61-Filaments Bi-2223/Ag superconducting tapes have been joined by diffusion bonding. The critical currents (I C s) of the joints are obtained by using standard four probe method under no magnetic field in the liquid nitrogen. The microstructures of the joints are evaluated by the electron microscope
Frequency dependence of ac susceptibility of monofilament Bi-2223/Ag superconducting tapes
β Scribed by T.-M. Qu; X.-M. Luo; D.-X. Chen; Z. Han
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 571 KB
- Volume
- 412-414
- Category
- Article
- ISSN
- 0921-4534
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π SIMILAR VOLUMES
Ac-loss and time constant measurements were performed with Bi-2223 tape conductors in Ag matrix at 4.2 K and at 77 K. The frequency dependence of the loss curve shows the expected maximum at xs ΒΌ 1. In some cases the loss curve goes through a minimum in the higher frequency range and then increases
Soldered joints of Bi-2223/Ag-sheathed high temperature superconducting multifilamentary tapes were fabricated using 63 wt.%Sn-34 wt.%Pb-1 wt.%Bi-2 wt.%Ag paste. The soldered joints were observed by scanning electron microscope (SEM) and X-ray diffraction (XRD). Moreover, the electrical properties o