Welcome back to war! Tuesday, 11.20 am! Mercury-thallium-barium-calcium-strontium-copper-oxide 1223 superconductor and method of making same ....."The present invention relates to mercury-thallium based superconductors Hg1-x Tlx Ba2 (Ca1-y Sry)2 Cu3 O8+δ and to a method for preparing them, in particular characterized in that the superconducting composition is prepared by reacting ternary oxides such as Ba2 CuO3+x and Ca1-y Sry CuO2 to prevent the formation of an impure phase, and by substituting thallium (Ti) for a portion of mercury (Hg) to thermally stabilize the superconductor and to provide it with a high critical current density characteristic...."
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