Origin of the nanocrystalline interface in superconducting Bi-2223/Ag composites: a SEM/HREM study

$43.90 plus tax (Refund Policy)

Buy Article:

Abstract:

Superconducting Bi-2223/Ag composites were prepared and the microstructure was thoroughly studied. A 20┬ánm thick amorphous–nanocrystalline phase was observed at the interface between the superconductor and the Ag. SEM/HREM/EDX observations were used to study this nanolayer and the results point to incongruent melting as the most probable cause of this phenomenon. The change in concentration of the Bi-2223 phase with the addition of Ag is elucidated in terms of the difference between the sintering temperature used and the incongruent melting. It is suggested that the frequently observed penetration of the ceramic phase into the Ag can be explained by the interfacial energy model.

Document Type: Research Article

DOI: http://dx.doi.org/10.1088/0953-2048/17/6/003

Publication date: June 1, 2004

Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more