𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The formation mechanism of Bi2Sr2Ca2Cu3Ox superconducting phase

✍ Scribed by Minquan Wang; Guohong Xiong; Xiaomin Tang; Zhanglian Hong

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
280 KB
Volume
210
Category
Article
ISSN
0921-4534

No coin nor oath required. For personal study only.

✦ Synopsis

The mechanism and dynamic model of the formation of 2223 phase are presented and verified in the paper. It reveals that with the solubilization of part of the 2212 phase, 2223 phase is formed by the reaction being carried out according to a nucleation and growth mechanism in the presence of liquid phase, which conforms to the JMA dynamics equation. The addition of a little 2223 phase as nucleator, regrinding and resintering can promote the formation of 2223 phase. But the quick formation rate of 2223 phase may lead to irregularity of the 2223 phase structure, which degrades its electric and magnetic properties, while annealing treatment can improve its superconductivy.

πŸ“œ SIMILAR VOLUMES

Superconducting fluctuation in Bi2Sr2Ca2
Superconducting fluctuation in Bi2Sr2Ca2Cu3Ox
✍ W. Schnelle; E. Braun; H. Broicher; H. Weiss; H. Geus; S. Ruppel; M. Galffy; W. πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 English βš– 960 KB

Measurements of the resistivity, of the DC Meissner effect, oflhe isothermal magnetisation, of the specific heat, of the thermal expansion and of the Hall effect are reported for a high quality polycrystalline sample of the 2223 phase of the BiSrCaCuO family of high temperature superconductors. They