Process for producing a high-temperature superconductor

Details Process for producing a high-temperature superconductor Process for producing a high-temperature superconductor

H - Electricity

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31/166

H01L 39/24 (2006.01) C01G 29/00 (2006.01) C04B 35/45 (2006.01)

Patent

CA 2039585

To produce a high-temperature superconductor of the composition Bi(2+a)(Sr(1-b)Ca b)(3-a)Cu(2+c)O(8+x), where a is from 0 to 0.3, b is from 0.1 to 0.9 and c is from 0 to 2, and x has a value which depends on the oxidation state of the metals contained, oxides and/or carbonates of bismuth, strontium, calcium and copper are thoroughly mixed. In this process, the copper compound is used as a mixture of copper(I) oxide and copper(II) oxide. Then the mixture of oxides and/or carbonates is first allowed to react mutually in an inert gas atmosphere at temperatures from 700 to 800°C for 0.5 to 36 hours before subsequently treating the mixture in an oxygen-containing atmosphere at temperatures from 700 to 875°C for 3 to 60 hours.

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