| 简介 |
There is provided a method of fabricating a precursor solution for a metal organic deposition method using a superconducting oxide as a starting material, the method including dispersing a superconducting material powder in a TFA acid aqueous solution and heating them to dissolve the powder in the TFA solution; increasing a temperature of a hot substrate if the powder is completely dissolved, and the solution is clear, and continuously heating until the solution is vaporized and is in a viscous jelly state; stopping the heating if the solution loses its flowing property completely, and cooling the solution; and dissolving the compound in the jelly state, hardened at a room temperature, into an organic solvent, to provide metal organic deposition solution for coating. There is also provided a method of fabricating a thin film-typed superconductor using a metal organic deposition method, the method including dispersing a superconducting material powder in a TFA acid aqueous solution and heating them to dissolve the powder in the TFA solution; increasing a temperature of a hot substrate if the powder is completely dissolved, and the solution is clear, and continuously heating until the solution is vaporized and is in a viscous jelly state; stopping the heating if the solution loses its flowing property completely, and cooling the solution; dissolving the compound in the jelly state, hardened at a room temperature, into an organic solvent, to provide a superconducting material powder-TFA precursor solution; after forming a textured oxide buffer layer on a textured metal substrate, or forming a textured oxide template on a metal substrate and forming an oxide buffer layer thereon, dropping the superconducting material powder-TFA precursor solution on the single crystal metal substrate so as to deposit a thin film; and drying it to form the thin film; and applying a calcination heat treatment on the thin film to provide the thin film with a superconducting property. In the method of fabricating a thin film superconducting conductor using REBa2Cu3O7-x (RE=rare earth elements such as Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, etc. or mixture thereof), a precursor solution is fabricated by dissolving REBa2Cu3O7-x (RE=rare earth elements such as Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, etc. or mixture thereof) group of oxide into TFA acid aqueous solution, and using the precursor solution, the superconducting conductor can be provided more easily with a lower price than a conventional precursor solution. |
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