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AssigneesNational Institute of Advanced Industrial Science and Technology, The Japan Steel Works, Ltd.
InventorsMitsugu Sohma, Tetsuo Tsuchiya, Toshiya Kumagai, Kenichi Tsukada, Kunihiko Koyanagi, Takashi Ebisawa, Hidehiko Ohtu
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There is provided a method of efficiently producing a superconductive material more excellent in properties, and large in area when executing thermal decomposition of a metalorganic compound, and formation of a superconductive material with heat treatment. The method of producing a superconductive material comprising the step (1) of applying a solution of an organic compound of metals, oxides of the metals forming a superconductive material, onto a support body to be subsequently dried, the provisional baking step (2) of causing organic components of the organic compound of the metals to undergo thermal decomposition, and the main baking process step (3) of causing transformation of the oxides of the metals into the superconductive material, thereby producing an epitaxially-grown superconductive coating material, wherein the support body is irradiated with the laser light during a period between the steps (1) and (2) from a surface of the support body, on the opposite side of the surface coated with the solution of the organic compound of the metals for forming the superconductive material.
A method of producing a superconductive material comprising the step (1) of applying a solution of an organic compound of metals, oxides of the metals forming a superconductive material, onto a support body to be subsequently dried, the provisional baking step (2) of causing organic components of the organic compound of the metals to undergo thermal decomposition, and the main baking process step (3) of causing transformation of the oxides of the metals into the superconductive material, thereby producing a superconductive coating material, wherein the support body is irradiated with the laser light from a surface of the support body, on the opposite side of the surface coated with the solution of the organic compound of the metals for forming the superconductive material at the time of irradiation with the laser light during a period between the steps (1) and (2).
A method of producing a superconductive material comprising the step (1) of applying a solution of an organic compound of metals, oxides of the metals forming a superconductive material, onto a support body to be subsequently dried, the provisional baking step (2) of causing organic components of the organic compound of the metals to undergo thermal decomposition, and the main baking process step (3) of causing transformation of the oxides of the metals into the superconductive material, subsequently producing a superconductive coating material having undergone epitaxial growth, wherein upon irradiation of a surface of the support body, coated with the solution of the organic compound of metals, forming the superconductive material, with laser light during a period between the steps (1) and (2), the laser light is set to intensity in a range of 0.5 to 20 mJ/cm2, the irradiation being started with the laser light of low intensity to be followed by the irradiation with the laser light of high intensity.
A method of producing a superconductive material comprising the step (1) of applying a solution of an organic compound of metals, oxides of the metals forming a superconductive material, onto a support body to be subsequently dried, the provisional baking step (2) of causing organic components of the organic compound of the metals to undergo thermal decomposition, and the main baking process step (3) of causing transformation of the oxides of the metals into the superconductive material, subsequently producing a superconductive coating material having undergone epitaxial growth, wherein upon irradiation of a surface of the support body, coated with the solution of the organic compound of metals forming the superconductive material, with laser light during a period between the steps (1) and (2), the laser light is set to intensity in a range of 10 to 20 mJ/cm2 to thereby execute irradiation by scanning the laser light.
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