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U.S. Department of Energy
Office of Scientific and Technical Information

Method to produce YBa sub 2 Cu sub 3 O sub 6+x superconducting wires or tapes

Patent ·
OSTI ID:5300403

This patent describes a method for making an improved ceramic superconductor YBa{sub 2}Cu{sub 3}O{sub 6 + x}. It comprises mixing a yttrium oxide with barium carbonate and copper oxide in the ratio of about 50 to about 100 gm of Y{sub 2}O{sub 3}, about 175 to about 200 gm of BaCO{sub 3} and about 105 to about 300 gm of CuO; ball milling the mixture with zirconia balls for at least one hour; calcining the mixture at 940{degrees} C. + or {minus} 2{degrees} C. with a heating sequence of about 3{degrees} C. to about 5{degrees} C. per minute; maintaining the temperature at 940{degrees} C. + or {minus} 2{degrees} C.

Assignee:
Secretary of the Navy, Washington, DC (United States)
Patent Number(s):
US 5063201; A
Application Number:
PPN: US 7-599605
OSTI ID:
5300403
Country of Publication:
United States
Language:
English