ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract This paper presents a convenient polymer matrix synthesis route based on the use of metal acetates, which yields Bi2Sr2CaCu2O8+δ (2212 phase) with a Tc higher than 93 K, in air and within a short sintering time (6–12 h) at 855°C. The phase quality of the intermediate and final products has been analysed by powder X-ray diffraction and scanning electron microscopy with energy-dispersive spectroscopy. Macroscopic superconducting characteristics have been determined by alternating-current magnetic susceptibility and direct-current magnetization. The results obtained on a large number of samples suggest that this preparation route is highly reproducible and leads to black-grained powders with excellent homogeneity within a relatively short processing time. The usefulness of these powders to obtain textured superconducting products has been explored and representative results are presented here.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1018653314282
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