Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-07T20:22:22.015Z Has data issue: false hasContentIssue false
  • English
  • Français

Formation of Superconducting La2−xSrxCaCu2O6−δ Ceramic with Application of O2-HIP Technique

Published online by Cambridge University Press:  15 February 2011

Kiyoshi Oshima ,
Yuichi Watanabe ,
Masasuke Takata  and
Kozo Ishizaki
Kiyoshi Oshima
Affiliation:
Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka, Niigata 940–21, Japan
Yuichi Watanabe
Affiliation:
Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka, Niigata 940–21, Japan
Masasuke Takata
Affiliation:
Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka, Niigata 940–21, Japan
Kozo Ishizaki
Affiliation:
Department of Mechanical Engineering, Nagaoka University of Technology, Nagaoka, Niigata 940–21, Japan
Get access

Abstract

Superconducting La2−xSrxCaCu2O6−δ ceramics (x=0−0.6) were prepared with application of the oxygen-hot-isostatic pressing (O2-HIP) technique. The Tc of various samples was found to depend on both the Sr content and the applied oxygen partial pressure in the HIP treatment. The maximum Tc onset of 50K was observed for samples of the composition x=0.3 and 0.4 HIPped at 1050°C under 60atm oxygen partial pressure, and x=0.1 and 0.2 HIPped at 1050°C under 400atm oxygen partial pressure, respectively. From the analysis of x-ray diffraction patterns for superconducting substances, it was found that there existed a strong correlation between superconducting properties and the lattice parameters.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 251: Symposium S – Pressure Effects on Materials Processing and Design , 1991 , 313
Copyright
Copyright © Materials Research Society 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1] Nguyen, N., Er-Rakho, L., Michel, C., Choisnet, J. and Raveau, B., Mat.Res.Bull. 15,891(1980)Google Scholar
[2] Nguyen, N., Choisnet, J. and Raveau, B., Mat.Res.Bll. 17,567(1982)Google Scholar
[3] Torrance, J.B., Tokura, Y., Nazzal, A. and Parkin, S.S.P., Phys.Rev. Lett. 60,542(1988)Google Scholar
[4] Tamegai, T. and Iye, Y., Physica C 159,181(1989)Google Scholar
[5] Ando, Y., Sera, M., Yamagata, S., Kondoh, S., Onoda, M. and Sato, M., Solid State Commun. 70,303(1989)Google Scholar
[6] Doverspike, K., Liu, J-H., Dwight, K. and Wold, A., J.Solid State Commun. 72,541(1989)Google Scholar
[7] Cava, R.J., Batlogg, B., Dover, R.B. van, Krajewski, J.J., Waszczak, J.V., Fleming, R.M., Peck, W.F. Jr, Rupp, L.W. Jr, Marsh, P., James, A.C.W.P. and Schneemeyer, L.F., Nature 345(1990)602 Google Scholar