Method for making large area uniform film or long superconducting wire and its apparatus

A superconducting wire, large-area technology, applied in the usage of superconducting elements, manufacturing/processing of superconducting devices, superconducting/high-conducting conductors, etc. question

Active Publication Date: 2005-10-26
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In these schemes, a common feature is that there must be two rollers (sampling and sampling), and the speed of strip movement is mainly increased by increasing the length of the furnace under the condition of certain process parameters, but in this way While the speed is increased, it will also increase the cost of the furnace, and in this continuous tape, the control of the atmosphere in the reaction zone and the non-reaction zone is a difficult point, which often leads to the difference between the superconductivity of this interface and other regions. The difference, which in turn affects the performance of the entire superconducting tape

Method used

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  • Method for making large area uniform film or long superconducting wire and its apparatus
  • Method for making large area uniform film or long superconducting wire and its apparatus
  • Method for making large area uniform film or long superconducting wire and its apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Deposition of large-area YBCO superconducting thin film by using this rotary heating heat treatment furnace device

[0057] The schematic diagram of the reaction chamber is shown in Figure 1.

[0058] In the experiment, LaAlO with a size of 30mm×30mm was used 3 (100) Single crystal substrate, YBCO film was deposited by Wang Sansheng, Wang Lin, Du Peng, Chen Sheng, Han Zhenghe. Chinese Journal of Nonferrous Metals, 11 (3) 2004: 85-89 described TFA-MOD process spin coating. Put the coated sample in the sheet sample holder (3), open the metal flange rotary sealing device (9), pass the sample holder (3) through the metal interface (6), the rotating shaft (5), the connecting shaft ( 10), fixed on the sample holder (4), move along the motor track (7), move the metal flange to rotate the sealing device (9), and tighten the flange. Set the rotational speed of the speed-regulating motor (8) to 10 rpm to drive the sample to rotate. Set the heat treatment process curve for the...

Embodiment 2

[0064] Preparation of YBCO long superconducting wire by using this rotary heating heat treatment furnace

[0065] Schematic diagram of the setup of the reaction chamber 1.

[0066] In the experiment, CeO with a width of 10mm and a length of 10m was used 2 / YSZ / Hastealloy flexible substrate, YBCO film adopts dip coating process, the molar concentration of YBCO colloid is 1.8mol / L, and the pulling speed used is 50mm / min. Put the coated sample in the spiral tube type long wire sample holder (3), open the metal flange rotary sealing device (9), and pass the sample holder (3) through the metal interface (6), the rotating shaft (5), The connecting shaft (10) is fixed on the sample support (4), moves along the motor track (7), moves the metal flange to rotate the sealing device (9), and tightens the flange. Set the rotational speed of the speed-regulating motor (8) to 10 rpm to drive the sample to rotate. Set the heat treatment process curve for the heating furnace body (11), star...

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PUM

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Abstract

A preparation method for large area uniform film or long super conduction leads relates to a film forming method for preparing high temperature super conduction film-clad conductors. Said device includes an oven, a quartz capsule, an air supply system, an outlet system, a coil long lead sample frame or a plate large area membrane sampling frame, a metal flanged rotation sealing system, an adjustable varying-speed motor, a temperature-test thermal couple and its pipe. It does not need expensive investment to invest vacuum chamber devices to the large area film area, there is not the problem of interface so as to prepare long super conducting leads with better performance.

Description

technical field [0001] The invention relates to a method for preparing a large-area uniform thin film or a long superconducting wire, in particular to a film-forming method suitable for preparing a high-temperature superconducting film-coated conductor. This method can meet the requirements of superconducting long strips and large-area films on the uniformity and accuracy of sintering temperature and atmosphere flow during heat treatment, so that superconducting long strips and large-area films with good uniform performance can be effectively prepared. film. [0002] The invention also relates to an atmosphere-controlled rotary heating furnace device according to the method. Background technique [0003] The development of high-temperature superconducting devices has achieved remarkable results so far. Now, bismuth-based wires characterized by copper oxide powder tube technology (OPIT) have been successfully industrialized, and kilometer-level wires can be distributed world...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L39/24
CPCY02E40/64Y02E40/60
Inventor 韩征和王三胜刘莉
Owner TSINGHUA UNIV
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