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第二代高温超导带材在超导态到正常态转变过程中的时间电阻变化

Temporal resistance variation of the second generation HTS tape during superconducting-to-normal state transition.

作者信息

Malginov Vladimir A, Malginov Andrey V, Fleishman Leonid S

机构信息

Lebedev Physical Institute RAS, Moscow, 119991 Russia.

出版信息

Springerplus. 2013 Nov 9;2:599. doi: 10.1186/2193-1801-2-599. eCollection 2013.

DOI:10.1186/2193-1801-2-599
PMID:24255874
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3828451/
Abstract

BACKGROUND

The quench process in high-temperature superconducting (HTS) wires plays an important role in superconducting power devices, such as fault current limiters, magnets, cables, etc. The superconducting device should survive after the overheating due to quench.

METHODS

We studied the evolution of the resistance of the YBCO tape wire during the quench process with 1 ms time resolution for various excitation voltages.

FINDINGS

The resistive normal zone was found to be located in a domain of about 1-4 cm long. The normal state nucleation begins in 40-60 ms after voltage is applied across the HTS tape. In subsequent 200-300 ms other normal state regions appear. The normal domain heating continues in the following 5-10s that results in a factor of 2-3 increase of its resistance.

CONCLUSIONS

Formation of the normal domain during the quench process follows the same stages for different excitation voltages. Characteristic domain sizes, lifetimes and temperatures are determined for all stages.

摘要

背景

高温超导（HTS）导线中的失超过程在超导电力设备中起着重要作用，如故障电流限制器、磁体、电缆等。超导设备应在因失超而过热后仍能存活。

方法

我们以1毫秒的时间分辨率研究了不同激励电压下YBCO带材在失超过程中的电阻变化。

结果

发现电阻性正常区位于约1 - 4厘米长的区域内。在向高温超导带材施加电压后的40 - 60毫秒内开始出现正常态形核。在随后的200 - 300毫秒内出现其他正常态区域。正常区域在接下来的5 - 10秒内持续升温，导致其电阻增大2 - 3倍。

结论

对于不同的激励电压，失超过程中正常区域的形成遵循相同的阶段。确定了所有阶段的特征区域尺寸、寿命和温度。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ad87/3828451/fa116204e70f/40064_2013_644_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ad87/3828451/498123515875/40064_2013_644_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ad87/3828451/f2ce6f75ef99/40064_2013_644_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ad87/3828451/e0d0a91e48a9/40064_2013_644_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ad87/3828451/fa116204e70f/40064_2013_644_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ad87/3828451/498123515875/40064_2013_644_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ad87/3828451/f2ce6f75ef99/40064_2013_644_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ad87/3828451/e0d0a91e48a9/40064_2013_644_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ad87/3828451/fa116204e70f/40064_2013_644_Fig4_HTML.jpg

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本文引用的文献

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Normal domain temperature profile in second generation HTS tape wire.第二代高温超导带材的正常畴温度分布
Springerplus. 2013 Oct 17;2:535. doi: 10.1186/2193-1801-2-535. eCollection 2013.