Superconducting compositions

Details Superconducting compositions Superconducting compositions

H - Electricity

01

B

H01B 1/00 (2006.01) C01G 3/02 (2006.01) C01G 21/00 (2006.01) C04B 35/01 (2006.01) C04B 35/45 (2006.01) H01B 12/00 (2006.01) H01L 39/12 (2006.01)

Patent

CA 2140632

2140632 9402947 PCTABS00030 A superconductor that is free of Tl and may have a sharp transition from metallic to superconducting behaviour at temperatures up to about 80K at least is characterized by the formula (PbaA1-a)(SrbBa1-b)2(CacB1-c)Cu2O7 in which at least half the A atoms are Hg and the remainder, if any, are selected from one or more of Zn, Cd, Tl, Sc, Mg, and Cu; B is selected from Y and the rare earth elements; a is from 0.3 to 0.7; b is from 0 to 1; and c is from 0.2 to 0.5 (all limits inclusive).

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