Process for producing molded bodies from precursors of...

Details Process for producing molded bodies from precursors of... Process for producing molded bodies from precursors of...

H - Electricity

01

L

H01L 39/00 (2006.01) C04B 35/45 (2006.01) C04B 35/653 (2006.01)

Patent

CA 2048144

HOE 90/H 025 Process for producing molded bodies from precursors of high-temperature superconductors Abstract of the disclosure: To produce more complex molded bodies from precursors of high-temperature superconductors based on the oxides of bismuth, strontium, calcium and copper, the homogeneous melt of these oxides is cast in molds at temperatures of 870 to 1000°C. In this process, the geometrically approp- riately shaped molds are composed of a material having a melting point of at least 1000°C. Finally, the molds containing solidified melt of the oxides of bismuth, strontium, calcium and copper are treated with dilute hydrofluoric acid at temperatures of 20 to 90°C until the molds are dissolved.

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