Accession Number:

ADA199104

Title:

Chemical Compatibility of High-Tc Superconductors with Other Materials

Descriptive Note:

Technical rept. no. 12, Aug 1987-Jul 1988

Corporate Author:

CALIFORNIA UNIV LOS ANGELES

Personal Author(s):

Report Date:

1988-07-22

Pagination or Media Count:

14.0

Abstract:

In any application, the new oxide superconductors will have to coexist in intimate contact with other materials. However, the copper oxygen bonds common to all presently known oxide superconductors with Tc above 40K are relatively weak. This means that elements that form much stronger bonds with oxygen, such as Si, will be chemically unstable when in contact with the copper- oxide superconductors. In this paper, we will establish procedures and guidelines that will enable workers to choose materials that will not react chemically with the oxide superconductors. These should enable researchers working in all applications areas to avoid unnecessary empirical searches for suitable substrate or host materials by eliminating the most thermodynamically unfavorable choices. In particular, we have determined which of the elemental metals should be most stable in contact with the copper-oxide semiconductors, and examined schemes for integrating these superconductors into Si devices. Keywords Oxide superconductors, Sintering, and Annealing, Chemical stability.

Subject Categories:

  • Inorganic Chemistry
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE