Cart (Loading....) | Create Account
Close category search window
 

Critical current and structure of Bi-2212 bulk oxides prepared by a diffusion process

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Yamada, Y. ; Tokai Univ., Kanagawa, Japan ; Hishinuma, Y. ; Yamashita, F. ; Wada, K.
more authors

Bi-2212 oxide superconductors have been synthesized by a diffusion process between a Sr-Ca-Cu oxide substrate and a Bi-Cu oxide coating layer. The substrate is formed into a shape of cylindrical rod 3 mm in diameter by CIP, and then sintered. The coating layer with Ag/sub 2/O addition is coated around the surface of the substrate rod. The heat treatment is performed at 820-860/spl deg/C to produce Bi-2212 diffusion phase. The Ag added to the coating layer enhances the diffusion reaction. The Bi-2212 diffusion layer, about 180 /spl mu/m in thickness, shows high density and oriented structure with plate-like grains. The transport I/sub c/ and J/sub c/ of the diffusion layer exceed 300 A and 2/spl times/10/sup 4/ A/cm/sup 2/, respectively, at 25 K and 0 T. The I/sub c/ decreases to about 100 A at 40 K and 0.5 T. Present investigation indicates that the bulk Bi-2212 oxide prepared by the diffusion process may be attractive for a current lead of cryocooler-cooled superconducting magnets.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:7 ,  Issue: 2 )

Date of Publication:

June 1997

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.