Joining of textured YBCO with YBCO added Ag2O additive

Guo, Wei; Zou, Guisheng; Xiao, Chai; Wu, Aiping; Jiarun, He; Bai, Hailin; Jialie, Ren; Jiao, Yu

doi:10.1016/j.physc.2010.04.002

Cited by 7 publications

(3 citation statements)

References 18 publications

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“…The liquid REBCO provides an effective flux for good bonding, and grows epitaxially from the surfaces of the work pieces during solidification. REBCO fillers with RE = Yb/Er/Tm/Y + Ag have all been used to join YBCO by this method [81][82][83][84]. It should be noted however that the melting of the filler only partially mitigates the requirement for flat joining surfaces.…”

Section: Joints Between Rebco Superconductorsmentioning

confidence: 99%

Persistent current joints between technological superconductors

Brittles

Mousavi

Grovenor

et al. 2015

Supercond. Sci. Technol.

119

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Persistent current joints are crucial components of superconducting magnets—enabling the production of the high and ultra-stable magnetic fields required, for instance, for magnetic resonance measurements. At this critical juncture when persistent mode magnets containing commercial high temperature superconductors may soon become a reality, it is of value to take stock and evaluate current challenges faced in the field of jointing. This paper provides a review of progress made to date on the production and characterization of joints between the five major technological superconductors—NbTi, Nb3Sn, MgB2, BiSCCO and REBCO, including the materials that are used to make these joints.

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Section: Joints Between Rebco Superconductorsmentioning

confidence: 99%

Persistent current joints between technological superconductors

Brittles

Mousavi

Grovenor

et al. 2015

Supercond. Sci. Technol.

119

View full text Add to dashboard Cite

show abstract

“…Meanwhile, numerous papers have been published on the effects of the addition of various elements into the Y123 structure for further improvement in T c , critical current, pinning, etc. [5][6][7][8][9][10]. A recently synthesized new Y-based HTS, Y 3 Ba 5 Cu 8 O 18 (Y358), exhibited superconductivity above 100 K [11].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Sb Substitution on Structural Properties in YBa2Cu3O7 Superconductors

Akyüz

Kocabaş

Yıldız

et al. 2011

J Supercond Nov Magn

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In this study, the effects of partial Sb 3+ ion substitutions for the Y sites and the Cu sites on the superconducting properties of YBa 2 Cu 3 O y (Y123) ceramic superconductors were investigated. The samples were prepared by the conventional solid-state reaction method and the properties of the samples were investigated by means of X-ray diffraction, AC magnetic susceptibility measurements, scanning electron microscope, and energy dispersive X-ray analysis. The critical temperatures were determined to be in the range of 80-92 K for both Systems I and II. It was found that Sb-addition leads to the formation of the non-superconducting YBa 2 SbO 6 phase, which has a negative effect on the critical temperature, since the highest critical temperature was measured for pure Y123. However, the increasing substitution level has a negligible effect on the X-ray diffraction analysis peak intensities of the superconducting phases. In addition, SEM images showed that Sb substitution decreases the grain size and modifies the microstructure development, which makes the samples denser.

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“…The welding of YBaCuO bulks requires a solder material with a low peritectic temperature such as REBaCuO with an heavy rare earth, e.g., Yb, Er [66][67][68][69][70][71], or a YBaCuO with a dopant reducing its peritectic temperature such as Ag [72][73][74]. This method has been shown to be more effective than MSMG [75], while being very fast to realize compared to the time required for the TSMG [76,77]. Figure 14 shows a 10 mm × 10 mm × 7.5 mm GdBaCuO+Ag sample with a ErBaCuO+Ag weld at the middle and its trapped magnetic field map in liquid nitrogen (LN 2 ).…”

Section: Impact Of the Synthesis Process On Performancesmentioning

confidence: 99%

Review on the Use of Superconducting Bulks for Magnetic Screening in Electrical Machines for Aircraft Applications

et al. 2021

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High-Temperature Superconductors (HTS) considerably accelerate the development of superconducting machines for electrical engineering applications such as fully electrical aircraft. This present contribution is an overview of different superconducting materials that can be used as magnetic screens for the inductor of high specific power electrical machines. The impact of the material properties, such as the critical temperature (Tc) and the critical current density (Jc), on the machine performances is evaluated. In addition, the relevance to flux modulation machines of different HTS bulk synthesis methods are addressed.

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Joining of textured YBCO with YBCO added Ag2O additive

Cited by 7 publications

References 18 publications

Persistent current joints between technological superconductors

Persistent current joints between technological superconductors

The Effects of Sb Substitution on Structural Properties in YBa2Cu3O7 Superconductors

Review on the Use of Superconducting Bulks for Magnetic Screening in Electrical Machines for Aircraft Applications

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