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Experimental Analysis of Critical Current and Alternating Current Losses of High-Temperature Superconductor Tape With Resin and Gallium-Indium-Tin

Experimental Analysis of Critical Current and Alternating Current Losses of High-Temperature Superconductor Tape With Resin and Gallium-Indium-Tin

Dongmin Yu, Yajie Sun, Huiming Zhang, Yuanzhu Meng, Huanan Liu

Materials (Basel). 2018 Apr 8;11(4):573.

PMID: 29642490

Abstract:

This paper experimentally analyzes the critical current degradation and AC (alternating current) losses of second-generation (2G) high-temperature superconductor (HTS) tape during the impregnation process. Two impregnation materials were utilized: Gallium-Indium-Tin (GaInSn), and an epoxy resin, Araldite. The critical current of the impregnation materials was measured after different thermal cycles and compared with the tape with no impregnation process. The experimental results show that the critical current of Yttrium Barium Copper Oxide (YBCO) short samples varies between differently impregnated materials. The resin, Araldite, degraded the critical current; however, the GaInSn showed no degradation. Two degradation patterns with Araldite were identified due to the impregnation process, and the corresponding causes were analyzed. We further measured the AC losses of tapes impregnated with liquid metal at different frequencies, up to 600 Hz. Based on the experimental results, GaInSn liquid metal should be the most suitable impregnation material in terms of critical current degradation.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP107539208	Yttrium barium copper oxide		107539-20-8	Price

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