Enhanced flux pinning in Bi2Sr2CaCu2O8+x superconductor with embedded carbon nanotubes
β Scribed by Kristian Fossheim; Ellen D. Tuset; Thomas W. Ebbesen; Michael M.J. Treacy; Justin Schwartz
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 732 KB
- Volume
- 248
- Category
- Article
- ISSN
- 0921-4534
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π SIMILAR VOLUMES
Experimental evidence is presented for the intercalation of carbon nanotubes (CNs) in polycrystalline Bi 2 Sr 2 CaCu 2 O 8 (BSCCO) samples at the 12 wt.%-CN doping level, based on high-resolution transmission electron microscopy (HRTEM) and X-ray diffraction measurements. Magnetization measurements
From a consideration of the phase equilibrium diagram of the system Bi203-SrO-CaO-CuO, a simple annealing procedure was developed to precipitate Bi2+xSr2\_xCuO6+a, Sr14Ct124041\_ x and BieSr306 in high-temperature superconducting "Bi2Sr2CaCu208" ceramics. The transformation results in a four-fold in
Flux jumping has been observed in the shielding curves of a Bi2Sr2CaCu2Os+x tube between 2.2 and 4.5K, up to \_\_\_3T. The temperature and applied field sweep rate dependences of the flux jump field afj have been examined and compared to those of conventional superconductors with good agreement. At