Angular dependence of critical current in YBCO tapes fabricated by inclined substrate deposition

Sato, Y.; Honjo, S.; Takahashi, Yoshihisa; Muranaka, K.; Fujino, K.; Taneda, T.; Ohmatsu, K.; Takei, H.

doi:10.1016/s0921-4534(02)01721-5

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…As transverse fields reduce the current density in HTS [1][2][3], its value is determined in the insert and its maximal field is compared to the local parallel one. The most critical field locations are summarized in Table III.…”

Section: Perpendicular Field Contributionmentioning

confidence: 99%

“…It permits to reach the very high field required thanks to their outstanding in field current capacities. In order to produce these kinds of magnets, the orientation of the field with respect to the HTS tape should be studied with caution [1][2][3], the stress level should be well controlled and new way of protection should be developed [4]. The objective of the study is to demonstrate the feasibility of a HTS magnet of 6 T in an aperture of 99 mm inserted in a Nb 3 Sn dipole of 13 T. The design of this insert is mainly driven by the mechanical structure: an external tube of 3 mm with pads is used to maintain forces, as detailed on the seventh section.…”

Section: Introductionmentioning

confidence: 99%

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HTS Insert Magnet Design Study

Devaux

Debray²,

Fleiter³

et al. 2012

IEEE Trans. Appl. Supercond.

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Abstract-Future accelerator magnets will need to reach higher field in the range of 20 T. This field level is very difficult to reach using only Low Temperature Superconductor materials whereas High Temperature Superconductors (HTS) provide interesting opportunities. High current densities and stress levels are needed to design such magnets. YBCO superconductor indeed carries large current densities under high magnetic field and provides good mechanical properties especially when produced using the IBAD approach. The HFM EUCARD program studies the design and the realization of an HTS insert of 6 T inside a Nb 3 Sn dipole of 13T at 4.2 K. In the HTS insert, engineering current densities higher than 250 MA/m 2 under 19 T are required to fulfill the specifications. The stress level is also very severe. YBCO IBAD tapes theoretically meet these challenges from presented measurements. The insert protection is also a critical because HTS materials show low quench propagation velocities and the coupling with the Nb 3 Sn magnet makes the problem even more challenging. The magnetic and mechanical designs of the HTS insert as well as some protection investigation ways will be presented.Index Terms-High field magnet, High Temperature Superconductor, YBaCuO.

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Section: Perpendicular Field Contributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

HTS Insert Magnet Design Study

Devaux

Debray²,

Fleiter³

et al. 2012

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

show abstract

“…Such tapes are fabricated by inclined substrate deposition. The critical currents show strong angular dependence in the mixed state [2][3][4]. This results from the effect of crystal anisotropy on the magnetic properties of the mixed state [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 96%