the recovery device side other than the Masunas effect, a very efficient manufacturing system can be obtained, and the efficiency can be improved by a factor of about 10 as compared with the conventional one.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Milling device 2 Laser generator 3 Recovery device 4 Lens 5 Convection fan 6 Motor 7 Container 8 Window M1, M2 Magnetic field generator

Claims (1)

(57) [Claims] 1. A laser generator is provided in a superconductor manufacturing apparatus comprising a strong magnetic field generator, a milling apparatus, and a purified product recovery apparatus, and a laser beam is condensed on a raw material milled in the apparatus, followed by firing. A method for manufacturing a superconductor, comprising selectively recovering only a fired substance exhibiting a magnetic effect by a strong magnetic field from the strong magnetic field generator.