Accession Number:

ADA248738

Title:

Processing of YBa(2)Cu(3)O(x) Ceramic Materials: Effect of Additives

Descriptive Note:

Interim rept. Oct 1990-Sep 1991

Corporate Author:

NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SHIP MATERIALS ENGINEERING DEPT

Personal Author(s):

Report Date:

1992-01-31

Pagination or Media Count:

22.0

Abstract:

The effect of the addition of Al2O3, TiO2, PbO and Ag2O, in the concentration range 0 - 30 wt., on crystal structure, morphology and superconductivity of YBa2CU306x was investigated. The results suggest that the addition of either Al2O3, TiO2 or PbO tend to stabilize the non superconducting tetragonal phase at the expense of superconducting orthorhombic phase. The oxygen from YBa2CU306X tends to migrate towards the additive and this process degrades the superconducting property of YBa2CU3O6x and increases the resistance. The addition of silver oxide, although it does not affect the particle size of YBa2CU3O6xl it improves the electrical properties of the composite.

Subject Categories:

  • Inorganic Chemistry
  • Ceramics, Refractories and Glass
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE