Method for manufacturing material for oxide superconductor,...

C - Chemistry – Metallurgy – 01 – G

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C01G 1/00 (2006.01) H01B 12/10 (2006.01) H01B 13/00 (2006.01)

Patent

CA 2566969

A method for manufacturing a material for an oxide superconductor is provided with a step of ionizing a material, which includes atoms that compose the oxide superconductor, in a solution; a step of removing a solvent by jetting the solution in an atmosphere and manufacturing a material powder including the atoms which compose the oxide superconductor; and a step of cooling the material powder in the atmosphere to which cooling air is introduced. The concentration of carbon dioxide in the atmosphere is lower than that in the atmosphere including the ingredients of the removed solvent, the concentration of nitrogen oxide in the atmosphere is lower than that in the atmosphere including the ingredients of the removed solvent, and the concentration of water vapor in the atmosphere is lower than that in the atmosphere including the ingredients of the removed solvent. Thus, density and purity of the oxide superconductor can be improved.

La présente invention concerne un procédé pour fabriquer un matériau destiné à un supraconducteur à oxyde comprenant une étape consistant à ioniser un matériau, qui comprend des atomes qui composent le supraconducteur à oxyde, dans une solution ; une étape consistant à éliminer un solvant en éjectant la solution dans une atmosphère et en fabriquant une poudre de matériau comprenant les atomes qui composent le supraconducteur à oxyde ; et une étape consistant à refroidir la poudre de matériau dans l~atmosphère dans laquelle de l~air de refroidissement est introduit. La concentration en dioxyde de carbone dans l~atmosphère est plus faible que celle dans l~atmosphère comprenant les ingrédients du solvant éliminé, la concentration en oxyde d~azote dans l~atmosphère est plus faible que celle dans l~atmosphère comprenant les ingrédients du solvant éliminé et la concentration en vapeur d~eau dans l~atmosphère est plus faible que celle dans l~atmosphère comprenant les ingrédients du solvant éliminé. Ainsi, la densité et la pureté du supraconducteur à oxyde peuvent être améliorées.

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