Critical current density and dynamic stability of high-Tc oxide superconductor
โ Scribed by Michiaki Matsukawa; Koshichi Noto; Manabu Ikebe; Yoshihiko Kashiwazaki; Nobuyoshi Matsuura; Kazuo Watanabe; Katsunori Mori
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 157 KB
- Volume
- 185-189
- Category
- Article
- ISSN
- 0921-4534
No coin nor oath required. For personal study only.
โฆ Synopsis
The temperature and thickness dependences of the transport critical current have been measured for the YBCO bulk superconductor. Thickness dependence is explained by the cooling model and the heat flow into LNz is a important factor to limit the quench current.
๐ SIMILAR VOLUMES
Y1Ba2Cu307\_x and Bi2Sr2CalCu208+ x Ag sheathed high Tc superconductor wires have been prepared using the powder in tube technique. Characterization of wire specimens was performed mainly by measuring critical current densities at 77 K and 4.2 K, as well as by a.c. susceptibility measurements. Where
YBa2Cu307 crystals fabricated by a quench and melt growth process contain fine Y2BaCuO5 particles. These fine precipitates are considered to have three beneficial effects: they suppress crack formation; they promote oxygen diffusion; and they act as pinning centres. Such crystals exhibit larger flux