Preparation of a single-phase (Bi0.9Pb0.1)2Sr2Ca2Cu3Oy ceramic superconductor
- 15 August 1989
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 66 (4) , 1777-1781
- https://doi.org/10.1063/1.344347
Abstract
Through careful processing, single‐phase material of the (Bi,Pb)‐Sr‐Ca‐Cu oxide with Tc∼111 K has been synthesized. Powder x‐ray diffraction patterns are employed to verify that repetitive grinding and sintering leads to the virtual disappearance of peaks corresponding to the other superconducting polytypoids of this complex system. The dimensions of the face‐centered pseudotetragonal unit cell are determined to be 5.41×5.40×37.13 Å3. The Meissner and shielding effects shown by dc magnetic susceptibility measurement of the bulk and pulverized specimens at various stages of processing demonstrate that the proper high‐Tc superconductor can be synthesized in single‐phase form.This publication has 18 references indexed in Scilit:
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